I have a PC running with Ubuntu 22.04 LTS. On this PC, two software-packages are continuously running as systemd-services. Their status is visualized on a second PC and I am checking it regularly.

Several times I notices, that something is wrong, because the software appeared to not running. Then, I tried to investigate the issue by connecting to the PC via SSH. I saw following behavior:

• Sometimes It is possible to ping the PC, but connecting via SSH is not possible

• Sometimes I can connect via SSH, but instead of the "normal" shell (user@hostname:/current/path$) I only get a "minimal" prompt (-bash-5.1$). Most commands like ll, systemctl, journalctl, reboot etc. fail because of an "Input/output error".

In both cases only a power cycle resolves the issue.

After the PC and the software were runinng again, I checked /var/log/syslog and saw messages indicating the nvme hard drive may become unresponsive or disconnected. Here some relevant logs:

May 18 17:54:41 user1 service-name[734193]: Service log
May 18 17:54:42 user1 service-name[734193]: Service log
May 18 17:54:43 user1 service-name[734193]: Service log
May 18 17:55:12 user1 kernel: [5890459.296924] nvme nvme0: I/O 328 QID 13 timeout, aborting
May 18 17:55:12 user1 kernel: [5890459.296933] nvme nvme0: I/O 329 QID 13 timeout, aborting
May 18 17:55:12 user1 kernel: [5890459.296935] nvme nvme0: I/O 330 QID 13 timeout, aborting
(...)
May 18 17:56:15 user1  kernel: [5890522.348150] systemd[1]: software1.service: State 'final-sigterm' timed out. Killing.
May 18 17:56:15 user1  kernel: [5890522.348192] systemd[1]: software1.service: Killing process 1212571 (sensors) with signal SIGKILL.
May 18 17:56:15 user1  kernel: [5890522.348215] systemd[1]: software1.service: Failed with result 'exit-code'.
May 18 17:56:15 user1 kernel: [5890522.348221] systemd[1]: software1.service: Unit process 1212571 (sensors) remains running after unit stopped.
May 18 17:56:15 user1 kernel: [5890522.348303] systemd[1]: software1.service: Consumed 1.583s CPU time.
(...)
May 18 17:57:40 user1 kernel: [5890607.263124] INFO: task jbd2/dm-0-8:456 blocked for more than 120 seconds.
May 18 17:57:40 user1 kernel: [5890607.263130]       Not tainted 5.15.0-157-generic #167-Ubuntu
May 18 17:57:40 user1 kernel: [5890607.263131] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message.
May 18 17:57:40 user1 kernel: [5890607.263132] task:jbd2/dm-0-8     state:D stack:    0 pid:  456 ppid:     2 flags:0x00004000
May 18 17:57:40 user1 kernel: [5890607.263134] Call Trace:
May 18 17:57:40 user1 kernel: [5890607.263136]  <TASK>
May 18 17:57:40 user1 kernel: [5890607.263138]  __schedule+0x24e/0x590
May 18 17:57:40 user1 kernel: [5890607.263142]  ? bit_wait+0x70/0x70
May 18 17:57:40 user1 kernel: [5890607.263143]  schedule+0x69/0x110
(...)
May 18 17:57:44 user1 kernel: [5890611.519174] nvme0n1: detected capacity change from 1953525168 to 0
May 18 17:57:44 user1 kernel: [5890611.519174] blk_update_request: I/O error, dev nvme0n1, sector 135114736 op 0x1:(WRITE) flags 0x0 phys_seg 76 prio class 0
May 18 17:57:44 user1 kernel: [5890611.519177] blk_update_request: I/O error, dev nvme0n1, sector 134890608 op 0x1:(WRITE) flags 0x0 phys_seg 1 prio class 0
May 18 17:57:44 user1 kernel: [5890611.519181] EXT4-fs warning (device dm-0): ext4_end_bio:344: I/O error 10 writing to inode 3935858 starting block 16089344)
(...)

Based on some online research, I tried to adapt following line in /etc/default/grub and then executed "update-grub":

GRUB_CMDLINE_LINUX_DEFAULT="quiet splash pcie_aspm=off nvme_core.default_ps_max_latency_us=5000"

However, the issue still occured after a few days. I tried Ubuntu 22.04 LTS desktop and Ubuntu 22.04 LTS server version, but the behavior remained the same.

Does anyone may know is causing this issue and why it happens? How can I fix this? I cannot manually power cycle the PC everytime this happens. I would also not prefer to change some setting in BIOS.

Thanks in advance!

import -window root -crop 1920x1080+0+0 /home/user/pictures/screenshots/$(date +%Y-%m-%d--%H-%M-%S)_1920x1080+0+0.png

• in a bash script is simultaneously making a bell and drip sound; probably bell-window-system
  • it does the same thing when executed from konsole as the above command
  • echo -e "\a" does NOT make any sound
  • i want it to be silent, but not by globally reducing a volume slider (a suggested "similar questions")

i cant figure out why

Kubuntu 26.04 Linux betlogbeast 7.0.0-15-generic #15-Ubuntu SMP PREEMPT_DYNAMIC Wed Apr 22 16:06:43 UTC 2026 x86_64 GNU/Linux X11 pipewire

I installed the latest Ubuntu (24.04.4 LTS) on this laptop and can not get sound. under output device it shows (Dummy Output) . i spent many , many hours with ChatGPT trying to get it working and no dice. then i installed Mint x, the same issue, no sound. I tried Fedora and it works fine. I wanted Ubuntu here to be consistent with my other 2 laptops running the same version.

I'm trying to install a php application (Nextcloud, if it's important) on my Ubuntu 24.04.3 server and I keep getting an error message saying:

                       Can't write into config directory!
 This can usually be fixed by giving the webserver write access to the config directory.

.

The thing is, the config directory already has 755 permissions and is owned by www-data. I've been trying to troubleshoot this with the Nextcloud forum and they just threw up their hands and said it's an Ubuntu problem. Their suggestion was to wipe the entire installation and rebuild; I can't do that because it's also my mail server and I need that.

Any help or advice gratefully accepted!

Oh, before I forget: the php installation is the latest 8.5 from Ondrej's repository.

Just wondering if anyone else had noticed anything similar? Not a major issue. Appeared after latest?update.

In the terminal I paste with the left button, but the middle mouse button does not paste. I have earlier used Xubuntu with the same hardware and using mouse to select and paste is important to me. What should I do?

On Windows, Mac and iPhone i get a pop-up to accept a certificate when connecting to a corporate network (WIFI)

How to get / extract this Certificate on ubuntu Linux.

(So far it seems there should be a way by reading the network logs or packages)

I'm trying to install Kubuntu, but I'm stuck at the very beginning because the installer completely freezes during the boot process

When I try to boot in normal mode the system freezes completely.

When I add the nomodeset parameter and try to boot it still freezes at the same point.

When I try to add nomodeset nouveau.modeset=0 acpi=off to the command line it still freezes .

Kubuntu and Ubuntu 24.04 LTS versions work without any problems. I want to dual boot with Windows, so I have Windows 11 installed on my computer. I have unallocated 1.5TB of free space for Kubuntu.

I turned off Intel Rapid Storage tech, Secure Boot and fast startup.

Specs:

Motherboard: ROG Strix z790-f gaming wifi 2
CPU: Intel Core i9-14900KF
GPU: Asus TUF RTX 4090 24GB
RAM: Crucial Pro 48GB ddr5 5600 2x
Storage: Samsung 990 pro NVMe 2.0 4TB

         Mounting snap-icon\x2dtheme\x2dbreeze-5.mount - Mount unit for icon-theme-breeze, revision 5...
         Mounting snap-mesa\x2d2404-1165.mount - Mount unit for mesa-2404, revision 1165...
         Mounting snap-snapd-26865.mount - Mount unit for snapd, revision 26865...
         Mounting snap-thunderbird-1057.mount - Mount unit for thunderbird, revision 1057...
         Mounting tmp.mount - /tmp...
[  OK  ] Mounted snap-bare-5.mount - Mount unit for bare, revision 5.
[  OK  ] Mounted snap-core24-1587.mount - Mount unit for core24, revision 1587.
[  OK  ] Mounted snap-firefox-8107.mount - Mount unit for firefox, revision 8107.
[  OK  ] Mounted snap-gnome\x2d46\x2d2404-153.mount - Mount unit for gnome-46-2404, revision 153.
[  OK  ] Mounted snap-mesa\x2d2404-1165.mount - Mount unit for mesa-2404, revision 1165.
[  OK  ] Mounted snap-icon\x2dtheme\x2dbreeze-5.mount - Mount unit for icon-theme-breeze, revision 5.
[  OK  ] Mounted tmp.mount - /tmp.
[  OK  ] Mounted snap-gtk\x2dtheme\x2dbreeze-8.mount - Mount unit for gtk-theme-breeze, revision 8.
[   23.494397] genirq: Flags mismatch irq 0. 00200080 (i801_smbus) vs. 00215a00 (timer)
[   23.494505] i801_smbus 0000:00:1f.4: error -EBUSY: request_irq(0) i801_isr [i2c_i801] 0x0 i801_smbus
[   23.494614] i801_smbus 0000:00:1f.4: Failed to allocate irq 0: -16
[  OK  ] Mounted snap-snapd-26865.mount - Mount unit for snapd, revision 26865.
[  OK  ] Mounted snap-gtk\x2dcommon\x2dthemes-1535.mount - Mount unit for gtk-common-themes, revision 1535.
[  OK  ] Mounted snap-thunderbird-1057.mount - Mount unit for thunderbird, revision 1057.
[  OK  ] Reached target snapd.mounts.target - Mounted snaps.
[  OK  ] Reached target local-fs.target - Local File Systems.
[  OK  ] Listening on systemd-sysext.socket - System Extension Image Management.
         Starting console-setup.service - Set console font and keymap...
         Starting finalrd.service - Create final runtime dir for shutdown pivot root...
         Starting netplan-configure.service - Netplan Backend Configuration...
         Starting plymouth-read-write.service - Tell Plymouth To Write Out Runtime Data...
         Starting snapd.apparmor.service - Load AppArmor profiles managed internally by snapd...
         Starting systemd-binfmt.service - Set Up Additional Binary Formats...
         Starting systemd-tmpfiles-setup.service - Create System Files and Directories...
         Starting ufw.service - Uncomplicated firewall...
[  OK  ] Finished finalrd.service - Create final runtime dir for shutdown pivot root.
[  OK  ] Finished plymouth-read-write.service - Tell Plymouth To Write Out Runtime Data.
[  OK  ] Finished netplan-configure.service - Netplan Backend Configuration.
[  OK  ] Finished console-setup.service - Set console font and keymap.
[  OK  ] Finished ufw.service - Uncomplicated firewall.
[  OK  ] Reached target network-pre.target - Preparation for Network.
         Starting systemd-rfkill.service - Load/Save RF Kill Switch Status...
         Mounting proc-sys-fs-binfmt_misc.mount - Arbitrary Executable File Formats File System...
[  OK  ] Mounted proc-sys-fs-binfmt_misc.mount - Arbitrary Executable File Formats File System.
[  OK  ] Finished systemd-binfmt.service - Set Up Additional Binary Formats.
[  OK  ] Finished systemd-tmpfiles-setup.service - Create System Files and Directories.
         Starting ldconfig.service - Rebuild Dynamic Linker Cache...
         Starting systemd-journal-catalog-update.service - Rebuild Journal Catalog...
[  OK  ] Finished systemd-journal-catalog-update.service - Rebuild Journal Catalog.
[  OK  ] Started systemd-rfkill.service - Load/Save RF Kill Switch Status.
[   26.010372] snd_hda_intel 0000:00:1f.3: no codecs found!
[****  ] (1 of 2) Job ldconfig.service/start running (3s / no limit)

I'm running Ubuntu 22.04 and I am trying to install iTunes Backup Explorer's .deb package from here using dpkg. However, when I try to install it, I am told that it needs libasound2t64 as a dependency. I go to install that package with sudo apt-get install libasound2t64 and I am confronted with this message:

Reading package lists... Done
Building dependency tree... Done
Reading state information... Done
Package libasound2t64 is not available, but is referred to by another package.
This may mean that the package is missing, has been obsoleted, or
is only available from another source

E: Package 'libasound2t64' has no installation candidate

How do I get package libasound2t64? Searching for that name for Ubuntu doesn't turn up much that actually says libasound2t64.

In Xubuntu 26.04 my syslog seems to be loaded with many entries that contain: Checking session /org/freedesktop/login1

They don't look important. What can I do to stop them?

Here's a sample of my /var/log/syslog:

2026-05-27T20:47:41.381582-05:00 localhost snapd-desktop-i[1221236]: Failed to do gtk init. Waiting for a new session with desktop capabilities.
2026-05-27T20:47:41.386495-05:00 localhost snapd-desktop-i[1221236]: Checking session /org/freedesktop/login1/session/_32...
2026-05-27T20:47:41.387572-05:00 localhost snapd-desktop-i[1221236]: Checking session /org/freedesktop/login1/session/_37...
2026-05-27T20:47:41.388468-05:00 localhost snapd-desktop-i[1221236]: Checking session /org/freedesktop/login1/session/_36...
2026-05-27T20:47:41.389395-05:00 localhost snapd-desktop-i[1221236]: Checking session /org/freedesktop/login1/session/c1...
2026-05-27T20:47:41.390223-05:00 localhost snapd-desktop-i[1221236]: Checking session /org/freedesktop/login1/session/c5...
2026-05-27T20:47:41.391028-05:00 localhost snapd-desktop-i[1221236]: Is a desktop session! Forcing a reload.
2026-05-27T20:47:41.391083-05:00 localhost snapd-desktop-i[1221236]: Checking session /org/freedesktop/login1/session/c6...
2026-05-27T20:47:41.391802-05:00 localhost snapd-desktop-i[1221236]: Checking session /org/freedesktop/login1/session/_31...
2026-05-27T20:47:41.392612-05:00 localhost snapd-desktop-i[1221236]: Loop exited. Forcing reload.
2026-05-27T20:47:43.491088-05:00 localhost systemd[14916]: snap.snapd-desktop-integration.snapd-desktop-integration.service: Scheduled restart job, restart counter is at 18252.
2026-05-27T20:47:43.493556-05:00 localhost systemd[14916]: Started snap.snapd-desktop-integration.snapd-desktop-integration.service - Service for snap application snapd-desktop-integration.snapd-desktop-integration.
2026-05-27T20:47:43.566371-05:00 localhost kernel: kauditd_printk_skb: 11 callbacks suppressed
2026-05-27T20:47:43.566385-05:00 localhost kernel: audit: type=1400 audit(1779932863.565:134693): apparmor="DENIED" operation="open" class="file" profile="snap.snapd-desktop-integration.snapd-desktop-integration" name="/proc/1221242/mountinfo" pid=1221242 comm="snap-exec" requested_mask="r" denied_mask="r" fsuid=1005 ouid=1005
2026-05-27T20:47:43.585369-05:00 localhost kernel: audit: type=1400 audit(1779932863.584:134694): apparmor="DENIED" operation="open" class="file" profile="snap.snapd-desktop-integration.snapd-desktop-integration" name="/proc/1221286/mountinfo" pid=1221286 comm="snapctl" requested_mask="r" denied_mask="r" fsuid=1005 ouid=1005
2026-05-27T20:47:43.591369-05:00 localhost kernel: audit: type=1400 audit(1779932863.590:134695): apparmor="DENIED" operation="open" class="file" profile="snap.snapd-desktop-integration.snapd-desktop-integration" name="/proc/1221291/mountinfo" pid=1221291 comm="snapctl" requested_mask="r" denied_mask="r" fsuid=1005 ouid=1005
2026-05-27T20:47:43.629399-05:00 localhost kernel: audit: type=1400 audit(1779932863.627:134696): apparmor="DENIED" operation="open" class="file" profile="snap.snapd-desktop-integration.snapd-desktop-integration" name="/etc/host.conf" pid=1221299 comm="snapd-desktop-i" requested_mask="r" denied_mask="r" fsuid=1005 ouid=0
2026-05-27T20:47:43.629414-05:00 localhost kernel: audit: type=1400 audit(1779932863.627:134697): apparmor="DENIED" operation="open" class="file" profile="snap.snapd-desktop-integration.snapd-desktop-integration" name="/run/systemd/resolve/stub-resolv.conf" pid=1221299 comm="snapd-desktop-i" requested_mask="r" denied_mask="r" fsuid=1005 ouid=989
2026-05-27T20:47:43.629416-05:00 localhost kernel: audit: type=1400 audit(1779932863.628:134698): apparmor="DENIED" operation="open" class="file" profile="snap.snapd-desktop-integration.snapd-desktop-integration" name="/etc/hosts" pid=1221299 comm="snapd-desktop-i" requested_mask="r" denied_mask="r" fsuid=1005 ouid=0
2026-05-27T20:47:43.629417-05:00 localhost kernel: audit: type=1400 audit(1779932863.628:134699): apparmor="DENIED" operation="create" class="net" info="failed af match" error=-13 profile="snap.snapd-desktop-integration.snapd-desktop-integration" pid=1221299 comm="snapd-desktop-i" family="inet" sock_type="dgram" protocol=0 requested="create" denied="create"
2026-05-27T20:47:43.629410-05:00 localhost snapd-desktop-i[1221299]: Failed to do gtk init. Waiting for a new session with desktop capabilities.
2026-05-27T20:47:43.634535-05:00 localhost snapd-desktop-i[1221299]: Checking session /org/freedesktop/login1/session/_32...
2026-05-27T20:47:43.635640-05:00 localhost snapd-desktop-i[1221299]: Checking session /org/freedesktop/login1/session/_37...
2026-05-27T20:47:43.636544-05:00 localhost snapd-desktop-i[1221299]: Checking session /org/freedesktop/login1/session/_36...
2026-05-27T20:47:43.637447-05:00 localhost snapd-desktop-i[1221299]: Checking session /org/freedesktop/login1/session/c1...
2026-05-27T20:47:43.638445-05:00 localhost snapd-desktop-i[1221299]: Checking session /org/freedesktop/login1/session/c5...
2026-05-27T20:47:43.639365-05:00 localhost snapd-desktop-i[1221299]: Is a desktop session! Forcing a reload.

While this question may have similarity in a potential solution, to snapd-desktop-integration syslog spam , the observed log content is different enough that a typical contributor may miss the connection. It's also different because the accepted answer to that question says that question was fixed in 22.04. This was observed in 26.04

I have been using Emacs, Auctex, and SyncTeX, which "enables synchronization between your source document and the PDF output" (which for me has been Evince) for the past 15 years, and it has never failed me.

At that time, I followed the setup synctex with emacs steps, and it has worked since.

SyncTeX is used by Emacs to communicate via dbus to Evince to jump back and forth between the PDF output from pdflatex and the .tex source file in Emacs.

After upgrading to Ubuntu 26.04 LTS (Resolute Racoon), this stopped working.

My command auctex-evince-view fails (in Emacs) with the message

dbus-call-method:
  D-Bus error:
    "org.freedesktop.DBus.Error.ServiceUnknown",
    "The name org.gnome.evince.Daemon was not provided by any .service files"

Among other things, this gets called:

(dbus-call-method :session
                  "org.gnome.evince.Daemon"  ; service
                  "/org/gnome/evince/Daemon" ; path
                  "org.gnome.evince.Daemon"  ; interface
                  "FindDocument"
                  (urlify pdffile)
                  t     ; Open a new window if the file is not opened.
                  )

I have Evince installed:

$ which evince
/usr/bin/evince

Question. How can I get my SyncTeX setup up and running with Ubuntu 26.04?

I use Startup Disk Creator in Ubuntu 24.04 to create a live USB of Ubuntu 26.04 on another PC. Whenever I try this I get the following error:

Could not write the disk image (/home/ik/Downloads/ubuntu-26.04-desktop-amd64.iso) to the device (/dev/sda).

How can I troubleshoot what is going wrong?

This is more a bash scripting question. I'm trying to set a variable from a multiline file in GitHub.

cat config.yaml | gh variable set TEST --org .... --body -

...but this sets the value as '-'

It's the same thing with:

gh variable set TEST --org .... --body - < config.yaml

and this

cat config.yaml | gh variable set TEST --org .... --body '$(cat config.yaml)'

sets the value literally as $(config.yaml)

How can I set the contents of this file in Bash?

I running ubuntu 26.04 that i installed few weeks ago. Since three days ago i always get the firmware uefi dbx update notification (you can see the picture in the link below). As i know, updating a firmware can have some risk if getting failed and i dont have much time to reinstalling ubuntu. Should i update or ignored it? If anyone can explain/suggest i really apreciated, thank you

I have an internal modem (Fibocom L850-GL) in my laptop (HP ZBook 15 G6), and a SIM card. I checked he WANN in Windows (dual boot) and it's okay, but the WWAN refuses to connect in Ubuntu (26.04). It might be obvious, but I did not find the solution... Some help would be highly appreciated.

Here is my provider data for the APN:

• name : Orange World
• APN: orange
• username: orange
• password: orange
• MCC : 208
• MNC : 01
• authentication: pap
• Type of mobile virtual network operator : SPN
• Value of the mobile virtual network operator : Orange F

I'm abroad, and the roaming is activated (at least, should be).

For my WWAN, I created a profile ("Orange Internet") including my provider data but MCC and MNC values are not included in this profile: I don't know if they are compulsory and did not find where to fill them in Ubuntu.

Bellow is the command line result and the logs:

st@ZBook-15-G6:~$ nmcli con up id Orange\ Internet 
Erreur : l'activation de la connexion a échoué : Échec de la sélection de l'APN spécifié
Astuce : utiliser « journalctl -xe NM_CONNECTION=8eb6d626-7bc3-4857-a36e-4d13a8a8f020 + NM_DEVICE=wwan0at1 » pour obtenir plus d'informations.

stephane@ZBook-15-G6:~$ journalctl -b -e NM_DEVICE=wwan0at1 | cat
mai 27 08:20:43 ZBook-15-G6 NetworkManager[2413]: <info>  [1779862843.0722] manager: (wwan0at1): new Broadband device (/org/freedesktop/NetworkManager/Devices/4)
mai 27 08:20:43 ZBook-15-G6 NetworkManager[2413]: <info>  [1779862843.0724] device (wwan0at1): state change: unmanaged -> unavailable (reason 'managed', managed-type: 'external')
mai 27 08:20:43 ZBook-15-G6 NetworkManager[2413]: <warn>  [1779862843.0725] device (wwan0at1): error setting IPv4 forwarding to '0': Succès
mai 27 08:20:43 ZBook-15-G6 NetworkManager[2413]: <info>  [1779862843.0726] device (wwan0at1): modem state 'enabling'
mai 27 08:20:43 ZBook-15-G6 NetworkManager[2413]: <info>  [1779862843.0728] device (wwan0at1): state change: unavailable -> disconnected (reason 'none', managed-type: 'full')
mai 27 08:20:43 ZBook-15-G6 NetworkManager[2413]: <info>  [1779862843.0737] device (wwan0at1): Activation: starting connection 'Orange Internet' (8eb6d626-7bc3-4857-a36e-4d13a8a8f020)
mai 27 08:20:43 ZBook-15-G6 NetworkManager[2413]: <info>  [1779862843.0738] device (wwan0at1): state change: disconnected -> prepare (reason 'none', managed-type: 'full')
mai 27 08:20:43 ZBook-15-G6 NetworkManager[2413]: <info>  [1779862843.0741] device (wwan0at1): state change: prepare -> need-auth (reason 'none', managed-type: 'full')
mai 27 08:20:43 ZBook-15-G6 NetworkManager[2413]: <info>  [1779862843.0747] device (wwan0at1): state change: need-auth -> prepare (reason 'none', managed-type: 'full')
mai 27 08:20:51 ZBook-15-G6 NetworkManager[2413]: <info>  [1779862851.0471] device (wwan0at1): state change: prepare -> failed (reason 'gsm-apn-failed', managed-type: 'full')
mai 27 08:20:51 ZBook-15-G6 NetworkManager[2413]: <warn>  [1779862851.0480] device (wwan0at1): Activation: failed for connection 'Orange Internet'
mai 27 08:20:51 ZBook-15-G6 NetworkManager[2413]: <info>  [1779862851.0484] device (wwan0at1): state change: failed -> disconnected (reason 'none', managed-type: 'full')
mai 27 08:20:51 ZBook-15-G6 NetworkManager[2413]: <warn>  [1779862851.0485] device (wwan0at1): error setting IPv4 forwarding to '0': Succès
mai 27 08:21:24 ZBook-15-G6 NetworkManager[2413]: <info>  [1779862884.6257] device (wwan0at1): Activation: starting connection 'Orange Internet' (8eb6d626-7bc3-4857-a36e-4d13a8a8f020)
mai 27 08:21:24 ZBook-15-G6 NetworkManager[2413]: <info>  [1779862884.6262] device (wwan0at1): state change: disconnected -> prepare (reason 'none', managed-type: 'full')
mai 27 08:21:24 ZBook-15-G6 NetworkManager[2413]: <info>  [1779862884.6274] device (wwan0at1): state change: prepare -> need-auth (reason 'none', managed-type: 'full')
mai 27 08:21:24 ZBook-15-G6 NetworkManager[2413]: <info>  [1779862884.6300] device (wwan0at1): state change: need-auth -> prepare (reason 'none', managed-type: 'full')
mai 27 08:21:32 ZBook-15-G6 NetworkManager[2413]: <info>  [1779862892.0439] device (wwan0at1): state change: prepare -> failed (reason 'gsm-apn-failed', managed-type: 'full')
mai 27 08:21:32 ZBook-15-G6 NetworkManager[2413]: <warn>  [1779862892.0441] device (wwan0at1): Activation: failed for connection 'Orange Internet'
mai 27 08:21:32 ZBook-15-G6 NetworkManager[2413]: <info>  [1779862892.0442] device (wwan0at1): state change: failed -> disconnected (reason 'none', managed-type: 'full')
mai 27 08:21:32 ZBook-15-G6 NetworkManager[2413]: <warn>  [1779862892.0442] device (wwan0at1): error setting IPv4 forwarding to '0': Succès
mai 27 08:21:46 ZBook-15-G6 NetworkManager[2413]: <info>  [1779862906.3717] device (wwan0at1): Activation: starting connection 'Orange Internet' (8eb6d626-7bc3-4857-a36e-4d13a8a8f020)
mai 27 08:21:46 ZBook-15-G6 NetworkManager[2413]: <info>  [1779862906.3718] device (wwan0at1): state change: disconnected -> prepare (reason 'none', managed-type: 'full')
mai 27 08:21:46 ZBook-15-G6 NetworkManager[2413]: <info>  [1779862906.3721] device (wwan0at1): state change: prepare -> need-auth (reason 'none', managed-type: 'full')
mai 27 08:21:46 ZBook-15-G6 NetworkManager[2413]: <info>  [1779862906.3727] device (wwan0at1): state change: need-auth -> prepare (reason 'none', managed-type: 'full')
mai 27 08:21:54 ZBook-15-G6 NetworkManager[2413]: <info>  [1779862914.0491] device (wwan0at1): state change: prepare -> failed (reason 'gsm-apn-failed', managed-type: 'full')
mai 27 08:21:54 ZBook-15-G6 NetworkManager[2413]: <warn>  [1779862914.0505] device (wwan0at1): Activation: failed for connection 'Orange Internet'
mai 27 08:21:54 ZBook-15-G6 NetworkManager[2413]: <info>  [1779862914.0510] device (wwan0at1): state change: failed -> disconnected (reason 'none', managed-type: 'full')
mai 27 08:21:54 ZBook-15-G6 NetworkManager[2413]: <warn>  [1779862914.0511] device (wwan0at1): error setting IPv4 forwarding to '0': Succès

st@ZBook-15-G6:~$ nmcli connection show Orange\ Internet 

connection.id:                          Orange Internet
connection.uuid:                        8eb6d626-7bc3-4857-a36e-4d13a8a8f020
connection.stable-id:                   --
connection.type:                        gsm
connection.interface-name:              wwan0at1
connection.autoconnect:                 oui
connection.autoconnect-priority:        0
connection.autoconnect-retries:         -1 (default)
connection.multi-connect:               0 (default)
connection.auth-retries:                -1
connection.timestamp:                   0
connection.permissions:                 --
connection.zone:                        --
connection.controller:                  --
connection.master:                      --
connection.slave-type:                  --
connection.port-type:                   --
connection.autoconnect-slaves:          -1 (default)
connection.autoconnect-ports:           -1 (default)
connection.down-on-poweroff:            -1 (default)
connection.secondaries:                 --
connection.gateway-ping-timeout:        0
connection.ip-ping-timeout:             0
connection.ip-ping-addresses:           --
connection.ip-ping-addresses-require-all:-1 (default)
connection.metered:                     inconnu
connection.lldp:                        default
connection.mdns:                        -1 (default)
connection.llmnr:                       -1 (default)
connection.dns-over-tls:                -1 (default)
connection.mptcp-flags:                 0x0 (default)
connection.wait-device-timeout:         -1
connection.wait-activation-delay:       -1
ipv4.method:                            auto
ipv4.dns:                               --
ipv4.dns-search:                        --
ipv4.dns-options:                       --
ipv4.dns-priority:                      120
ipv4.addresses:                         --
ipv4.gateway:                           --
ipv4.routes:                            --
ipv4.route-metric:                      1050
ipv4.route-table:                       0 (unspec)
ipv4.routing-rules:                     --
ipv4.replace-local-rule:                -1 (default)
ipv4.dhcp-send-release:                 -1 (default)
ipv4.routed-dns:                        -1 (default)
ipv4.ignore-auto-routes:                non
ipv4.ignore-auto-dns:                   non
ipv4.dhcp-client-id:                    --
ipv4.dhcp-iaid:                         --
ipv4.dhcp-dscp:                         --
ipv4.dhcp-timeout:                      0 (default)
ipv4.dhcp-send-hostname-deprecated:     oui
ipv4.dhcp-send-hostname:                -1 (default)
ipv4.forwarding:                        -1 (default)
ipv4.dhcp-hostname:                     --
ipv4.dhcp-fqdn:                         --
ipv4.dhcp-hostname-flags:               0x0 (none)
ipv4.never-default:                     non
ipv4.may-fail:                          oui
ipv4.required-timeout:                  -1 (default)
ipv4.dad-timeout:                       -1 (default)
ipv4.dhcp-vendor-class-identifier:      --
ipv4.dhcp-ipv6-only-preferred:          -1 (default)
ipv4.link-local:                        0 (default)
ipv4.dhcp-reject-servers:               --
ipv4.auto-route-ext-gw:                 -1 (default)
ipv4.shared-dhcp-range:                 --
ipv4.shared-dhcp-lease-time:            0 (default)
ipv6.method:                            auto
ipv6.dns:                               --
ipv6.dns-search:                        --
ipv6.dns-options:                       --
ipv6.dns-priority:                      0
ipv6.addresses:                         --
ipv6.gateway:                           --
ipv6.routes:                            --
ipv6.route-metric:                      -1
ipv6.route-table:                       0 (unspec)
ipv6.routing-rules:                     --
ipv6.replace-local-rule:                -1 (default)
ipv6.dhcp-send-release:                 -1 (default)
ipv6.routed-dns:                        -1 (default)
ipv6.ignore-auto-routes:                non
ipv6.ignore-auto-dns:                   non
ipv6.never-default:                     non
ipv6.may-fail:                          oui
ipv6.required-timeout:                  -1 (default)
ipv6.ip6-privacy:                       -1 (default)
ipv6.temp-valid-lifetime:               0 (default)
ipv6.temp-preferred-lifetime:           0 (default)
ipv6.addr-gen-mode:                     default
ipv6.ra-timeout:                        0 (default)
ipv6.mtu:                               auto
ipv6.dhcp-pd-hint:                      --
ipv6.dhcp-duid:                         --
ipv6.dhcp-iaid:                         --
ipv6.dhcp-timeout:                      0 (default)
ipv6.dhcp-send-hostname-deprecated:     oui
ipv6.dhcp-send-hostname:                -1 (default)
ipv6.dhcp-hostname:                     --
ipv6.dhcp-hostname-flags:               0x0 (none)
ipv6.auto-route-ext-gw:                 -1 (default)
ipv6.token:                             --
gsm.auto-config:                        non
gsm.number:                             --
gsm.username:                           orange
gsm.password:                           <hidden>
gsm.password-flags:                     0 (aucun)
gsm.apn:                                "orange"
gsm.network-id:                         --
gsm.pin:                                <hidden>
gsm.pin-flags:                          0 (aucun)
gsm.home-only:                          non
gsm.device-id:                          --
gsm.sim-id:                             89330123255811463220
gsm.sim-operator-id:                    --
gsm.mtu:                                auto
gsm.initial-eps-bearer-configure:       oui
gsm.initial-eps-bearer-apn:             orange
gsm.initial-eps-bearer-username:        orange
gsm.initial-eps-bearer-password:        <hidden>
gsm.initial-eps-bearer-password-flags:  0 (aucun)
gsm.initial-eps-bearer-noauth:          non
gsm.initial-eps-bearer-refuse-eap:      oui
gsm.initial-eps-bearer-refuse-pap:      non
gsm.initial-eps-bearer-refuse-chap:     oui
gsm.initial-eps-bearer-refuse-mschap:   oui
gsm.initial-eps-bearer-refuse-mschapv2: oui
proxy.method:                           none
proxy.browser-only:                     non
proxy.pac-url:                          --
proxy.pac-script:                       --

Edit 1: log updated.

Edit 2: After a lot of tests and web search, I found a lot better configuration. Now, the modem connects, but Fiferfox still cannot reach pages. As my provider needs an authentication, I had to include in the bearer that an authentication is needed and then specify username and password and only allowed pap connection. Very important: the APN mustn't be named in the bearer, otherwise, it doesn't connect.

st@ZBook-15-G6:~$ nmcli c add type gsm ifname wwan0at1 con-name Test4 gsm.apn orange gsm.username orange gsm.password orange gsm.initial-eps-bearer-username orange gsm.initial-eps-bearer-password orange gsm.initial-eps-bearer-noauth no gsm.initial-eps-bearer-refuse-eap yes gsm.initial-eps-bearer-refuse-chap yes gsm.initial-eps-bearer-refuse-mschap yes gsm.initial-eps-bearer-refuse-mschapv2 yes
Connexion « Test4 » (fdb43a3d-a956-4347-92ba-a350ddce6b33) ajoutée avec succès.

Then I activated data, roaming and switched on the mobile network in the GUI.

Now, the Modem connects, but internet is still not reachable (tested in Firefox). Remark: nmcli monitor says "limited connection"...

Here are the new logs:

st@ZBook-15-G6:~$ nmcli c show Test4
connection.id:                          Test4
connection.uuid:                        fdb43a3d-a956-4347-92ba-a350ddce6b33
connection.stable-id:                   --
connection.type:                        gsm
connection.interface-name:              wwan0at1
connection.autoconnect:                 oui
connection.autoconnect-priority:        0
connection.autoconnect-retries:         -1 (default)
connection.multi-connect:               0 (default)
connection.auth-retries:                -1
connection.timestamp:                   1779959948
connection.permissions:                 --
connection.zone:                        --
connection.controller:                  --
connection.master:                      --
connection.slave-type:                  --
connection.port-type:                   --
connection.autoconnect-slaves:          -1 (default)
connection.autoconnect-ports:           -1 (default)
connection.down-on-poweroff:            -1 (default)
connection.secondaries:                 --
connection.gateway-ping-timeout:        0
connection.ip-ping-timeout:             0
connection.ip-ping-addresses:           --
connection.ip-ping-addresses-require-all:-1 (default)
connection.metered:                     inconnu
connection.lldp:                        default
connection.mdns:                        -1 (default)
connection.llmnr:                       -1 (default)
connection.dns-over-tls:                -1 (default)
connection.mptcp-flags:                 0x0 (default)
connection.wait-device-timeout:         -1
connection.wait-activation-delay:       -1
ipv4.method:                            auto
ipv4.dns:                               --
ipv4.dns-search:                        --
ipv4.dns-options:                       --
ipv4.dns-priority:                      120
ipv4.addresses:                         --
ipv4.gateway:                           --
ipv4.routes:                            --
ipv4.route-metric:                      1050
ipv4.route-table:                       0 (unspec)
ipv4.routing-rules:                     --
ipv4.replace-local-rule:                -1 (default)
ipv4.dhcp-send-release:                 -1 (default)
ipv4.routed-dns:                        -1 (default)
ipv4.ignore-auto-routes:                non
ipv4.ignore-auto-dns:                   non
ipv4.dhcp-client-id:                    --
ipv4.dhcp-iaid:                         --
ipv4.dhcp-dscp:                         --
ipv4.dhcp-timeout:                      0 (default)
ipv4.dhcp-send-hostname-deprecated:     oui
ipv4.dhcp-send-hostname:                -1 (default)
ipv4.forwarding:                        -1 (default)
ipv4.dhcp-hostname:                     --
ipv4.dhcp-fqdn:                         --
ipv4.dhcp-hostname-flags:               0x0 (none)
ipv4.never-default:                     non
ipv4.may-fail:                          oui
ipv4.required-timeout:                  -1 (default)
ipv4.dad-timeout:                       -1 (default)
ipv4.dhcp-vendor-class-identifier:      --
ipv4.dhcp-ipv6-only-preferred:          -1 (default)
ipv4.link-local:                        0 (default)
ipv4.dhcp-reject-servers:               --
ipv4.auto-route-ext-gw:                 -1 (default)
ipv4.shared-dhcp-range:                 --
ipv4.shared-dhcp-lease-time:            0 (default)
ipv6.method:                            auto
ipv6.dns:                               --
ipv6.dns-search:                        --
ipv6.dns-options:                       --
ipv6.dns-priority:                      0
ipv6.addresses:                         --
ipv6.gateway:                           --
ipv6.routes:                            --
ipv6.route-metric:                      -1
ipv6.route-table:                       0 (unspec)
ipv6.routing-rules:                     --
ipv6.replace-local-rule:                -1 (default)
ipv6.dhcp-send-release:                 -1 (default)
ipv6.routed-dns:                        -1 (default)
ipv6.ignore-auto-routes:                non
ipv6.ignore-auto-dns:                   non
ipv6.never-default:                     non
ipv6.may-fail:                          oui
ipv6.required-timeout:                  -1 (default)
ipv6.ip6-privacy:                       -1 (default)
ipv6.temp-valid-lifetime:               0 (default)
ipv6.temp-preferred-lifetime:           0 (default)
ipv6.addr-gen-mode:                     default
ipv6.ra-timeout:                        0 (default)
ipv6.mtu:                               auto
ipv6.dhcp-pd-hint:                      --
ipv6.dhcp-duid:                         --
ipv6.dhcp-iaid:                         --
ipv6.dhcp-timeout:                      0 (default)
ipv6.dhcp-send-hostname-deprecated:     oui
ipv6.dhcp-send-hostname:                -1 (default)
ipv6.dhcp-hostname:                     --
ipv6.dhcp-hostname-flags:               0x0 (none)
ipv6.auto-route-ext-gw:                 -1 (default)
ipv6.token:                             --
gsm.auto-config:                        non
gsm.number:                             --
gsm.username:                           orange
gsm.password:                           <hidden>
gsm.password-flags:                     0 (aucun)
gsm.apn:                                "orange"
gsm.network-id:                         --
gsm.pin:                                <hidden>
gsm.pin-flags:                          0 (aucun)
gsm.home-only:                          non
gsm.device-id:                          --
gsm.sim-id:                             89330123255811463220
gsm.sim-operator-id:                    --
gsm.mtu:                                auto
gsm.initial-eps-bearer-configure:       non
gsm.initial-eps-bearer-apn:             --
gsm.initial-eps-bearer-username:        orange
gsm.initial-eps-bearer-password:        <hidden>
gsm.initial-eps-bearer-password-flags:  0 (aucun)
gsm.initial-eps-bearer-noauth:          non
gsm.initial-eps-bearer-refuse-eap:      oui
gsm.initial-eps-bearer-refuse-pap:      non
gsm.initial-eps-bearer-refuse-chap:     oui
gsm.initial-eps-bearer-refuse-mschap:   oui
gsm.initial-eps-bearer-refuse-mschapv2: oui
proxy.method:                           none
proxy.browser-only:                     non
proxy.pac-url:                          --
proxy.pac-script:                       --
GENERAL.NAME:                           Test4
GENERAL.UUID:                           fdb43a3d-a956-4347-92ba-a350ddce6b33
GENERAL.DEVICES:                        wwan0at1
GENERAL.IP-IFACE:                       wwan0
GENERAL.STATE:                          activé
GENERAL.DEFAULT:                        oui
GENERAL.DEFAULT6:                       non
GENERAL.SPEC-OBJECT:                    --
GENERAL.VPN:                            non
GENERAL.DBUS-PATH:                      /org/freedesktop/NetworkManager/ActiveConnection/12
GENERAL.CON-PATH:                       /org/freedesktop/NetworkManager/Settings/6
GENERAL.ZONE:                           --
GENERAL.MASTER-PATH:                    --
IP4.ADDRESS[1]:                         10.21.114.71/0
IP4.GATEWAY:                            0.0.0.0
IP4.ROUTE[1]:                           dst = 0.0.0.0/0, nh = 0.0.0.0, mt = 21050
IP6.GATEWAY:                            --
lines 119-151/151 (END)
gsm.mtu:                                auto
gsm.initial-eps-bearer-configure:       non
gsm.initial-eps-bearer-apn:             --
gsm.initial-eps-bearer-username:        orange
gsm.initial-eps-bearer-password:        <hidden>
gsm.initial-eps-bearer-password-flags:  0 (aucun)
gsm.initial-eps-bearer-noauth:          non
gsm.initial-eps-bearer-refuse-eap:      oui
gsm.initial-eps-bearer-refuse-pap:      non
gsm.initial-eps-bearer-refuse-chap:     oui
gsm.initial-eps-bearer-refuse-mschap:   oui
gsm.initial-eps-bearer-refuse-mschapv2: oui
proxy.method:                           none
proxy.browser-only:                     non
proxy.pac-url:                          --
proxy.pac-script:                       --
GENERAL.NAME:                           Test4
GENERAL.UUID:                           fdb43a3d-a956-4347-92ba-a350ddce6b33
GENERAL.DEVICES:                        wwan0at1
GENERAL.IP-IFACE:                       wwan0
GENERAL.STATE:                          activé
GENERAL.DEFAULT:                        oui
GENERAL.DEFAULT6:                       non
GENERAL.SPEC-OBJECT:                    --
GENERAL.VPN:                            non
GENERAL.DBUS-PATH:                      /org/freedesktop/NetworkManager/ActiveConnection/12
GENERAL.CON-PATH:                       /org/freedesktop/NetworkManager/Settings/6
GENERAL.ZONE:                           --
GENERAL.MASTER-PATH:                    --
IP4.ADDRESS[1]:                         10.21.114.71/0
IP4.GATEWAY:                            0.0.0.0
IP4.ROUTE[1]:                           dst = 0.0.0.0/0, nh = 0.0.0.0, mt = 21050
IP6.GATEWAY:                            --

st@ZBook-15-G6:~$ journalctl -xe NM_CONNECTION=f8ee0cf7-1d05-4f03-9b15-f9a6de0de693 + NM_DEVICE=wwan0at1 | cat
mai 28 11:18:57 ZBook-15-G6 NetworkManager[2443]: <info>  [1779959937.7605] device (wwan0at1): Activation: starting connection 'Test4' (fdb43a3d-a956-4347-92ba-a350ddce6b33)
mai 28 11:18:57 ZBook-15-G6 NetworkManager[2443]: <info>  [1779959937.7606] device (wwan0at1): state change: disconnected -> prepare (reason 'none', managed-type: 'full')
mai 28 11:18:57 ZBook-15-G6 NetworkManager[2443]: <info>  [1779959937.7609] device (wwan0at1): state change: prepare -> need-auth (reason 'none', managed-type: 'full')
mai 28 11:18:57 ZBook-15-G6 NetworkManager[2443]: <info>  [1779959937.7615] device (wwan0at1): state change: need-auth -> prepare (reason 'none', managed-type: 'full')
mai 28 11:19:08 ZBook-15-G6 NetworkManager[2443]: <info>  [1779959948.0687] device (wwan0at1): state change: prepare -> config (reason 'none', managed-type: 'full')
mai 28 11:19:08 ZBook-15-G6 NetworkManager[2443]: <info>  [1779959948.0696] device (wwan0at1): state change: config -> ip-config (reason 'none', managed-type: 'full')
mai 28 11:19:08 ZBook-15-G6 NetworkManager[2443]: <warn>  [1779959948.0715] device (wwan0at1): retrieving IP configuration failed: modem IP method unsupported
mai 28 11:19:08 ZBook-15-G6 NetworkManager[2443]: <info>  [1779959948.0737] device (wwan0at1): state change: ip-config -> ip-check (reason 'none', managed-type: 'full')
mai 28 11:19:08 ZBook-15-G6 NetworkManager[2443]: <info>  [1779959948.0975] device (wwan0at1): state change: ip-check -> secondaries (reason 'none', managed-type: 'full')
mai 28 11:19:08 ZBook-15-G6 NetworkManager[2443]: <info>  [1779959948.0976] device (wwan0at1): state change: secondaries -> activated (reason 'none', managed-type: 'full')
mai 28 11:19:08 ZBook-15-G6 NetworkManager[2443]: <info>  [1779959948.0979] device (wwan0at1): Activation: successful, device activated.

st@ZBook-15-G6:~$ journalctl -u ModemManager
mai 28 11:18:57 ZBook-15-G6 ModemManager[2532]: <msg> [modem0] simple connect started...
mai 28 11:18:57 ZBook-15-G6 ModemManager[2532]: <msg> [modem0] simple connect state (6/10): register
mai 28 11:18:57 ZBook-15-G6 ModemManager[2532]: <msg> [modem0] simple connect state (7/10): wait to get packet service state attached
mai 28 11:18:57 ZBook-15-G6 ModemManager[2532]: <msg> [modem0] simple connect state (8/10): bearer
mai 28 11:18:57 ZBook-15-G6 ModemManager[2532]: <msg> [modem0] simple connect state (9/10): connect
mai 28 11:18:57 ZBook-15-G6 ModemManager[2532]: <msg> [modem0] state changed (registered -> connecting)
mai 28 11:19:01 ZBook-15-G6 ModemManager[2532]: <wrn> [modem0/bearer0] connection attempt #10 failed: Serial command timed out
mai 28 11:19:01 ZBook-15-G6 ModemManager[2532]: <msg> [modem0] state changed (connecting -> registered)
mai 28 11:19:01 ZBook-15-G6 ModemManager[2532]: <msg> [modem0/bearer0] connection #10 finished: duration 0s
mai 28 11:19:01 ZBook-15-G6 ModemManager[2532]: <wrn> [modem0] couldn't connect bearer: Serial command timed out
mai 28 11:19:01 ZBook-15-G6 ModemManager[2532]: <msg> [modem0] simple connect started...
mai 28 11:19:01 ZBook-15-G6 ModemManager[2532]: <msg> [modem0] simple connect state (6/10): register
mai 28 11:19:01 ZBook-15-G6 ModemManager[2532]: <msg> [modem0] simple connect state (7/10): wait to get packet service state attached
mai 28 11:19:01 ZBook-15-G6 ModemManager[2532]: <msg> [modem0] simple connect state (8/10): bearer
mai 28 11:19:01 ZBook-15-G6 ModemManager[2532]: <msg> [modem0] simple connect state (9/10): connect
mai 28 11:19:01 ZBook-15-G6 ModemManager[2532]: <msg> [modem0] state changed (registered -> connecting)
mai 28 11:19:04 ZBook-15-G6 ModemManager[2532]: <wrn> [modem0/bearer1] connection attempt #9 failed: Serial command timed out
mai 28 11:19:04 ZBook-15-G6 ModemManager[2532]: <msg> [modem0] state changed (connecting -> registered)
mai 28 11:19:04 ZBook-15-G6 ModemManager[2532]: <msg> [modem0/bearer1] connection #9 finished: duration 0s
mai 28 11:19:04 ZBook-15-G6 ModemManager[2532]: <wrn> [modem0] couldn't connect bearer: Serial command timed out
mai 28 11:19:04 ZBook-15-G6 ModemManager[2532]: <msg> [modem0] simple connect started...
mai 28 11:19:04 ZBook-15-G6 ModemManager[2532]: <msg> [modem0] simple connect state (6/10): register
mai 28 11:19:04 ZBook-15-G6 ModemManager[2532]: <msg> [modem0] simple connect state (7/10): wait to get packet service state attached
mai 28 11:19:04 ZBook-15-G6 ModemManager[2532]: <msg> [modem0] simple connect state (8/10): bearer
mai 28 11:19:04 ZBook-15-G6 ModemManager[2532]: <msg> [modem0] simple connect state (9/10): connect
mai 28 11:19:04 ZBook-15-G6 ModemManager[2532]: <msg> [modem0] state changed (registered -> connecting)
mai 28 11:19:08 ZBook-15-G6 ModemManager[2532]: <msg> [modem0] state changed (connecting -> connected)
mai 28 11:19:08 ZBook-15-G6 ModemManager[2532]: <msg> [modem0] simple connect state (10/10): all done

st@ZBook-15-G6:~$ nmcli monitor
wwan0at1: déconnecté
Le Networlmanager est dans l'état « déconnecté » maintenant
wwan0at1: utilisation de la connection « Test4 »
wwan0at1: connexion (préparation)
Le Networlmanager est dans l'état « connexion » maintenant
wwan0at1: connexion (authentification requise)
wwan0at1: connexion (préparation)
Test4: le profil de connexion a changé
wwan0at1: connexion (configuration)
wwan0at1: connexion (obtention de la configuration IP)
« Test4 » est la connexion primaire.
wwan0at1: connexion (contrôle de la connectivité IP)
wwan0at1: connexion (démarrage des connexions secondaires)
wwan0at1: connecté
Le Networlmanager est dans l'état « connecté (site seulement) » maintenant
La connectivité est « limité » maintenant

====================================

useful tips:

to modify a parameter (for example gsm.initial-eps-bearer-noauth):

nmcli c modify Test5 gsm.initial-eps-bearer-noauth no

to list all profiles:

nmcli con

to delete a profile (for example Test5):

nmcli con delete Test5

I recently upgraded my PI to 26.04 and I have an arduino with radio (MySensors.org) serial gateway that stopped receiving data though it worked ofr years before.

CH341 device may be concerned, though port is here

[    3.650112] usbcore: registered new interface driver usbserial_generic
[    3.650134] usbserial: USB Serial support registered for generic
[    3.654453] usbcore: registered new interface driver ftdi_sio
[    3.654492] usbserial: USB Serial support registered for FTDI USB Serial Device
[    3.654576] ftdi_sio 2-1:1.0: FTDI USB Serial Device converter detected
[    3.654630] usb 2-1: Detected FT232R
[    3.661753] usb 2-1: FTDI USB Serial Device converter now attached to ttyUSB0
...
[    4.823701] usbserial: USB Serial support registered for ch341-uart
[    4.823729] ch341 4-1:1.0: ch341-uart converter detected
[    4.836575] usb 4-1: ch341-uart converter now attached to ttyUSB0

lsusb:
Bus 004 Device 006: ID 1a86:7523 QinHeng Electronics CH340 serial converter

usb-serial-rules:
SUBSYSTEM=="tty", ATTRS{idVendor}=="1a86", ATTRS{idProduct}=="7523",SYMLINK+="ttyUSB23"

lsmod |grep ch341
ch341                  24576  1
usbserial              65536  6 ftdi_sio,ch341

 dmesg|grep ch341
[    3.617532] usbcore: registered new interface driver ch341
[    3.617583] usbserial: USB Serial support registered for ch341-uart
[    3.617633] ch341 4-1:1.0: ch341-uart converter detected
[    3.634225] usb 4-1: ch341-uart converter now attached to ttyUSB0

$ sudo ls -al /dev/ttyUSB0
crw-rw---- 1 root dialout 188, 0 May 27 16:27 /dev/ttyUSB0
$ sudo ls -al /dev/ttyUSB0
crw-rw---- 1 root dialout 188, 0 May 27 16:27 /dev/ttyUSB0
$ udevadm test $(udevadm info -q path -n /dev/ttyUSB0) 2>1 | grep creat
$ udevadm test $(udevadm info -q path -n /dev/ttyUSB23) 2>1 | grep creat

When I launch the device on the Intel ubuntu 24.04 or windows, it works fine as reporting all messages.

After installing Xubuntu on my computer I am unable to connect to wired networks (wifi works without problems). The computer detects that an ethernet cable is connected, however when select the network, it disconnects immediately. (Update: It seems that it tries to connect to the internet repeatedly, however it stays connected only for a moment each time. It is not possible to load any webpage even in the moments when it is connected). I've tried several ethernet cables that worked either with my computer before os reinstallation (with Kubuntu) or with other computers.
Any help would be much appreciated.

Output of journal-ctl and nmcli monitor:

$ journalctl --since "2026-05-26 15:12:20" -eu NetworkManager.service
May 26 15:13:34 armadillidium NetworkManager[1533]: <info>  [1779801214.4202] device (enp1s0): state change: prepare -> config (reason 'none', managed-type: 'full')
May 26 15:13:34 armadillidium NetworkManager[1533]: <info>  [1779801214.4207] device (enp1s0): state change: config -> ip-config (reason 'none', managed-type: 'full')
May 26 15:13:34 armadillidium NetworkManager[1533]: <info>  [1779801214.5921] device (enp1s0): state change: ip-config -> ip-check (reason 'none', managed-type: 'full')
May 26 15:13:34 armadillidium NetworkManager[1533]: <info>  [1779801214.5968] device (enp1s0): state change: ip-check -> secondaries (reason 'none', managed-type: 'full')
May 26 15:13:34 armadillidium NetworkManager[1533]: <info>  [1779801214.5972] device (enp1s0): state change: secondaries -> activated (reason 'none', managed-type: 'full')
May 26 15:13:34 armadillidium NetworkManager[1533]: <info>  [1779801214.5981] manager: NetworkManager state is now CONNECTED_LOCAL
May 26 15:13:34 armadillidium NetworkManager[1533]: <info>  [1779801214.5988] device (enp1s0): Activation: successful, device activated.
May 26 15:13:36 armadillidium NetworkManager[1533]: <info>  [1779801216.2985] device (enp1s0): state change: activated -> deactivating (reason 'new-activation', managed-type: 'fu>
May 26 15:13:36 armadillidium NetworkManager[1533]: <info>  [1779801216.2990] manager: NetworkManager state is now DISCONNECTING
May 26 15:13:36 armadillidium NetworkManager[1533]: <info>  [1779801216.3028] device (enp1s0): disconnecting for new activation request.
May 26 15:13:36 armadillidium NetworkManager[1533]: <info>  [1779801216.3037] audit: op="connection-activate" uuid="cac41fbe-bc18-3d87-bba7-af2af7f8ffab" name="netplan-enp1s0" pi>
May 26 15:13:36 armadillidium NetworkManager[1533]: <info>  [1779801216.3323] device (enp1s0): state change: deactivating -> disconnected (reason 'new-activation', managed-type: >
May 26 15:13:36 armadillidium NetworkManager[1533]: <info>  [1779801216.3458] manager: NetworkManager state is now DISCONNECTED
May 26 15:13:36 armadillidium NetworkManager[1533]: <info>  [1779801216.3459] device (enp1s0): Activation: starting connection 'netplan-enp1s0' (cac41fbe-bc18-3d87-bba7-af2af7f8f>
May 26 15:13:36 armadillidium NetworkManager[1533]: <info>  [1779801216.3476] device (enp1s0): state change: disconnected -> prepare (reason 'none', managed-type: 'full')
May 26 15:13:36 armadillidium NetworkManager[1533]: <info>  [1779801216.3479] manager: NetworkManager state is now CONNECTING
May 26 15:13:36 armadillidium NetworkManager[1533]: <info>  [1779801216.3480] device (enp1s0): state change: prepare -> config (reason 'none', managed-type: 'full')
May 26 15:13:36 armadillidium NetworkManager[1533]: <info>  [1779801216.3486] device (enp1s0): state change: config -> ip-config (reason 'none', managed-type: 'full')
May 26 15:13:36 armadillidium NetworkManager[1533]: <info>  [1779801216.4910] device (enp1s0): state change: ip-config -> ip-check (reason 'none', managed-type: 'full')
May 26 15:13:36 armadillidium NetworkManager[1533]: <info>  [1779801216.4954] device (enp1s0): state change: ip-check -> secondaries (reason 'none', managed-type: 'full')
May 26 15:13:36 armadillidium NetworkManager[1533]: <info>  [1779801216.4959] device (enp1s0): state change: secondaries -> activated (reason 'none', managed-type: 'full')
May 26 15:13:36 armadillidium NetworkManager[1533]: <info>  [1779801216.4969] manager: NetworkManager state is now CONNECTED_LOCAL
May 26 15:13:36 armadillidium NetworkManager[1533]: <info>  [1779801216.4976] device (enp1s0): Activation: successful, device activated.

$ nmcli monitor
NetworkManager is running
lo: unavailable
enp1s0: unavailable
wlp2s0: unavailable
p2p-dev-wlp2s0: unavailable
Networkmanager is now in the 'disconnected' state
lo: disconnected
lo: connecting (prepare)
lo: connecting (configuring)
lo: connecting (getting IP configuration)
lo: connecting (checking IP connectivity)
lo: using connection 'lo'
lo: connection profile created
lo: connecting (externally)
lo: connected (externally)
enp1s0: disconnected
enp1s0: using connection 'netplan-enp1s0'
enp1s0: connecting (prepare)
Networkmanager is now in the 'connecting' state
enp1s0: connecting (configuring)
enp1s0: connecting (getting IP configuration)
enp1s0: connecting (checking IP connectivity)
enp1s0: connecting (starting secondary connections)
enp1s0: connected
Networkmanager is now in the 'connected (local only)' state
Connectivity is now 'limited'

Output of other nmcli commands showing switching between connected and disconnected state:

$ nmcli general
STATE                   CONNECTIVITY  WIFI-HW  WIFI      WWAN-HW  WWAN     METERED 
connected (local only)  limited       enabled  disabled  missing  enabled  unknown 
$ nmcli networking connectivity 
limited
$ nmcli general
STATE         CONNECTIVITY  WIFI-HW  WIFI      WWAN-HW  WWAN     METERED 
disconnected  none          enabled  disabled  missing  enabled  unknown 
$ nmcli networking connectivity 
none

Netplan configuration files:

total 40
drwxr-xr-x   2 root root  4096 May 26 11:13 .
drwxr-xr-x 157 root root 12288 May 24 19:40 ..
-rw-------   1 root root   185 May 23 20:39 00-installer-config.yaml
-rw-------   1 root root   104 Apr 23 03:18 01-network-manager-all.yaml
-rw-------   1 root root   714 May 23 20:04 90-NM-a2459b54-6a73-4f84-8e8e-80df6bf5e905.yaml
-rw-------   1 root root   804 May 24 10:30 90-NM-c253d5d5-300e-49e7-970e-5575d1ed9840.yaml
-rw-------   1 root root   691 May 25 12:15 90-NM-c651a76f-6131-4409-bda8-29bf854c2434.yaml
-rw-------   1 root root   436 May 25 16:05 90-NM-cac41fbe-bc18-3d87-bba7-af2af7f8ffab.yaml
$ sudo cat /etc/netplan/*yaml               
# This is the network config written by 'subiquity'
network:
  ethernets:
    enp1s0:
      match:
        macaddress: 9c:5a:44:76:d9:07
      set-name: enp1s0
  version: 2
  wifis: {}
# Let NetworkManager manage all devices on this system
network:
  version: 2
  renderer: NetworkManager
network:
  version: 2
  wifis:
    NM-a2459b54-6a73-4f84-8e8e-80df6bf5e905:
      renderer: NetworkManager
      match:
        name: "wlp2s0"
      dhcp4: true
      dhcp6: true
      access-points:
        "Fluonet_5Ghz":
          auth:
            key-management: "psk"
            password: "xxx"
          networkmanager:
            uuid: "a2459b54-6a73-4f84-8e8e-80df6bf5e905"
            name: "Fluonet_5Ghz"
            passthrough:
              wifi-security.auth-alg: "open"
              ipv6.addr-gen-mode: "default"
              ipv6.ip6-privacy: "-1"
              proxy._: ""
      networkmanager:
        uuid: "a2459b54-6a73-4f84-8e8e-80df6bf5e905"
        name: "Fluonet_5Ghz"
network:
  version: 2
  wifis:
    NM-c253d5d5-300e-49e7-970e-5575d1ed9840:
      renderer: NetworkManager
      match:
        name: "wlp2s0"
      dhcp4: true
      dhcp6: true
      access-points:
        "eduroam":
          auth:
            key-management: "eap"
            method: "ttls"
            identity: "25742336@natur.cuni.cz"
            phase2-auth: "mschapv2"
            password: "xxx"
          networkmanager:
            uuid: "c253d5d5-300e-49e7-970e-5575d1ed9840"
            name: "eduroam"
            passthrough:
              wifi-security.auth-alg: "open"
              ipv6.addr-gen-mode: "default"
              ipv6.ip6-privacy: "-1"
              proxy._: ""
      networkmanager:
        uuid: "c253d5d5-300e-49e7-970e-5575d1ed9840"
        name: "eduroam"
network:
  version: 2
  wifis:
    NM-c651a76f-6131-4409-bda8-29bf854c2434:
      renderer: NetworkManager
      match:
        name: "wlp2s0"
      dhcp4: true
      dhcp6: true
      access-points:
        "Octopus":
          auth:
            key-management: "psk"
            password: "xxx"
          networkmanager:
            uuid: "c651a76f-6131-4409-bda8-29bf854c2434"
            name: "Octopus"
            passthrough:
              wifi-security.auth-alg: "open"
              ipv6.addr-gen-mode: "default"
              ipv6.ip6-privacy: "-1"
              proxy._: ""
      networkmanager:
        uuid: "c651a76f-6131-4409-bda8-29bf854c2434"
        name: "Octopus"
network:
  version: 2
  ethernets:
    enp1s0:
      renderer: NetworkManager
      match: {}
      macaddress: "preserve"
      ipv6-address-generation: "stable-privacy"
      networkmanager:
        uuid: "cac41fbe-bc18-3d87-bba7-af2af7f8ffab"
        name: "netplan-enp1s0"
        passthrough:
          connection.timestamp: "1779717841"
          ipv4.dhcp-send-hostname: "1"
          ipv6.method: "ignore"
          proxy._: ""

I am trying to install Ubuntu onto an older Dell laptop using a freshly flashed and validated SanDisk USB 3.0 drive (flashed via balenaEtcher).

The boot sequence starts up fine, but it completely freezes every single time right after reading the very last APT cache repository line: Get:5 file:/cdrom resolute/main amd64 Packages [31.7 kB]

I tried:

• Replaced the USB drive entirely (originally used a generic UDisk which threw I/O buffer errors, switched to a brand new SanDisk 16GB).

• Removed quiet splash from the GRUB menu to view the verbose terminal logs.

• Tried booting with nomodeset (Safe Graphics mode).

• Tried appending various combinations of boot flags like acpi=off, noapic, and irqpoll.

The logs:

Right before it hits the Get:5 line and hangs, the logs show a couple of errors regarding the communication bus and filesystem:

fuse: device /dev/fuse not found. Kernel module not loaded?
dbus-daemon: A connection to the bus can't be made
Failed to create stream fd: No such file or directory

This is the terminal output right at the freezing point. Since it is stalling the exact millisecond it finishes loading the configuration files and tries to hand over control to the display manager/graphics, I suspect it's a legacy hardware or kernel conflict with this specific Dell motherboard architecture.

Begin: Creating debconf-communicate fifo mechanism ... [    6.216597] evm: overlay not supported
done.
Begin: Running /scripts/casper-bottom ... Begin: Moving mount points... ... done.
Begin: Configuring fstab... ... done.
Begin: Setting up swap... ... done.
Begin: Setting up locales... ... done.
Begin: Setting up automatic login... ... done.
Begin: Setting hostname... ... done.
Begin: Setting up console keyboard... ... done.
Begin: Applying desktop settings... ... done.
Begin: Regenerating SSL certificate... ... hostname: Name or service not known
make-ssl-cert: Could not get FQDN, using '(none)'.
make-ssl-cert: You may want to fix your /etc/hosts and/or DNS setup and run
make-ssl-cert: 'make-ssl-cert generate-default-snakeoil --force-overwrite'
make-ssl-cert: again.
done.
Begin: Loading preseed file... ... done.
Begin: Adding live session user... ... passwd: password changed.
Failed to create stream fd: No such file or directory
Failed to create stream fd: No such file or directory
Failed to create stream fd: No such file or directory
dbus-daemon[723]: [session uid=1000 pid=18446744073709551615 pidfd=5] Activating service name='org.gtk.vfs.Daemon' re
dbus-daemon[723]: [session uid=1000 pid=18446744073709551615 pidfd=5] Successfully activated service 'org.gtk.vfs.Daemon'
dbus-daemon[723]: [session uid=1000 pid=18446744073709551615 pidfd=5] Activating service name='org.gtk.vfs.Metadata' re
fuse: device /dev/fuse not found. Kernel module not loaded?
dbus-daemon[723]: [session uid=1000 pid=18446744073709551615 pidfd=5] Successfully activated service 'org.gtk.vfs.Meta
A connection to the bus can't be made
done.
Begin: Setting up init... ... done.
Begin: Configuring accessibility options... ... done.
Begin: Disabling update-notifier... ... done.
Begin: Enabling detection of crashes... ... done.
Begin: Disabling unnecessary KDE services... ... done.
Begin: Disabling the lock screen for LXQt (LP: #2000787)... ... done.
Begin: Generating APT cache for cdrom... ... Ign:1 file:/cdrom resolute InRelease
Get:2 file:/cdrom resolute Release [664 B]
Get:2 file:/cdrom resolute Release [664 B]
Get:3 file:/cdrom resolute Release.gpg [228 B]
Get:3 file:/cdrom resolute Release.gpg [228 B]
Get:4 file:/cdrom resolute/restricted amd64 Packages [14.5 kB]
Get:5 file:/cdrom resolute/main amd64 Packages [31.7 kB]

Do you have any advice on what specific kernel boot parameters or BIOS tweaks I need to use to force it past this graphical handshake?

Lately kde discover has been verry laggy particularly when clicking the installed apps tab or when fetching updates or hovering on an app from recomends too early

[EDIT] After restoring with timeshift, screenshots in discover are ok But discover still lags...here are the logs from my original troubleshoot anyway:

looking up wrong category or too early "Development"  
org.kde.plasma.libdiscover: CategoriesReader: Load categories from file "/usr/share/libdiscover/categories/flatpak-backend-categories.xml" with l10n true  
org.kde.plasma.libdiscover: CategoriesReader: Couldn't find a category for "fwupd-backend"  
org.kde.plasma.libdiscover: CategoriesReader: Load categories from file "/usr/share/libdiscover/categories/packagekit-backend-categories.xml" with l10n true  
org.kde.plasma.libdiscover: CategoriesReader: Couldn't find a category for "snap-backend"  
qt.qpa.services: Failed to register with host portal QDBusError("org.freedesktop.portal.Error.Failed", "Could not register app ID: Connection already associated with an application ID")  
PackageKitBackend: No distro component found for "com.ubuntu.ubuntu"  
fwupd: Device not supported: UEFI dbx No releases found  
AppStreamIntegration: No distro component found for "com.ubuntu.ubuntu"  
qrc:/qt/qml/org/kde/discover/qml/ApplicationPage.qml:19:1: QML ApplicationPage: Created graphical object was not placed in the graphics scene.  
qrc:/qt/qml/org/kde/discover/qml/ApplicationPage.qml:116:5: QML ReviewsPage: Binding loop detected for property "implicitHeight":  
qrc:/qt/qml/org/kde/kirigami/templates/OverlaySheet.qml:139:5  
qrc:/qt/qml/org/kde/discover/qml/ApplicationPage.qml:116:5: QML ReviewsPage: Binding loop detected for property "y":  
qrc:/qt/qml/org/kde/kirigami/templates/OverlaySheet.qml:117:5  
qrc:/qt/qml/org/kde/discover/qml/ApplicationPage.qml:116:5: QML ReviewsPage: Binding loop detected for property "implicitHeight":  
qrc:/qt/qml/org/kde/kirigami/templates/OverlaySheet.qml:139:5  
qrc:/qt/qml/org/kde/discover/qml/ApplicationPage.qml:923:5: QML AddonsView: Binding loop detected for property "implicitHeight":  
qrc:/qt/qml/org/kde/kirigami/templates/OverlaySheet.qml:139:5  
qrc:/qt/qml/org/kde/discover/qml/ApplicationPage.qml:923:5: QML AddonsView: Binding loop detected for property "y":  
qrc:/qt/qml/org/kde/kirigami/templates/OverlaySheet.qml:117:5  
qrc:/qt/qml/org/kde/discover/qml/ApplicationPage.qml:116:5: QML ReviewsPage: Binding loop detected for property "y":  
qrc:/qt/qml/org/kde/kirigami/templates/OverlaySheet.qml:117:5  
qrc:/qt/qml/org/kde/discover/qml/ApplicationPage.qml:116:5: QML ReviewsPage: Binding loop detected for property "implicitHeight":  
qrc:/qt/qml/org/kde/kirigami/templates/OverlaySheet.qml:139:5  
qrc:/qt/qml/org/kde/discover/qml/ApplicationPage.qml:923:5: QML AddonsView: Binding loop detected for property "implicitHeight":  
qrc:/qt/qml/org/kde/kirigami/templates/OverlaySheet.qml:139:5  
qrc:/qt/qml/org/kde/kirigami/controls/private/PrivateActionToolButton.qml:74:5: QML Binding: Binding loop detected for property "value":  
qrc:/qt/qml/org/kde/kirigami/controls/private/PrivateActionToolButton.qml:77:9  
qrc:/qt/qml/org/kde/discover/qml/CarouselDelegate.qml:161:33: QML QQuickImage: SSL handshake failed: The certificate has expired  
qrc:/qt/qml/org/kde/discover/qml/CarouselDelegate.qml:161:33: QML QQuickImage: SSL handshake failed: The certificate has expired  
qrc:/qt/qml/org/kde/discover/qml/CarouselDelegate.qml:161:33: QML QQuickImage: SSL handshake failed: The certificate has expired  
qrc:/qt/qml/org/kde/discover/qml/CarouselDelegate.qml:184:33: QML QQuickImage: SSL handshake failed: The certificate has expired  
qrc:/qt/qml/org/kde/discover/qml/CarouselDelegate.qml:184:33: QML QQuickImage: SSL handshake failed: The certificate has expired  
qrc:/qt/qml/org/kde/discover/qml/CarouselDelegate.qml:184:33: QML QQuickImage: SSL handshake failed: The certificate has expired  
org.kde.plasma.libdiscover: reviews arrived... 0 861

[EDIT] Theese steps I took back then trying to fix the lag actually where the ones that broke discover screenshots:

sudo rm -rf /var/cache/appstream/*
  851  clear
  852  sudo apt update --fix-missing
  853  sudo appstreamcli refresh --force
  854  sudo pkill -f packagekitd
  855  sudo rm -rf /var/cache/PackageKit/*
  856  pkcon refresh force
  857  rm -rf ~/.cache/discover
  858  rm -rf ~/.cache/PackageKit
  859  sudo appstreamcli refresh --force
  860  sudo apt install packagekit packagekit-tools plasma-discover-backend-packageki
  861  sudo apt install packagekit packagekit-tools plasma-discover-backend-packagekit
  867 sudo apt update
  868  sudo apt install --reinstall appstream appstream-q

I have to note that it was always that slow on installed tab from possibly the day I upgraded but most of my attempts didnt work

I am on an Dell machine with Ubuntu 24.04

To try fixing an error on a software I mistakenly changed a /lib/x86_64-linux-gnu/libgfortran.so.3 with a version that was probably incompatible with the system. The machine immediately froze and cannot reboot. I tried rebooting with a USB live (hitting Fn+F12 at the Dell logo) but I get a bunch of errors like those in the I am unsure how I should proceed?

I’m using the latest EA Trial version on Kubuntu (via Wine) and connecting to a PostgreSQL repository.

In the Notes window I’m experiencing an incorrect rendering of bullet lists:

instead of standard bullet points, EA displays a wide left bracket character (not normal < ). Probably one of this one

• „〈“ – LEFT ANGLE BRACKET | Unicode: U+3008
• „⟨“ – MATHEMATICAL LEFT ANGLE BRACKET | Unicode: U+27E8
• „❬“ – MEDIUM LEFT-POINTING ANGLE BRACKET | Unicode: U+276C
• „❮“ – HEAVY LEFT-POINTING ANGLE QUOTATION ``MARK | Unicode: U+276E

In the database table t_object → notes, the content is stored correctly as:

<ul>
<li>Row</li>
<li>Row</li>
</ul>

It seems to be some HTML rendering bug inside Note area.

Can someone help me to solve it?

Can someone confirm that on Linux is possible to solve it

I am trying to get my Netgear Nighthawk A7500 Wi-Fi adapter (AX1800) to work with my Ubuntu 24.04. I have tried the steps in these links but failed:

• Install driver rtl8814au on ubuntu 18.04
• Fix for wireless issues with netgear a7000 usb adapter (rtl8814au, rtl8812au)
• https://www.reddit.com/r/linuxquestions/comments/1dfuz25/trying_to_use_the_a7500_nighthawk_wifi_adapter/

I also git cloned a few repositories and installed the following dkms (and rebooted several times after installing/loading):

8812au/5.6.4.2_35491.20191025, 6.11.0-26-generic, x86_64: installed (WARNING! Diff between built and installed module!)
nvidia/570.133.07, 6.11.0-26-generic, x86_64: installed
nvidia/570.133.07, 6.8.0-60-generic, x86_64: installed
realtek-rtl8814au/5.8.5.1~git20240527.d8208c8, 6.11.0-26-generic, x86_64: installed
realtek-rtl88xxau/5.6.4.2~git20240726.63cf0b4, 6.11.0-26-generic, x86_64: installed
rtl8812au/4.3.8.12175.20140902+dfsg, 6.11.0-26-generic, x86_64: installed
rtl88x2bu/git, 6.11.0-26-generic, x86_64: installed
rtw88/0.6, 6.11.0-26-generic, x86_64: installed

I installed rtw88 because this github page /rtl8812au (already deprecated) lead me to it. lsmod | grep -i "rtw\|88" returns the following:

mac_hid                12288  0
rtw_8812au             12288  0
rtw_8812a              57344  1 rtw_8812au
rtw_88xxa              45056  1 rtw_8812a
rtw_8814au             12288  0
rtw_8814a             258048  1 rtw_8814au
rtw_usb                28672  2 rtw_8814au,rtw_8812au
rtw_core              344064  4 rtw_88xxa,rtw_usb,rtw_8814a,rtw_8812a
mac80211             1777664  2 rtw_usb,rtw_core
cfg80211             1384448  2 rtw_core,mac80211
libarc4                12288  1 mac80211

The only dmesg logs that came out from rtw_88 were:

[    2.720054] rtw_core: loading out-of-tree module taints kernel.
[    2.720057] rtw_core: module verification failed: signature and/or required key missing - tainting kernel
[    2.724954] usbcore: registered new interface driver rtw_8814au
[    2.740234] usbcore: registered new interface driver rtw_8812au

And my desktop doesn't have secure boot enabled. The last few entries of lsusb shows the Wi-Fi USB adapter attached:

Bus 005 Device 006: ID 0bda:1100 Realtek Semiconductor Corp. HID Device
Bus 006 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 006 Device 002: ID 0846:9065 NetGear, Inc. Wireless_Device
Bus 006 Device 003: ID 0bda:0409 Realtek Semiconductor Corp. USB3.2 Hub

But nmcli device wifi list returns nothing while iwconfig always returns the following (even after rebooting):

lo        no wireless extensions.

enp4s0    no wireless extensions.

Is it possible to get this adapter to work? I see a few people claiming they got it working (albeit with lower speeds/bandwidth, which I'm fine with), but the installation steps they used doesn't seem to work on my system.

I am using Ubuntu 22.04. The feature still worked fine until I installed the Nvidia drivers (not sure if it is the main reason). After the installation, I cannot use Super+Scroll mouse to switch workspaces, Although it is still available with Super+PageUp or PageDown Is there any way to bring this feature back? Thanks a lot

EDIT: I have found out the problem and it definitely comes from Nvdia driver. I have removed the drivers and it work fine. However, I still want the solution to use this feature along with nvidia drivers. Thanks a lot

I have HP AMD Ryzen 7 laptop and recently installed a dual boot mode of Windows 10 and Ubuntu 20.04. Most of the time I'm using Ubuntu. Nowadays I'm getting an ACPI Bios Error during GRUB booting and restarting again and again. I selected Advanced option for Ubuntu listed in GNU GRUB menu updated GRUB_CMDLINE_LINUX_DEFAULT="intremap=off" in /etc/default/grub and rebooted my system. Now I can login to my Ubuntu operating system, but each and every time I'm performing this when I restart my system which is very much annoying. Is there any permanent solution for this ACPI Boot error?

ACPI BIOS Error(bug): Failure creating named object [ \_SB.PCIO.GPPO.VGA], AE_ALREADY EXISTS(20210730/dswload2-326) \n
ACPI Error:AE_ALREADT_EXISTS,During name lookup/catalog (20210730/psobject-220) \n
ACPI BIOS Error(bug): Failure creating named object [ \_SB.PCIO.GPPO.VGA], AE_ALREADY EXISTS(20210730/dswload2-326)
ACPI Error:AE_ALREADT_EXISTS,During name lookup/catalog (20210730/psobject-220)
/dev/nvme0n1p8:recovering journal
/dev/nvme0n1p8:clean,275312/9945088 file....................*

I have a system where I would like to create a full system backup. The backup should include all system settings, drivers, user data, etc. on the system storage drive. The backup should be usable to restore the system drive for that specific PC, after exchaning the physical storage device, once the system drive crashes.

There is the situation, that I only have remote ssh access to create the backup. For restoring, I obviously have to (and can) get to the PC physically (to replace the drive, etc.). In additon, the PC doesnt have direct access to the internet. I connect via internet to a jump host and have ethernet access from there to the PC.

With physical access I would boot the PC via a ventoy bootstick, to boot to a gparted live system and use dd to clone the system partitions to some image files. But this isn't possible by remote access.

Is there any alternative? e.g.: Is it possible to use backup strategies like

tar -cvpzf /backup.tar.gz --exclude=/backup.tar.gz --one-file-system

or https://help.ubuntu.com/community/BackupYourSystem/TAR

or is this not suitable in my case? Or is this not possible or maybe not complete enough?

I could remotely move the backup from that PC to a NAS or to the jump host and download it from there (or directly generat the backup to the NAS), so it is really about how to generate a suitable backup and not about how to make sure that the backup file is preserved when the system crashes. And also I will be able to reduce the used disk space to less than 30% before creating the backup, if the current 48% is too close to > 50% (which could prevent any strategies that store the backup on the drive itself).

These are the relevant partitions:

/dev/sdf1        2048    1050623    1048576  512M EFI-System
/dev/sdf2     1050624 3705751551 3704700928  1,7T Linux-Dateisystem
/dev/sdf3  3705751552 3750748159   44996608 21,5G Microsoft Basisdaten
sdf  
16,4T root  disk  brw-rw----
├─sdf1 vfat                  B687-437E                            /boot/efi                                          
512M root  disk  brw-rw----
├─sdf2 ext4                  56aaa632-d318-4ca9-8094-f803b2237e44 /media/sdf2                                    
1,7T root  disk  brw-rw----
└─sdf3 vfat                  30A8-C177                                                                          
21,5G root  disk  brw-rw----
/dev/sdf2                       1822227568  817873716   911719948   48% /
/dev/sdf1                           523244       5360      517884    2% /boot/efi

I recently installed Ubuntu 20.04. Considering the time that passed since its release I thought it would be stable. After installing it, I go to Snap Store (named Ubuntu Software) and I see that several new programs appear, but after a few moments, only the editor picks show, nothing else.

I try to install PyCharm through the command line with snap, sudo snap install pycharm-community --classic but it gives me this error: x509: certificate signed by unknown authority.

Afterwards, I decide to purge snap store and reinstall it, and after running these 2 commands: sudo apt-get update,sudo apt install snapd, I enter this one sudo snap install snap-store and gives me again, the same error with the certificates.

I got no idea whats going on. I installed it from 0

Edit 1:
Output of snap list:

No snaps are installed yet. Try 'snap install hello-world'.

Output of sudo snap install snap-store:

error: cannot install "snap-store": Post
       https://api.snapcraft.io/v2/snaps/refresh: x509: certificate signed by
       unknown authority

I am on an university network, so naturally I use a proxy. I have set the proxy appropriately in /etc/environment, but no matter what I do there's always this error:

https://api.snapcraft.io/v2/snaps/refresh: proxyconnect tcp: tls:
   oversized record received with length 20527

I have restarted, reset, removed and reinstalled snap, but time and again there's no solution. The past solutions are no help, and anything I do doesn't change the error messages. Is the Snap Store really unusable in a proxy?

I changed a few things, and now I get a different error:

https://api.snapcraft.io/v2/snaps/refresh: Proxy Authentication Required

This is really frustrating because wherever I use proxy, I use the format:

username:password@host:port

whether it is /etc/environment, ~/.bashrc or /etc/apt/apt.conf. I have no problem in connectivity via apt, and wget works fine too. It's snap that puzzles me.

I tried to install midori using this answer:

Open terminal by pressing Ctrl+Alt+T and run the following commands,

sudo apt-add-repository ppa:midori/ppa
sudo apt-get update
sudo apt-get install midori

but I got following error:

E: Package 'midori' has no installation candidate

I am trying to install oci8 using "pecl install oci8" command but getting error as -

fatal error: zend_smart_str.h: No such file or directory
 #include "zend_smart_str.h"

following are my system details - 1.ubuntu 14.04 2.php 7.0.17-2+deb.sury.org~trusty+1

steps I followed -

1. download instantclient-basic-linux-12.2.0.1.0.zip

2. download instantclient-sdk-linux.x64-12.2.0.1.0.zip

3. create dir in /opt/oracle
4. extract both zip files
5. run pecl install oci8 command

Outout -

/bin/bash /tmp/oci8-2.1.4/libtool --mode=compile cc  -I. -I/tmp/oci8-2.1.4 -DPHP_ATOM_INC -I/tmp/oci8-2.1.4/include -I/tmp/oci8-2.1.4/main -I/tmp/oci8-2.1.4 -I/usr/include/php5 -I/usr/include/php5/main -I/usr/include/php5/TSRM -I/usr/include/php5/Zend -I/usr/include/php5/ext -I/usr/include/php5/ext/date/lib -I/opt/oracle/instantclient_12_2/sdk/include  -DHAVE_CONFIG_H  -g -O2   -c /tmp/oci8-2.1.4/oci8.c -o oci8.lo 
libtool: compile:  cc -I. -I/tmp/oci8-2.1.4 -DPHP_ATOM_INC -I/tmp/oci8-2.1.4/include -I/tmp/oci8-2.1.4/main -I/tmp/oci8-2.1.4 -I/usr/include/php5 -I/usr/include/php5/main -I/usr/include/php5/TSRM -I/usr/include/php5/Zend -I/usr/include/php5/ext -I/usr/include/php5/ext/date/lib -I/opt/oracle/instantclient_12_2/sdk/include -DHAVE_CONFIG_H -g -O2 -c /tmp/oci8-2.1.4/oci8.c  -fPIC -DPIC -o .libs/oci8.o
/tmp/oci8-2.1.4/oci8.c:36:28: fatal error: zend_smart_str.h: No such file or directory
 #include "zend_smart_str.h"
                            ^
compilation terminated.
make: *** [oci8.lo] Error 1

Please help!! Thanks much.

I've got a mail with eml file attached. I'm using Thunderbird but it doesn't open it.

Could anybody suggest program to open eml files?

Update:

I don't want to import my mailbox I want only read the content of eml file.