sudo apt update
Ign:1 file:/cdrom resolute InRelease
Err:2 file:/cdrom resolute Release
  File not found - /cdrom/dists/resolute/Release (2: No such file or directory)
Hit:3 http://id.archive.ubuntu.com/ubuntu resolute InRelease
Hit:4 http://id.archive.ubuntu.com/ubuntu resolute-updates InRelease
Hit:5 http://id.archive.ubuntu.com/ubuntu resolute-backports InRelease
Get:6 http://security.ubuntu.com/ubuntu resolute-security InRelease [136 kB]
Error: The repository 'file:/cdrom resolute Release' no longer has a Release file.
Notice: Updating from such a repository can't be done securely, and is therefore disabled by default.
Notice: See apt-secure(8) manpage for repository creation and user configuration details.

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.

st@ZBook-15-G6:~$ journalctl -xe NM_CONNECTION=8eb6d626-7bc3-4857-a36e-4d13a8a8f020 + NM_DEVICE=wwan0at1
mai 27 00:54:34 ZBook-15-G6 NetworkManager[2427]: <info>  [1779836074.2947] device (wwan0at1): Activation: starting connection 'Orange Internet' (8eb6d626-7bc3-4857-a>
mai 27 00:54:34 ZBook-15-G6 NetworkManager[2427]: <info>  [1779836074.2948] device (wwan0at1): state change: disconnected -> prepare (reason 'none', managed-type: 'fu>
mai 27 00:54:34 ZBook-15-G6 NetworkManager[2427]: <info>  [1779836074.2950] device (wwan0at1): state change: prepare -> need-auth (reason 'none', managed-type: 'full')
mai 27 00:54:34 ZBook-15-G6 NetworkManager[2427]: <info>  [1779836074.2957] device (wwan0at1): state change: need-auth -> prepare (reason 'none', managed-type: 'full')
mai 27 00:54:42 ZBook-15-G6 NetworkManager[2427]: <warn>  [1779836082.0621] modem-broadband[wwan0at1]: failed to set initial EPS bearer settings: GDBus.Error:org.free>
mai 27 00:54:42 ZBook-15-G6 NetworkManager[2427]: <info>  [1779836082.0622] device (wwan0at1): state change: prepare -> failed (reason 'gsm-apn-failed', managed-type:>
mai 27 00:54:42 ZBook-15-G6 NetworkManager[2427]: <warn>  [1779836082.0628] device (wwan0at1): Activation: failed for connection 'Orange Internet'
mai 27 00:54:42 ZBook-15-G6 NetworkManager[2427]: <info>  [1779836082.0631] device (wwan0at1): state change: failed -> disconnected (reason 'none', managed-type: 'ful>
mai 27 00:54:42 ZBook-15-G6 NetworkManager[2427]: <warn>  [1779836082.0632] device (wwan0at1): error setting IPv4 forwarding to '0': Argument invalide

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:                       --

I'm brand new to linux and I've installed ubuntu V26.04 (I think) on an old laptop (finally got it to work!).

My question is I've installed Tor browser and have tried to download a file but as soon as the save or run box appears and I click OK, the browser window closes. From what I've read so far, it seems to be the way I installed it (again, finally!). Is there a way to tell ubuntu to allow Tor to download files?

Remember, I'm a complete noob and if anyone can answer this, I'll need specific instructions on how to do it. The terminal function is a complete mystery to me. I'll be glad to just have a link to a tutorial if no one wants to be bothered with typing the specifics.

Thank you in advance for any help.

I try to update from Ubuntu 24.04.4 LTS to Ubuntu 26.4 LTS, but it won't work. It gives the error

luuk@luuk-750XGK:\~/ventoy-1.0.99$ sudo us
root@luuk-750XGK:/home/luuk/ventoy-1.0.99# cd
root@luuk-750XGK:\~# sudo do-release-upgrade
Er wordt gecontroleerd of er een nieuwe Ubuntu-uitgave is
Er is geen ontwikkelversie van een LTS beschikbaar.
Om op te waarderen naar de nieuwste niet-LTS-ontwikkelingsversie 
geef Prompt=normal in /etc/update-manager/release-upgrades op.
root@luuk-750XGK:\~# 

( for the english people ):

luuk@luuk-750XGK:\~/ventoy-1.0.99$ sudo su
root@luuk-750XGK:/home/luuk/ventoy-1.0.99# cd
root@luuk-750XGK:\~# sudo do-release-upgrade
Checking for a new Ubuntu release
No development version of an LTS is available.
To upgrade to the latest non-LTS development version
enter Prompt=normal in /etc/update-manager/release-upgrades.
root@luuk-750XGK:\~#

I am aware of several questions relating to this Mediatek driver. Since I just saw that now there should be support for this device in the near future (post on phoronix), I wanted to ask if there is some news relating to this.

I have just updated my system to Ubuntu 26.04, with the kernel 7.0.0-15-generic. I can see that I have some files related to MT7902 when I use the command ls /lib/firmware/mediatek/ on the terminal. But still, the driver does not work automatically just after having updated to this new version of Ubuntu.

Is there something I could do now to get this device working? Or is it just to keep waiting for this to be fully supported?

Thank you for your answers

A while ago, I was having a lot of trouble installing Ubuntu 24.04 and it seemed like it wouldn't install because my laptop was old, so I had to go back to Windows and the same old routine. Now I want to know if I install version 26.04, is it stable and safe? Will it crash or not because the graphics card is old or something like that? What should I do if such a problem occurs?

My system is:

Cpu: i7 2630qm

Gpu: nvidia gt525m

Ram: 12GB DDR3

500GB SSD

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

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

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

I use a custom keyboard configuration that fixes a couple broken keys on my keyboard and also lets me use some of the more esoteric modifiers in Emacs. The configuration works perfectly fine in every other context, but I just discovered that for some reason GIMP is probing the configuration when it starts and this is somehow causing it to crash with the following output:

$ gimp
xkbcommon: ERROR: /home/max/.config/xkb/rules/evdev:15:11: unexpected token
xkbcommon: ERROR: No components returned from XKB rules "/home/max/.config/xkb/rules/evdev"
xkbcommon: ERROR: Couldn't look up rules 'evdev', model 'pc105', layout 'us', variant '', options ''
Segmentation fault (core dumped)

For reference, I am running Ubuntu 24.04 and the "command" gimp above is just an alias for the absolute path to the GIMP 3.0.6 AppImage file (i.e. GIMP-3.0.6-x86_64.AppImage)

For further reference, these are the contents of the evdev file it's complaining about:

$ cat .config/xkb/rules/evdev
! option               =    symbols
  mysymbols:caps_hyper =    +mysymbols(caps_hyper)
  mysymbols:ralt_meta  =    +mysymbols(ralt_meta)
  mysymbols:kp_nums    =    +mysymbols(kp_nums)

! option               =    compat
  mycompat:ralt_meta   =    +mycompat(ralt_meta)

! option               =    types
  mytypes:lvl3_shift   =    +mytypes(lvl3_shift)
//  mytypes:mod5_shift   =    +mytypes(mod5_shift)


// Include the system 'evdev' file
! include %S/evdev

It may be worth noting that the "unexpected token" it complains about is presumably in row 15, column 11, which is the % character on the final line. I also tried editing this to be the explicit full path to the system evdev file but I got the same error.

As you can see from the code below, I tried to install the Tauon app, but I keep running into problems. How can I solve this?

Results of flatpak install com.github.taiko2k.tauonmb:

Command 'flatpak' not found, but can be installed with: sudo apt install flatpak

Results of sudo apt install flatpak and apt --fix-broken install:

[sudo: authenticate] Password:  
                      
You might want to run 'apt --fix-broken install' to correct these.
Unsatisfied dependencies:
 flatpak : Depends: libostree-1-1 (>= 2020.8) but it is not going to be installed
 nordvpn-gui : Depends: nordvpn (>= 4.0.0) but it is not going to be installed
Error: Unmet dependencies. Try 'apt --fix-broken install' with no packages (or specify a solution).

~$ apt --fix-broken install
Error: Could not open lock file /var/lib/dpkg/lock-frontend - open (13: Permission denied)
Error: Unable to acquire the dpkg frontend lock (/var/lib/dpkg/lock-frontend), are you root?

I am using Ubuntu 26.04 lts and whatever gazebo I install shows an error message. Nothing is supported on this new version or is there some version?

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 have to quit the application and restart it in order to get new messages. When running it does retrieve some messages but it seems to be very randomly. The selected interval (10 min) to check for new messages doesn't hold. The Thunderbird version is 140.7.1esr, Ubuntu 22.04.5 LTS.

-Örjan

I am using Ubuntu 24.04.4. my USB drives will not mount. When I plug in a USB to my USB drive Ubuntu pulls up USB icon and says Failed to mount USB disk. Error mounting `dev/sda1 is not configured in the kernel.

Any programs like Exfat utils that require Ubuntu archives return or a sudo apt update return error temporary failure resolving us.archive.ubuntu.com. It says some archives maybe run apt-get update or try with -–fix-missing. How do I solve this?

I have an HP ZBook 15 G6, with a WWAN module included (Fibocom L850-GL). This WWAN with the SIM card is working under Windows 11 (had to start Windows to test it), but partially working under Ubuntu 26.04. The WWAN module is recognized by Ubuntu, and I can access it in the system parameters. But, I cannot define user data (apn, allowed-auth, user, password). There is an existing profile ("Datapro") that cannot be updated (I can fill in data, but it's not saved when I click on save !). I tried with mmcli, and I can create a bearer, but I don't know how to specify to connect the WWAN using this bearer...

Ideally, do you know how I could replace this "Datapro" profile to include my data ?

Edit 1:

• the wwan is not visible in nm-connection-editor.
• I don't know where the "Datapro" profile is located, and that's exactly the problem...

Edit 2:

st@ZBook-15-G6:~$ sudo mmcli -m 0 --simple-connect="apn=orange.fr"  
successfully connected the modem at bearer /org/freedesktop/ModemManager1/Bearer/0

st@ZBook-15-G6:~$ nmcli connection show    
NAME               UUID                                  TYPE      DEVICE     
lo                 50c4e3f1-a367-470d-9321-a2ea1be74deb  loopback  lo     
Mi 10T             21be3474-59e6-4ba2-81e6-701582a48702  wifi      --     
netplan-enp0s31f6  d4735e4b-9bfa-3052-b1c4-ef3302803c9a  ethernet  -- 

st@ZBook-15-G6:~$ sudo ls -l /etc/netplan /etc/NetworkManager/system-connections/
/etc/NetworkManager/system-connections/:   
total 0

/etc/netplan:  
total 12  
-rw------- 1 root root 191 May 18 15:44 00-installer-config.yaml  
-rw------- 1 root root 104 Apr 23 03:22 01-network-manager-all.yaml  
-rw------- 1 root root 695 May 18 15:37 90-NM-21be3474-59e6-4ba2-81e6-701582a48702.yaml

Edit 3:

in /etc/ModemManager, there are 3 directories, but they are empty.

Edit 4:

According to the Lenovo support, I did:

st@ZBook-15-G6:~$ sudo mmcli -m 0

--> primary port: wwan0at1

Then, I created the profile, according to my provider data:

$ sudo nmcli c add type gsm ifname wwan0at1 con-name Orange\ Internet apn orange

Now, I have a second profile available ("Orange Internet") and this one can be updated. So, this topic is solved. Thanks a lot @Daniel T !!!

Then, I updated the profile with the GUI tool and started the wwan. Unfortunately, without success.

Here is the command line result:

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.

In the log, I found: "failed to set initial EPS bearer settings....." But this is another problem and I will open another topic.

Thanks again.

I am just going to throw this one out there to see if anyone might have an idea as to what is happening. This is the first time I have ever bumped into this.

When I setup this XUbuntu 26.04 I gave it kind of a temporary hostname since I was dual booting with XUbuntu 24.04. Well, I have since removed 24.04 and I want to change my hostname back to what I use on my system.

Every time I go to change the hostname to terrance-ubuntu, sudo hostnamectl set-hostname terrance-ubuntu and I change the /etc/hosts file to match, as soon as I reboot my system the wired r8125 2.5Gbps NIC driver goes UNCLAIMED for some reason and if I connect via Wi-Fi it is extremely unstable. Any ideas?

One other thing I forgot to mention is that after this name change Chrome will also fail to launch. I will see if I can get the error messages it shows as well.

Chrome error after hostname change:

terrance@terrance-ubuntu:~$ google-chrome
[5048:5048:0525/184448.644528:ERROR:chrome/browser/process_singleton_posix.cc:363] The profile appears to be in use by another Google Chrome process (87936) on another computer (terrance-XU2604).  Chrome has locked the profile so that it doesn't get corrupted.  If you are sure no other processes are using this profile, you can unlock the profile and relaunch Chrome.
[5048:5048:0525/184448.646772:ERROR:chrome/browser/ui/views/message_box_dialog.cc:199] Unable to show message box: Google Chrome - The profile appears to be in use by another Google Chrome process (87936) on another computer (terrance-XU2604).  Chrome has locked the profile so that it doesn't get corrupted.  If you are sure no other processes are using this profile, you can unlock the profile and relaunch Chrome.

System information:

terrance@terrance-XU2604:~$ cat /etc/*release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=26.04
DISTRIB_CODENAME=resolute
DISTRIB_DESCRIPTION="Ubuntu 26.04 LTS"
PRETTY_NAME="Ubuntu 26.04 LTS"
NAME="Ubuntu"
VERSION_ID="26.04"
VERSION="26.04 LTS (Resolute Raccoon)"
VERSION_CODENAME=resolute
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=resolute
LOGO=ubuntu-logo

terrance@terrance-XU2604:~$ uname -a
Linux terrance-XU2604 7.0.0-15-generic #15-Ubuntu SMP PREEMPT_DYNAMIC Wed Apr 22 16:06:43 UTC 2026 x86_64 GNU/Linux

terrance@terrance-XU2604:~$ dkms status
nct6687d/20260313-180048, 7.0.0-14-generic, x86_64: installed
nct6687d/20260313-180048, 7.0.0-15-generic, x86_64: installed
r8125/9.016.01, 7.0.0-14-generic, x86_64: installed
r8125/9.016.01, 7.0.0-15-generic, x86_64: installed

terrance@terrance-XU2604:~$ sudo lshw -C network
[sudo: authenticate] Password:           
  *-network                 
       description: Wireless interface
       product: MT7922 802.11ax PCI Express Wireless Network Adapter
       vendor: MEDIATEK Corp.
       physical id: 0
       bus info: pci@0000:29:00.0
       logical name: wlan0
       version: 00
       serial: 04:68:74:9e:f2:b3
       width: 64 bits
       clock: 33MHz
       capabilities: pciexpress msi pm bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=mt7921e driverversion=7.0.0-15-generic firmware=____000000-20260224103233 latency=0 link=no multicast=yes wireless=IEEE 802.11
       resources: iomemory:7f0-7ef irq:121 memory:7ff2100000-7ff21fffff memory:fc300000-fc307fff
  *-network
       description: Ethernet interface
       product: RTL8125 2.5GbE Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:2a:00.0
       logical name: eth0
       version: 05
       serial: 0a:9c:62:49:33:4f
       capacity: 1Gbit/s
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8125 driverversion=9.016.01-NAPI duplex=full ip=10.0.0.100 latency=0 link=yes multicast=yes port=twisted pair
       resources: irq:38 ioport:f000(size=256) memory:fc200000-fc20ffff memory:fc210000-fc213fff

After hostname change and a reboot:

terrance@terrance-XU2604:~$ sudo hostnamectl set-hostname terrance-ubuntu
[sudo: authenticate] Password:           
terrance@terrance-XU2604:~$ cat /etc/hostname 
terrance-ubuntu

terrance@terrance-XU2604:~$ cat /etc/NetworkManager/NetworkManager.conf 
[main]
plugins=ifupdown,keyfile

[ifupdown]
managed=false

[device]
wifi.scan-rand-mac-address=no

terrance@terrance-ubuntu:~$ sudo lshw -C network
[sudo: authenticate] Password:           
  *-network                 
       description: Wireless interface
       product: MT7922 802.11ax PCI Express Wireless Network Adapter
       vendor: MEDIATEK Corp.
       physical id: 0
       bus info: pci@0000:29:00.0
       logical name: wlan0
       version: 00
       serial: 04:68:74:9e:f2:b3
       width: 64 bits
       clock: 33MHz
       capabilities: pciexpress msi pm bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=mt7921e driverversion=7.0.0-15-generic firmware=____000000-20260224103233 latency=0 link=no multicast=yes wireless=IEEE 802.11
       resources: iomemory:7f0-7ef irq:89 memory:7ff2100000-7ff21fffff memory:fc200000-fc207fff
  *-network UNCLAIMED
       description: Ethernet controller
       product: RTL8125 2.5GbE Controller
       vendor: Realtek Semiconductor Co., Ltd.
       physical id: 0
       bus info: pci@0000:2a:00.0
       version: 05
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress msix vpd cap_list
       configuration: latency=0
       resources: ioport:1000(size=256)

terrance@terrance-ubuntu:~$ cat /etc/NetworkManager/NetworkManager.conf 
[main]
plugins=ifupdown,keyfile

[ifupdown]
managed=false

[device]
wifi.scan-rand-mac-address=no


terrance@terrance-ubuntu:~$ lspci | grep -i ethernet
2a:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8125 2.5GbE Controller (rev 05)

I have an NVIDIA GeForce RTX 2070 SUPER, and until around October/November last year it had never caused me any problems on any Ubuntu release since 22.04. For quite a while everything worked fine, with no freezes or system lockups, however, with Ubuntu 25.04 I started having GPU compatibility issues, so I went back to Ubuntu 24.04. Since then and especially since late 2025, I've been experiencing intermittent full system freezes.

The issue does not seem to be tied to any specific application: it can happen with any program. It usually happens after a few hours of normal use, but it has also happened after several hours of idling with LibreOffice and/or Firefox open.

So far, NVIDIA driver 535 seems to have improved things somewhat, but it has not completely solved the problem.

My main question is whether this points to a known compatibility problem between my GPU, the NVIDIA drivers, and recent Ubuntu releases, and especially whether Ubuntu 26.04 could cause similar stability problems with this card.

I’d like to know:

• whether anyone with an RTX 2070 SUPER has seen similar behavior on recent Ubuntu releases.

• whether the 535 driver series has known issues with certain kernels or Ubuntu versions.

• whether Ubuntu 26.04 is likely to improve or worsen this kind of issue.

• what additional information would be most useful to diagnose it properly.

I can provide more technical details if needed, such as: exact kernel version, nvidia-smi output, dmesg, journalctl, or any other logs that may help identify the cause.

I have the standard version of Ubuntu installed (version 24.04), but I tried the Ubuntu Studio ISO and I liked it, so I'd like to install the theme. I don't need the audio and video editing software plus I don't want to reinstall my apps, so how do I install only the theme without installing all the apps that I don't need. There was an icon near the clock that I couldn't get rid of.

I'm having trouble setting up Remote Desktop in Ubuntu 26.04. After starting Remote Desktop on port 3389 and entering my username and password, the remote desktop session launches (I want to keep the same session open at all times). After restarting the computer, I can’t connect to it remotely. I have to log into Remote Desktop locally again and unlock the settings by entering the root password.

Is there a solution so that this also works after a restart?

I have a HP OfficeJet Pro 8500 that HP stopped supporting in Mac OS and Windows.

The printer works fabulously from Ubuntu with the HP supported driver.

I have been PDF'ing files and sharing to the Ubuntu device which has an automation to print any new files in a folder.

Can I do this better? I.e. have a driver that will print from latest Windows and MacOS rather than the faff of PDFing first?

I'd like my wife to just be able to hit file, print and be able to choose colour/bw and quality as with any other printer.

Today I upgraded to Kubuntu 26.04.

Moving my mouse coursor onto my second monitor using Wayland (Plasma) will permanently freeze the video output. This also happens in the login screen. I am able to circumvent it by using awesome-wm, but strongly prefer plasma. And it only occures when moving the mouse coursor there, having applications open and using keyboard shortcuts does not trigger it. Disabling the internal screen and just using the external one also does not help.

System is still running, as I am able to ssh in and reboot it.

I am on an optimus notebook with a 1060 6GB with kernel 7.0.0-14-generic, the following appears in the syslog:

2026-04-28T20:44:45.473990+02:00 notebook kernel: BUG: kernel NULL pointer dereference, address: 0000000000000028
2026-04-28T20:44:45.474007+02:00 notebook kernel: #PF: supervisor read access in kernel mode
2026-04-28T20:44:45.474009+02:00 notebook kernel: #PF: error_code(0x0000) - not-present page
2026-04-28T20:44:45.474009+02:00 notebook kernel: PGD 800000013626e067 P4D 800000013626e067 PUD 0 
2026-04-28T20:44:45.474018+02:00 notebook kernel: Oops: Oops: 0000 [#1] SMP PTI
2026-04-28T20:44:45.474018+02:00 notebook kernel: CPU: 5 UID: 1000 PID: 2469 Comm: kwin_wayland Tainted: P           OE       7.0.0-14-generic #14-Ubuntu PREEMPT(lazy) 
2026-04-28T20:44:45.474019+02:00 notebook kernel: Tainted: [P]=PROPRIETARY_MODULE, [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
2026-04-28T20:44:45.474019+02:00 notebook kernel: Hardware name: Notebook                         N85_87HP6/N85_87HP6, BIOS 1.05.08RTM 08/08/2017
2026-04-28T20:44:45.474020+02:00 notebook kernel: RIP: 0010:_nv000582kms+0x4/0x10 [nvidia_modeset]
2026-04-28T20:44:45.474020+02:00 notebook kernel: Code: 87 50 01 00 00 20 20 2d c8 48 c7 87 38 01 00 00 70 1e 2d c8 48 c7 87 40 01 00 00 40 22 2d c8 c3 66 0f 1f 44 00 00 f3 0f 1e fa <0f> b6 47 28 c3 0f 1f 80 00 00 00 00 89 c9 48 8d 04 49 48 c1 e0 04
2026-04-28T20:44:45.474021+02:00 notebook kernel: RSP: 0018:ffffd54649d13af0 EFLAGS: 00010293
2026-04-28T20:44:45.474021+02:00 notebook kernel: RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffc82d2660
2026-04-28T20:44:45.474022+02:00 notebook kernel: RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
2026-04-28T20:44:45.474022+02:00 notebook kernel: RBP: ffffd54649d13bb0 R08: 0000000000000000 R09: 0000000000000000
2026-04-28T20:44:45.474022+02:00 notebook kernel: R10: 0000000000000000 R11: 0000000000000000 R12: ffff8e0a87433500
2026-04-28T20:44:45.474023+02:00 notebook kernel: R13: ffffd54649d13b38 R14: ffff8e0a87433508 R15: 0000000000000000
2026-04-28T20:44:45.474023+02:00 notebook kernel: FS:  000075158ac2de80(0000) GS:ffff8e0e6a080000(0000) knlGS:0000000000000000
2026-04-28T20:44:45.474024+02:00 notebook kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
2026-04-28T20:44:45.474024+02:00 notebook kernel: CR2: 0000000000000028 CR3: 000000017739e005 CR4: 00000000003706f0
2026-04-28T20:44:45.474024+02:00 notebook kernel: Call Trace:
2026-04-28T20:44:45.474025+02:00 notebook kernel:  <TASK>
2026-04-28T20:44:45.474025+02:00 notebook kernel:  ? nv_drm_framebuffer_create+0x2fa/0x760 [nvidia_drm]
2026-04-28T20:44:45.474026+02:00 notebook kernel:  drm_internal_framebuffer_create+0x100/0x210
2026-04-28T20:44:45.474026+02:00 notebook kernel:  drm_mode_addfb2+0x51/0x120
2026-04-28T20:44:45.474027+02:00 notebook kernel:  ? __pfx_drm_prime_fd_to_handle_ioctl+0x10/0x10
2026-04-28T20:44:45.474027+02:00 notebook kernel:  ? __pfx_drm_mode_addfb2_ioctl+0x10/0x10
2026-04-28T20:44:45.474027+02:00 notebook kernel:  drm_mode_addfb2_ioctl+0xe/0x20
2026-04-28T20:44:45.474028+02:00 notebook kernel:  drm_ioctl_kernel+0xb5/0x110
2026-04-28T20:44:45.474028+02:00 notebook kernel:  drm_ioctl+0x309/0x5f0
2026-04-28T20:44:45.474028+02:00 notebook kernel:  ? __pfx_drm_mode_addfb2_ioctl+0x10/0x10
2026-04-28T20:44:45.474029+02:00 notebook kernel:  nv_drm_ioctl+0x38/0x3f0 [nvidia_drm]
2026-04-28T20:44:45.474029+02:00 notebook kernel:  ? __x64_sys_ioctl+0xbd/0x100
2026-04-28T20:44:45.474030+02:00 notebook kernel:  __x64_sys_ioctl+0xa3/0x100
2026-04-28T20:44:45.474030+02:00 notebook kernel:  ? putname+0x41/0x90
2026-04-28T20:44:45.474030+02:00 notebook kernel:  x64_sys_call+0x103b/0x2390
2026-04-28T20:44:45.474031+02:00 notebook kernel:  do_syscall_64+0x115/0x5a0
2026-04-28T20:44:45.474043+02:00 notebook kernel:  ? __x64_sys_openat+0x5f/0xa0
2026-04-28T20:44:45.474044+02:00 notebook kernel:  ? arch_exit_to_user_mode_prepare.isra.0+0xd/0xe0
2026-04-28T20:44:45.474044+02:00 notebook kernel:  ? do_syscall_64+0x150/0x5a0
2026-04-28T20:44:45.474045+02:00 notebook kernel:  ? sysvec_apic_timer_interrupt+0x54/0xd0
2026-04-28T20:44:45.474045+02:00 notebook kernel:  entry_SYSCALL_64_after_hwframe+0x76/0x7e
2026-04-28T20:44:45.474046+02:00 notebook kernel: RIP: 0033:0x751591732cbd
2026-04-28T20:44:45.474046+02:00 notebook kernel: Code: 04 25 28 00 00 00 48 89 45 c8 31 c0 48 8d 45 10 c7 45 b0 10 00 00 00 48 89 45 b8 48 8d 45 d0 48 89 45 c0 b8 10 00 00 00 0f 05 <89> c2 3d 00 f0 ff ff 77 1a 48 8b 45 c8 64 48 2b 04 25 28 00 00 00
2026-04-28T20:44:45.474046+02:00 notebook kernel: RSP: 002b:00007ffe69e33c10 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
2026-04-28T20:44:45.474047+02:00 notebook kernel: RAX: ffffffffffffffda RBX: 00007ffe69e33df4 RCX: 0000751591732cbd
2026-04-28T20:44:45.474048+02:00 notebook kernel: RDX: 00007ffe69e33ca0 RSI: 00000000c06864b8 RDI: 0000000000000101
2026-04-28T20:44:45.474049+02:00 notebook kernel: RBP: 00007ffe69e33c60 R08: 00007ffe69e33e50 R09: 00006223a6af1ca8
2026-04-28T20:44:45.474050+02:00 notebook kernel: R10: 0000751594f2769b R11: 0000000000000246 R12: 00007ffe69e33ca0
2026-04-28T20:44:45.474051+02:00 notebook kernel: R13: 00000000c06864b8 R14: 0000000000000101 R15: 00006223a6af1c70
2026-04-28T20:44:45.474052+02:00 notebook kernel:  </TASK>
2026-04-28T20:44:45.474066+02:00 notebook kernel: Modules linked in: ccm udp_diag ib_core tcp_diag inet_diag xt_conntrack xt_MASQUERADE bridge stp llc xfrm_user xfrm_algo xt_set ip_set nft_chain_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 xt_addrtype nft_compat x_tables nf_tables vxlan ip6_udp_tunnel udp_tunnel rfcomm snd_seq_dummy snd_hrtimer overlay vboxnetadp(OE) qrtr vboxnetflt(OE) cmac algif_hash algif_skcipher af_alg bnep vboxdrv(OE) ccp binfmt_misc nvidia_uvm(PO) intel_rapl_msr intel_rapl_common intel_uncore_frequency intel_uncore_frequency_common snd_hda_codec_intelhdmi nvidia_drm(PO) nvidia_modeset(PO) intel_tcc_cooling snd_hda_codec_alc269 x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_realtek_lib snd_hda_scodec_component snd_hda_codec_nvhdmi snd_hda_codec_generic snd_hda_codec_hdmi snd_soc_avs kvm_intel snd_soc_hda_codec iwlmvm snd_hda_intel snd_hda_ext_core snd_hda_codec snd_hda_core snd_intel_dspcfg snd_intel_sdw_acpi snd_hwdep snd_seq_midi kvm mac80211 snd_seq_midi_event snd_soc_core uvcvideo videobuf2_vmalloc uvc irqbypass
2026-04-28T20:44:45.474067+02:00 notebook kernel:  snd_compress ac97_bus libarc4 rapl videobuf2_memops ee1004 btusb btmtk nvidia(PO) mei_hdcp mei_pxp intel_cstate snd_rawmidi snd_pcm_dmaengine mxm_wmi iwlwifi videobuf2_v4l2 videobuf2_common i2c_i801 snd_seq i2c_smbus btrtl videodev snd_pcm btbcm btintel snd_seq_device i915 i2c_mux cfg80211 mc bluetooth drm_buddy nls_iso8859_1 snd_timer drm_display_helper snd cec mei_me soundcore rc_core drm_ttm_helper ttm mei i2c_algo_bit intel_pmc_core pmt_telemetry pmt_discovery pmt_class intel_pmc_ssram_telemetry intel_vsec acpi_pad input_leds joydev mac_hid sch_fq_codel parport_pc lp ppdev coretemp parport msr nvme_fabrics efi_pstore nfnetlink dmi_sysfs autofs4 wacom hid_generic usbhid hid psmouse nvme rtsx_pci_sdmmc serio_raw ghash_clmulni_intel r8169 nvme_core nvme_keyring nvme_auth hkdf realtek rtsx_pci video ahci wmi libahci aesni_intel
2026-04-28T20:44:45.474068+02:00 notebook kernel: CR2: 0000000000000028
2026-04-28T20:44:45.474068+02:00 notebook kernel: ---[ end trace 0000000000000000 ]---
2026-04-28T20:44:45.474069+02:00 notebook kernel: RIP: 0010:_nv000582kms+0x4/0x10 [nvidia_modeset]
2026-04-28T20:44:45.474070+02:00 notebook kernel: Code: 87 50 01 00 00 20 20 2d c8 48 c7 87 38 01 00 00 70 1e 2d c8 48 c7 87 40 01 00 00 40 22 2d c8 c3 66 0f 1f 44 00 00 f3 0f 1e fa <0f> b6 47 28 c3 0f 1f 80 00 00 00 00 89 c9 48 8d 04 49 48 c1 e0 04
2026-04-28T20:44:45.474071+02:00 notebook kernel: RSP: 0018:ffffd54649d13af0 EFLAGS: 00010293
2026-04-28T20:44:45.474071+02:00 notebook kernel: RAX: 0000000000000000 RBX: 0000000000000000 RCX: ffffffffc82d2660
2026-04-28T20:44:45.474098+02:00 notebook kernel: RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
2026-04-28T20:44:45.474099+02:00 notebook kernel: RBP: ffffd54649d13bb0 R08: 0000000000000000 R09: 0000000000000000
2026-04-28T20:44:45.474100+02:00 notebook kernel: R10: 0000000000000000 R11: 0000000000000000 R12: ffff8e0a87433500
2026-04-28T20:44:45.474101+02:00 notebook kernel: R13: ffffd54649d13b38 R14: ffff8e0a87433508 R15: 0000000000000000
2026-04-28T20:44:45.474102+02:00 notebook kernel: FS:  000075158ac2de80(0000) GS:ffff8e0e6a080000(0000) knlGS:0000000000000000
2026-04-28T20:44:45.474103+02:00 notebook kernel: CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
2026-04-28T20:44:45.474104+02:00 notebook kernel: CR2: 0000000000000028 CR3: 000000017739e005 CR4: 00000000003706f0
2026-04-28T20:44:45.474105+02:00 notebook kernel: note: kwin_wayland[2469] exited with irqs disabled
2026-04-28T20:44:45.482324+02:00 notebook kwin_wayland_wrapper[2469]: kwin_scene_opengl: Invalid framebuffer status:  "GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT"

Ouput of swapon

NAME      TYPE      SIZE USED PRIO
/dev/sda1 partition 7,5G   0B   -1

Output of dpkg -l *nvidia* | grep ii

ii  libnvidia-cfg1-580:amd64                       580.142-0ubuntu3              amd64        NVIDIA binary OpenGL/GLX configuration library
ii  libnvidia-common-580:i386                      580.142-0ubuntu3              i386         Shared files used by the NVIDIA libraries
ii  libnvidia-compute-580:amd64                    580.142-0ubuntu3              amd64        NVIDIA libcompute package
ii  libnvidia-compute-580:i386                     580.142-0ubuntu3              i386         NVIDIA libcompute package
ii  libnvidia-decode-580:amd64                     580.142-0ubuntu3              amd64        NVIDIA Video Decoding runtime libraries
ii  libnvidia-decode-580:i386                      580.142-0ubuntu3              i386         NVIDIA Video Decoding runtime libraries
ii  libnvidia-egl-wayland1:amd64                   1:1.1.21-1                    amd64        Wayland EGL External Platform library -- shared library
ii  libnvidia-egl-wayland1:i386                    1:1.1.21-1                    i386         Wayland EGL External Platform library -- shared library
ii  libnvidia-encode-580:amd64                     580.142-0ubuntu3              amd64        NVENC Video Encoding runtime library
ii  libnvidia-encode-580:i386                      580.142-0ubuntu3              i386         NVENC Video Encoding runtime library
ii  libnvidia-extra-580:amd64                      580.142-0ubuntu3              amd64        Extra libraries for the NVIDIA driver
ii  libnvidia-fbc1-580:amd64                       580.142-0ubuntu3              amd64        NVIDIA OpenGL-based Framebuffer Capture runtime library
ii  libnvidia-fbc1-580:i386                        580.142-0ubuntu3              i386         NVIDIA OpenGL-based Framebuffer Capture runtime library
ii  libnvidia-gl-580:amd64                         580.142-0ubuntu3              amd64        NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
ii  libnvidia-gl-580:i386                          580.142-0ubuntu3              i386         NVIDIA OpenGL/GLX/EGL/GLES GLVND libraries and Vulkan ICD
ii  linux-firmware-nvidia-graphics                 20260319.git217ca6e4-0ubuntu1 all          Firmware for Nvidia graphics
ii  linux-modules-nvidia-580-7.0.0-14-generic      7.0.0-14.14                   amd64        Linux kernel nvidia modules for version 7.0.0-14
ii  linux-modules-nvidia-580-generic               7.0.0-14.14                   amd64        Extra drivers for nvidia-580 for the generic flavour
ii  linux-objects-nvidia-580-7.0.0-14-generic      7.0.0-14.14                   amd64        Linux kernel nvidia modules for version 7.0.0-14 (objects)
ii  linux-signatures-nvidia-7.0.0-14-generic       7.0.0-14.14                   amd64        Linux kernel signatures for nvidia modules for version 7.0.0-14-generic
ii  nvidia-compute-utils-580                       580.142-0ubuntu3              amd64        NVIDIA compute utilities
ii  nvidia-driver-580                              580.142-0ubuntu3              amd64        NVIDIA driver metapackage
ii  nvidia-firmware-580-580.142                    580.142-0ubuntu3              amd64        Firmware files used by the kernel module
ii  nvidia-kernel-common-580                       580.142-0ubuntu3              amd64        Shared files used with the kernel module
ii  nvidia-kernel-source-580                       580.142-0ubuntu3              amd64        NVIDIA kernel source package
ii  nvidia-prime                                   0.8.17.2build1                all          Tools to enable NVIDIA's Prime
ii  nvidia-settings                                510.47.03-0ubuntu7            amd64        Tool for configuring the NVIDIA graphics driver
ii  nvidia-utils-580                               580.142-0ubuntu3              amd64        NVIDIA driver support binaries
ii  xserver-xorg-video-nvidia-580                  580.142-0ubuntu3              amd64        NVIDIA binary Xorg driver

/var/crash/ is empty prime-select is on nvidia. I should not that I can switch to intel, but that also disables the HDMI port, so the problem cannot be replicated then.

Adding KWIN_FORCE_SW_CURSOR=1 to /etc/environment does not help.

How do you fix the mouse wheel acting insane?

Whenever I tab back a browser window with a scrollable pane, and scroll using my mouse, the window scroll position often "jumps" wildly. Meaning, I might turn the mouse scroll wheel one click, but the window acts like I scrolled 100,000 clicks and jumps me pages up or pages down.

At first I thought it was just some buggy mouse, but I've tried multiple wireless mice, and it happens with all of them, so I have to assume it's some weird event issue in Gnome.

I've found if I first click on a dead area of the screen to ensure that window is explicitly in focus and then scroll, then scrolling works normally.

Anyone else notice this behavior? I'm running Ubuntu 22.04, although it happened in 20.04 too.

I just installed Ubuntu 22.04 LTS and was delighted to see that a remote desktop server is built in and supports MS RDP in addition to VNC. It has some quirks related to the password, which I found out about on this post: 22.04 - Remote Desktop Sharing authentication password changes every reboot

I am hoping to have remote desktop available on boot, without logging in, or if it uses auto-login it keeps the password, so that I can run the system headless and RDP/VNC into it. It looks like gnome-remote-desktop runs as a user service, not a system service, so it's not active unless the user logs in. And it starts before the keyring is unlocked, so it creates a new password every time it starts. It seems like there are many ways to get around these issue, but I'm not sure what's the best route or even if any/all of these are possible:

1. Continue using auto-login so that remote desktop can run as a user service but somehow fix it so that it keeps the same password (ideally without disabling keyring completely).

2. Disable the built-in remote desktop feature and install some other RDP/VNC server and manually configure it, but would that conflict with the built-in one? Not sure.

3. Is it possible to convert the gnome-remote-desktop user service to a system service? And if so, where would it store the password if not in the user keyring? Is this even an option at all?

4. Something else?!

Would love any suggestions. Thanks.

I have a problem with my backup external drive. Can you help please ?

EDIT I ran chkdsk from a windows machine. There messages with sectors issues. Now I still have the display below with "?" when I list the directories from my linux machine. Is it possible to retrieve what's in BackupsmonPC ??

ro:LACIEBIG$ ll
ls: cannot access '.Trashes': Input/output error
ls: cannot access 'BackupsmonPC': Input/output error
ls: cannot access 'Results': Input/output error
total 42M
d????????? ? ?       ?          ?              ? BackupsmonPC
-rwxrwxrwx 1 louisro louisro  16K mars   8  2013 .DS_Store
drwxrwxrwx 1 louisro louisro 4,0K nov.  23  2019 MarieCas
drwxrwxrwx 1 louisro louisro 4,0K juin  27  2008 photos Digues StJean
drwxrwxrwx 1 louisro louisro  42M févr. 19  2013 recupSite
d????????? ? ?       ?          ?              ? Results
-rwxrwxrwx 1 louisro louisro   36 mars   8  2013 syncguid.dat
drwxrwxrwx 1 louisro louisro 4,0K févr.  4  2009 System Volume Information
drwxrwxrwx 1 louisro louisro    0 juin  24  2014 .Trash-1000
d????????? ? ?       ?          ?              ? .Trashes
-rwxrwxrwx 1 louisro louisro 4,0K mars   8  2013 ._.Trashes

The drive is in NTFS format.

Ntfsfix doens't see the drive:

ro$ sudo ntfsfix /dev/sdd
Failed to determine whether /dev/sdd is mounted: No such file or directory
Mounting volume... Failed to access '/dev/sdd': No such file or directory
Error opening '/dev/sdd': No such file or directory
FAILED
Attempting to correct errors... Failed to access '/dev/sdd': No such file or directory
Error opening '/dev/sdd': No such file or directory
FAILED
Failed to startup volume: No such file or directory
Failed to access '/dev/sdd': No such file or directory
Error opening '/dev/sdd': No such file or directory
Volume is corrupt. You should run chkdsk.

EDIT I ran this test:

ro:LACIEBIG$ sudo smartctl -a /dev/sdb -d sat
smartctl 6.5 2016-01-24 r4214 [x86_64-linux-4.4.0-193-generic] (local build)
Copyright (C) 2002-16, Bruce Allen, Christian Franke, www.smartmontools.org

=== START OF INFORMATION SECTION ===
Model Family:     SAMSUNG SpinPoint T166
Device Model:     SAMSUNG HD501LJ
Serial Number:    S0MUJ13P709421
LU WWN Device Id: 5 0000f0 01b709421
Firmware Version: CR100-10
User Capacity:    500 107 862 016 bytes [500 GB]
Sector Size:      512 bytes logical/physical
Device is:        In smartctl database [for details use: -P show]
ATA Version is:   ATA8-ACS T13/1699-D revision 3b
SATA Version is:  SATA 2.5, 3.0 Gb/s
Local Time is:    Wed Nov 18 20:10:16 2020 CET
SMART support is: Available - device has SMART capability.
SMART support is: Enabled

=== START OF READ SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED

General SMART Values:
Offline data collection status:  (0x00) Offline data collection activity
                    was never started.
                    Auto Offline Data Collection: Disabled.
Self-test execution status:      (   0) The previous self-test routine completed
                    without error or no self-test has ever 
                    been run.
Total time to complete Offline 
data collection:        ( 8924) seconds.
Offline data collection
capabilities:            (0x5b) SMART execute Offline immediate.
                    Auto Offline data collection on/off support.
                    Suspend Offline collection upon new
                    command.
                    Offline surface scan supported.
                    Self-test supported.
                    No Conveyance Self-test supported.
                    Selective Self-test supported.
SMART capabilities:            (0x0003) Saves SMART data before entering
                    power-saving mode.
                    Supports SMART auto save timer.
Error logging capability:        (0x01) Error logging supported.
                    General Purpose Logging supported.
Short self-test routine 
recommended polling time:    (   2) minutes.
Extended self-test routine
recommended polling time:    ( 152) minutes.
SCT capabilities:          (0x003f) SCT Status supported.
                    SCT Error Recovery Control supported.
                    SCT Feature Control supported.
                    SCT Data Table supported.

SMART Attributes Data Structure revision number: 16
Vendor Specific SMART Attributes with Thresholds:
ID# ATTRIBUTE_NAME          FLAG     VALUE WORST THRESH TYPE      UPDATED  WHEN_FAILED RAW_VALUE
  1 Raw_Read_Error_Rate     0x000f   253   100   051    Pre-fail  Always       -       0
  3 Spin_Up_Time            0x0007   100   100   015    Pre-fail  Always       -       7104
  4 Start_Stop_Count        0x0032   100   100   000    Old_age   Always       -       292
  5 Reallocated_Sector_Ct   0x0033   253   253   010    Pre-fail  Always       -       0
  7 Seek_Error_Rate         0x000f   253   253   051    Pre-fail  Always       -       0
  8 Seek_Time_Performance   0x0025   253   253   015    Pre-fail  Offline      -       0
  9 Power_On_Hours          0x0032   100   100   000    Old_age   Always       -       634
 10 Spin_Retry_Count        0x0033   253   253   051    Pre-fail  Always       -       0
 11 Calibration_Retry_Count 0x0012   253   253   000    Old_age   Always       -       0
 12 Power_Cycle_Count       0x0032   100   100   000    Old_age   Always       -       272
187 Reported_Uncorrect      0x0032   253   253   000    Old_age   Always       -       0
188 Command_Timeout         0x0032   253   253   000    Old_age   Always       -       0
190 Airflow_Temperature_Cel 0x0022   078   052   000    Old_age   Always       -       22
194 Temperature_Celsius     0x0022   172   094   000    Old_age   Always       -       22
195 Hardware_ECC_Recovered  0x001a   100   100   000    Old_age   Always       -       40956
196 Reallocated_Event_Count 0x0032   253   253   000    Old_age   Always       -       0
197 Total_Pending_Sectors   0x0012   253   253   000    Old_age   Always       -       0
198 Offline_Uncorrectable   0x0030   253   253   000    Old_age   Offline      -       0
199 UDMA_CRC_Error_Count    0x003e   200   200   000    Old_age   Always       -       0
200 Multi_Zone_Error_Rate   0x000a   253   100   000    Old_age   Always       -       0
201 Soft_Read_Error_Rate    0x000a   253   100   000    Old_age   Always       -       0
202 Data_Address_Mark_Errs  0x0032   253   253   000    Old_age   Always       -       0

SMART Error Log Version: 1
No Errors Logged

SMART Self-test log structure revision number 1
No self-tests have been logged.  [To run self-tests, use: smartctl -t]

SMART Selective self-test log data structure revision number 0
Note: revision number not 1 implies that no selective self-test has ever been run
 SPAN  MIN_LBA  MAX_LBA  CURRENT_TEST_STATUS
    1        0        0  Not_testing
    2        0        0  Not_testing
    3        0        0  Not_testing
    4        0        0  Not_testing
    5        0        0  Not_testing
Selective self-test flags (0x0):
  After scanning selected spans, do NOT read-scan remainder of disk.
If Selective self-test is pending on power-up, resume after 0 minute delay.

and also this test:

$ sudo e2fsck -c /dev/sdb
e2fsck 1.42.13 (17-May-2015)
ext2fs_open2: Bad magic number in super-block
e2fsck: Superblock invalid, trying backup blocks...
e2fsck: Bad magic number in super-block while trying to open /dev/sdb

The superblock could not be read or does not describe a valid ext2/ext3/ext4
filesystem.  If the device is valid and it really contains an ext2/ext3/ext4
filesystem (and not swap or ufs or something else), then the superblock
is corrupt, and you might try running e2fsck with an alternate superblock:
    e2fsck -b 8193 <device>
 or
    e2fsck -b 32768 <device>

WIRELESS USB DONGLE - BLUETOOTH USB DONGLE - MINI 5.0 - VERSION 5.48 - 0a12:0001

So lately I bought a Bluetooth USB dongle - model no: MLT-5.0-MiNi

I'm using Ubuntu 20.04.1 LTS.

1. After I connected the adapter into USB port, I checked the port typing in terminal lsusb and I got the following:

Bus 002 Device 003: ID 0a12:0001 Cambridge Silicon Radio, Ltd Bluetooth Dongle (HCI mode)

2. hciconfig -a gave the following:

hci0:   Type: Primary  Bus: USB
        BD Address: 00:1A:7D:DA:71:11  ACL MTU: 679:9  SCO MTU: 48:16
        DOWN
        RX bytes:574 acl:0 sco:0 events:30 errors:0
        TX bytes:368 acl:0 sco:0 commands:30 errors:0
        Features: 0xff 0xff 0x87 0xfa 0xdb 0xbf 0x7b 0x83
        Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 
        Link policy: RSWITCH HOLD SNIFF PARK 
        Link mode: SLAVE ACCEPT

3. hcitool dev:

Devices:

So it seemed that my PC didn't have the driver installed.

4. bluetoothctl --version:

bluetoothctl: 5.53

5. rfkill:

ID TYPE      DEVICE      SOFT      HARD
0  bluetooth hci0   unblocked unblocked

6. And finally btmon:

Bluetooth monitor ver 5.53
Failed to bind channel: Operation not permitted

I found this YouTube video to solve the problem.

1. First of all, I had to install the app "Ubuntu Mainline Kernel Installer" to update until the lastest kernel version, so I typed:

sudo add-apt-repository ppa:cappelikan/ppa
sudo apt-get update
sudo apt-get install mainline

2. Then, before updating to the last kernel version, I had to check what the running kernel version is:

User@PC:~$ uname -r

5.4.0-48-generic

User@PC:~$ uname -sr

Linux 5.4.0-48-generic

3. Later I went to the website of KERNEL and checked what the last Kernel version that's stable is, for example: 5.8.13

After all, I opened the app Ubuntu Mainline Kernel Installer and clicked the last kernel version that is stable, for example: 5.8.13. Finally clicked the button Install.

4. After the installation and reboot, I checked again:

User@PC:~$ uname -r

5.8.13-050813-generic

User@PC:~$ uname -sr

Linux 5.8.13-050813-generic

I saw that it was successful, and the bluetooth USB DONGLE 5.0 is working.

BUT THERE IS ONE PROBLEM TO CONNECT AFTER PAIRING: After pairing Ubuntu with my speaker 5.0, it cannot connect, then after pairing Ubuntu with my smartphone LG, I couldn't send any pictures to smartphone from Ubuntu nor vice versa.

1. I typed systemctl status bluetooth and entered.

● bluetooth.service - Bluetooth service
     Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
     Active: active (running) since Sat 2020-10-03 19:02:12 -05; 10min ago
       Docs: man:bluetoothd(8)
   Main PID: 2173 (bluetoothd)
     Status: "Running"
      Tasks: 1 (limit: 4649)
     Memory: 2.2M
     CGroup: /system.slice/bluetooth.service
             └─2173 /usr/lib/bluetooth/bluetoothd

oct 03 19:02:11 PC systemd[1]: Starting Bluetooth service...
oct 03 19:02:12 PC bluetoothd[2173]: Bluetooth daemon 5.53
oct 03 19:02:12 PC systemd[1]: Started Bluetooth service.
oct 03 19:02:12 PC bluetoothd[2173]: Starting SDP server
oct 03 19:02:12 PC bluetoothd[2173]: Bluetooth management interface 1.17 initialized
oct 03 19:02:13 PC bluetoothd[2173]: Failed to set mode: Blocked through rfkill (0x12)
oct 03 19:02:14 PC bluetoothd[2173]: Endpoint registered: sender=:1.75 path=/MediaEndpoint/A2DPSink/sbc
oct 03 19:02:14 PC bluetoothd[2173]: Endpoint registered: sender=:1.75 path=/MediaEndpoint/A2DPSource/sbc
oct 03 19:02:14 PC bluetoothd[2173]: Failed to set mode: Blocked through rfkill (0x12)

I see that there is a problem:

bluetoothd[2173]: Failed to set mode: Blocked through rfkill (0x12)

2. rfkill list:

1: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

3. hciconfig -a:

hci0:   Type: Primary  Bus: USB
    BD Address: 00:1A:7D:DA:71:11  ACL MTU: 679:9  SCO MTU: 48:16
    UP RUNNING PSCAN ISCAN 
    RX bytes:1174 acl:0 sco:0 events:65 errors:0
    TX bytes:1046 acl:0 sco:0 commands:65 errors:0
    Features: 0xff 0xff 0x87 0xfa 0xdb 0xbf 0x7b 0x83
    Packet type: DM1 DM3 DM5 DH1 DH3 DH5 HV1 HV2 HV3 
    Link policy: RSWITCH HOLD SNIFF PARK 
    Link mode: SLAVE ACCEPT 
    Name: 'Daniel-MS-7529'
    Class: 0x1c0104
    Service Classes: Rendering, Capturing, Object Transfer
    Device Class: Computer, Desktop workstation
    HCI Version: 5.0 (0x9)  Revision: 0x810
    LMP Version: 5.0 (0x9)  Subversion: 0x2312
    Manufacturer: Cambridge Silicon Radio (10)

I see that everything is OK.

4. btmon:

Bluetooth monitor ver 5.53
Failed to bind channel: Operation not permitted

5. sudo dmesg | grep -i bluetooth:

[  132.146271] Bluetooth: Core ver 2.22
[  132.146302] Bluetooth: HCI device and connection manager initialized
[  132.146308] Bluetooth: HCI socket layer initialized
[  132.146310] Bluetooth: L2CAP socket layer initialized
[  132.146314] Bluetooth: SCO socket layer initialized
[  132.515401] Bluetooth: hci0: CSR: Unbranded CSR clone detected; adding workarounds...
[  133.859424] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[  133.859426] Bluetooth: BNEP filters: protocol multicast
[  133.859431] Bluetooth: BNEP socket layer initialized
[  135.263551] Bluetooth: RFCOMM TTY layer initialized
[  135.263561] Bluetooth: RFCOMM socket layer initialized
[  135.263570] Bluetooth: RFCOMM ver 1.11
[ 1017.955624] Bluetooth: hci0: inquiry failed: status 0x0c
[ 1023.331631] Bluetooth: hci0: inquiry failed: status 0x0c
[ 3305.392256] Bluetooth: hci0: CSR: Unbranded CSR clone detected; adding workarounds...

There is one more problem:

Bluetooth: hci0: inquiry failed: status 0x0c

6. Another time, I typed on the terminal hcidump -X and entered and then I went to the setting of Bluetooth to try to pair and connect the speaker and I got the following results on the terminal:

HCI sniffer - Bluetooth packet analyzer ver 5.53
device: hci0 snap_len: 1500 filter: 0xffffffffffffffff

[several lines related to HCI Event]

> HCI Event: Command Status (0x0f) plen 4
    Inquiry (0x01|0x0001) status 0x00 ncmd 1
> HCI Event: Extended Inquiry Result (0x2f) plen 255
    bdaddr 88:D0:39:7C:24:61 mode 1 clkoffset 0x2744 class 0x240404 rssi -25
    Complete local name: 'Soundcore Flare+'
    Unknown type 0xff with 9 bytes data
> HCI Event: Extended Inquiry Result (0x2f) plen 255
    bdaddr 24:FC:E5:6E:53:5B mode 1 clkoffset 0x18bd class 0x08043c rssi -71
> HCI Event: Extended Inquiry Result (0x2f) plen 255
    bdaddr 24:FC:E5:6E:53:5B mode 1 clkoffset 0x18bd class 0x08043c rssi -98
> HCI Event: Inquiry Complete (0x01) plen 1
    status 0x00
> HCI Event: Command Complete (0x0e) plen 4
    LE Set Random Address (0x08|0x0005) ncmd 1
    status 0x00
> HCI Event: Command Complete (0x0e) plen 4
    LE Set Scan Parameters (0x08|0x000b) ncmd 1
    status 0x00
> HCI Event: Command Complete (0x0e) plen 4
    LE Set Scan Enable (0x08|0x000c) ncmd 1
    status 0x00
> HCI Event: Command Status (0x0f) plen 4
    Disconnect (0x01|0x0006) status 0x00 ncmd 1
> HCI Event: Command Complete (0x0e) plen 4
    LE Set Scan Enable (0x08|0x000c) ncmd 1
    status 0x00
> HCI Event: Command Status (0x0f) plen 4
    Inquiry (0x01|0x0001) status 0x00 ncmd 1
> HCI Event: Disconn Complete (0x05) plen 4
    status 0x00 handle 128 reason 0x16
    Reason: Connection Terminated by Local Host
> HCI Event: Extended Inquiry Result (0x2f) plen 255
    bdaddr 88:D0:39:7C:24:61 mode 1 clkoffset 0x2745 class 0x240404 rssi -25
    Complete local name: 'Soundcore Flare+'
    Unknown type 0xff with 9 bytes data
> HCI Event: Inquiry Complete (0x01) plen 1
    status 0x00
> HCI Event: Command Complete (0x0e) plen 4
    LE Set Random Address (0x08|0x0005) ncmd 1
    status 0x00
> HCI Event: Command Complete (0x0e) plen 4
    LE Set Scan Parameters (0x08|0x000b) ncmd 1
    status 0x00
> HCI Event: Command Complete (0x0e) plen 4
    LE Set Scan Enable (0x08|0x000c) ncmd 1
    status 0x00
> HCI Event: Command Complete (0x0e) plen 4
    LE Set Scan Enable (0x08|0x000c) ncmd 1
    status 0x00
> HCI Event: Command Status (0x0f) plen 4
    Inquiry (0x01|0x0001) status 0x00 ncmd 1
> HCI Event: Extended Inquiry Result (0x2f) plen 255
    bdaddr 88:D0:39:7C:24:61 mode 1 clkoffset 0x2745 class 0x240404 rssi -27
    Complete local name: 'Soundcore Flare+'
    Unknown type 0xff with 9 bytes data
> HCI Event: Extended Inquiry Result (0x2f) plen 255
    bdaddr 88:D0:39:7C:24:61 mode 1 clkoffset 0x2745 class 0x240404 rssi -27
    Complete local name: 'Soundcore Flare+'
    Unknown type 0xff with 9 bytes data
> HCI Event: Extended Inquiry Result (0x2f) plen 255
    bdaddr 88:D0:39:7C:24:61 mode 1 clkoffset 0x2745 class 0x240404 rssi -24
    Complete local name: 'Soundcore Flare+'
    Unknown type 0xff with 9 bytes data
> HCI Event: Extended Inquiry Result (0x2f) plen 255
    bdaddr 88:D0:39:7C:24:61 mode 1 clkoffset 0x2745 class 0x240404 rssi -24
    Complete local name: 'Soundcore Flare+'
    Unknown type 0xff with 9 bytes data
> HCI Event: Extended Inquiry Result (0x2f) plen 255
    bdaddr 88:D0:39:7C:24:61 mode 1 clkoffset 0x2745 class 0x240404 rssi -23
    Complete local name: 'Soundcore Flare+'
    Unknown type 0xff with 9 bytes data
> HCI Event: Extended Inquiry Result (0x2f) plen 255
    bdaddr 88:D0:39:7C:24:61 mode 1 clkoffset 0x2745 class 0x240404 rssi -24
    Complete local name: 'Soundcore Flare+'
    Unknown type 0xff with 9 bytes data
> HCI Event: Extended Inquiry Result (0x2f) plen 255
    bdaddr 88:D0:39:7C:24:61 mode 1 clkoffset 0x2745 class 0x240404 rssi -23
    Complete local name: 'Soundcore Flare+'
    Unknown type 0xff with 9 bytes data
> HCI Event: Extended Inquiry Result (0x2f) plen 255
    bdaddr 88:D0:39:7C:24:61 mode 1 clkoffset 0x2745 class 0x240404 rssi -22
    Complete local name: 'Soundcore Flare+'
    Unknown type 0xff with 9 bytes data

Soundcore Flare+ is the speaker's model. I see there is one another problem:

Unknown type 0xff with 9 bytes data

The Bluetooth USB 5.0 works fine on Windows 10 but on Ubuntu 20.04, it doesn't work. So Ubuntu needs drivers for Bluetooth 5.0.

On 5.8.14 Kernel, Ubuntu really displays devices to pair and connect, but the pairing and connecting don't work.

So, could anyone help me to solve this problem of pairing and connecting with devices from Ubuntu?

I found the problem solved for Linux in this website but I don't know how to compile and patch on Ubuntu 20.04, it can work only for Kernel's version 5.8.

I'm using Ubuntu with Gnome. My multimedia keys (play/pause, stop, etc) were working fine and then all of a sudden they stopped working.

In particular I'd like for them to work with Spotify.

When this is run,

#!/bin/bash 
#
# located in /lib/systemd/system-sleep/
# Created 4/2/19
exec 2> /tmp/systemd_suspend_test_err.txt
if [ "${1}" = "pre" ]; then
  # Do the thing you want before suspend here
  echo "we are suspending $(date)." > /home/andy/Downloads/message.txt
elif [ "${1}" = "post" ]; then
  # Do the thing you want after resume here
   echo "and we are back from being suspended $(date)" >> /home/andy/Downloads/message.txt
  #sleep 10
  #notify-send "Computer is returning from suspend." -t 2000
   gxmessage does NOT work and neither does inotify-send
  /usr/bin/gxmessage -fg red -font  'sans 30' -timeout 3  'Back from being suspended.'
fi

I get this in /tmp/systemd_suspend_test_err.txt.

Unable to init server: Could not connect: Connection refused
gxmessage: unable to initialize GTK

I am trying to suppress network printers showing up under Settings/Devices/Printers on my Ubuntu 17.10 (Gnome) desktop. It's my desktop in my office and all the printers in this building appear under Settings/Devices/Printers.

I have edited /etc/cups/cups-browsed.conf as:

BrowseRemoteProtocols none
BrowseLocalProtocols none
BrowseProtocols none

and restarted the service.

$ sudo service cups-browsed restart  

But if I go to settings/Devices/Printers, I still see all the network printers. Same even if I log out and then log in, or restart the system. But it is not that the modification to the cups-browsed.conf file is reset on reboot.

If I manually remove the printers from the Settings/Devices/Printers list (by clicking the gear button next to the "No Active Jobs" and Remove Printer), they are removed but come back on my next visit to the Printers tab. I think it is not intended that the "remove" operation is effective only while I stay inside the tab.

If I stop the cups-browsed as:

$ sudo service cups-browsed stop

or

$ sudo systemctl disable cups-browsed

Settings crashes and on re-opening the Settings/Devices/Printers tab, all the printers are again there.

For your information, there is only one printer visible in http://localhost:631/printers/ or in some of the printing dialogs. However, for example, the printing dialog in Chrome would show me tens of network printers.

How can I stop the system searching for network printers everytime I open Settings/Devices/Printers, or a printing dialog in Chrome?

Is there a list of Ubuntu versions with default corresponding Linux kernel versions somewhere?

I would specifically like to know the most recent version of Ubuntu that still used Linux Kernel 2.x.

I just updated the DNS record (ns1, ns2, ns3.myhostingcompany.com) for a site I've got hosted, but I still get the domain registrar parking page.

I'd like to see if the problem is Ubuntu's cached DNS records. Is there a way to clear Ubuntu's DNS cache? (if such a thing exists?)