I am having Wi-Fi issues on my laptop after installing Ubuntu. My wireless card is Realtek 8852BE Wireless LAN WiFi 6 PCI-E NIC, and it does not work properly on Ubuntu — the connection is unstable, sometimes disconnects, and the speed is very low compared to Windows.

Here are my device specifications:

Device name: Alisher

Processor: AMD Ryzen 5 7430U with Radeon Graphics (2.30 GHz)

RAM: 16 GB

System type: 64-bit operating system, x64-based processor

Wireless adapter: Realtek 8852BE WiFi 6 PCI-E NIC

I think Ubuntu does not have a stable driver for this Wi-Fi chipset. Could you please help me install the correct driver or provide a fix for this issue?

Thank you in advance!

I created a video file with OBS. I put it on a website to share with a class I am teaching. When I try to see the video on my Firefox browser (I am running Ubuntu 22.04 and Firefox 132.0.2 ).

When I click on the link for the video, I get the message "No video with supported format and MIME type found". I have looked through various sites, including askUbuntu and have done what folks in the past have done, apparently successfully (I have installed ffmpeg, although I already had it installed). But, nothing seems to work.

Can someone help?

I'm trying to adjust the display scale of a fresh Ubuntu 24.04.3 installation from a script.

If I do a fresh install of Ubuntu 24.04.03, go to the display settings, and manually set display scale to 300%, and then run a flutter app I've written, everything looks great. The cursor is a reasonable size. Also, the lock screen is scaled up correctly.

If however I do a fresh install, and then use a script to create ~/.config/monitors.xml with the following contents (which is the same as what it is after changing the display scale via the display settings):

<monitors version="2">
  <configuration>
    <logicalmonitor>
      <x>0</x>
      <y>0</y>
      <scale>3</scale>
      <primary>yes</primary>
      <monitor>
        <monitorspec>
          <connector>HDMI-1</connector>
          <vendor>DST</vendor>
          <product>HXXS_QHD</product>
          <serial>0x00000001</serial>
        </monitorspec>
        <mode>
          <width>2560</width>
          <height>1600</height>
          <rate>50.004</rate>
        </mode>
      </monitor>
    </logicalmonitor>
  </configuration>
</monitors>

Then the desktop and app UI scales up fine, except when running my flutter app the cursor is super tiny and looks a bit mangled. Also, the lock screen doesn't get scaled up.

When running my flutter app on the manually configured system, I see the following logs (even though the cursor looks great):

Gdk-Message: Unabel to load  from the cursor theme
Gdk-WARNING: ../../../gdk/wayland/gdk-cusor-wayland.c:242 cursor image size (64x64) not an integermultiple of scale (3)

However, on the system where I set monitors.xml from my script, I see almost the same logs, except the cursor size in the error message is different (10x16 instead of 64x64):

Gdk-Message: Unabel to load  from the cursor theme
Gdk-WARNING: ../../../gdk/wayland/gdk-cusor-wayland.c:242 cursor image size (10x16) not an integermultiple of scale (3)

It seems like I'm missing a few things that happen behind the scenes when the display scale is set. I've tried diffing the contents of dconf dump / but I haven't been able to see anything helpful there. I have noticed that when I manually set the display scale that the system also gets accessibility services turned on, but I don't know if that's relevant. When I check the cursor size in the "Seeing" accessibility section it still says "default" for both approaches.

Does anyone have any suggestions for how to correctly set the system-wide display scale from a script?

Thank you,

Gabe

A select few apps seem to have multiplied. Going from 1 instance, to 41, including the original. I checked my downloads, recent files, and found no evidence of me having downloaded these apps. I did however use steam's proton function for game compatibility just recently. However I've used it before and never had this happen. I left my computer on after working on some college stuff, only to come back, open my app dashboard and see a TON of duplicate apps. I seen some posts about two different apps because of file type, but that doesn't seem applicable here.

The applications duplicated are:

• All Steam based games.
• Steam Linux Runtime 1.0,2.0,3.0
• Proton Hotfix
• Itch (app/web service client?)

How do I delete all these duplicates?

A screen shot of my dashboard app page and the many windows/apps it has created

I would like to create a bootable USB drive from my iMac so that I can use another computer to boot and run Ubuntu. But, every time I click on the Download link from

https://ubuntu.com/download/desktop/thank-you?version=24.04.3&architecture=amd64&lts=true

it won't download. It starts the download but fails with ubuntu-24.04.3-desktop-amd64.iso

Failed -- fcix.net

This download is suppose to be for either Intel or AMD.

What am I doing wrong?

I have downloaded Xilinx ise 14.7 for my Ubuntu os and now everytime i open my terminal these commands appear

. /opt/Xilinx/14.7/ISE_DS/common/.settings64.sh /opt/Xilinx/14.7/ISE_DS/common

. /opt/Xilinx/14.7/ISE_DS/EDK/.settings64.sh /opt/Xilinx/14.7/ISE_DS/EDK

. /opt/Xilinx/14.7/ISE_DS/PlanAhead/.settings64.sh /opt/Xilinx/14.7/ISE_DS/PlanAhead

. /opt/Xilinx/14.7/ISE_DS/ISE/.settings64.sh /opt/Xilinx/14.7/ISE_DS/ISE  

what does this mean? and does this have to do anything why my lap feels slow?

I got a few CWWK Intel Alder Lake N100 systems that have 32G of RAM and a 2TB SSD, plan on using them as standalone servers for network support duties (one will be running Zabbix, another will be running OpenVPN for example).

Been installing Ubuntu 24.04.3 LTS server on them. When the time comes to setup the storage I just use the entire SSD without doing any partitioning on the SSD itself. Below is the resultant system after the installation process.

It has been suggested to me that the server doing the Zabbix application should have its own sized partition for /var and /swap mount points.

I guess the question would be what sort of sizes should I do for /var and /swap and another needed partitions?

$ df -h
Filesystem                         Size  Used Avail Use% Mounted on
tmpfs                              3.2G  1.8M  3.2G   1% /run
efivarfs                           192K   85K  103K  46% /sys/firmware/efi/efivars
/dev/mapper/ubuntu--vg-ubuntu--lv   98G   33G   61G  35% /
tmpfs                               16G     0   16G   0% /dev/shm
tmpfs                              5.0M     0  5.0M   0% /run/lock
/dev/nvme0n1p2                     2.0G  103M  1.7G   6% /boot
/dev/nvme0n1p1                     1.1G  6.2M  1.1G   1% /boot/efi
tmpfs                              3.2G   12K  3.2G   1% /run/user/1000

Other than yt-dlp are there any other packages in the Kubuntu/Udubuntu base install that contain inappropriate content for children?

I'm putting together a laptop build for a 7 year old. I first tried to install Edubuntu but the installer was encountering fatal errors (I tried multiple memory sticks versions, CRC checks etc) plus Gnome is a little too heavy for the hardware... so I ended up installing Kubuntu 25.10 and adding the Edubuntu meta on top.

By coincidence, I noticed that yt-dlp is installed by default and its extractor scripts include lots of naughty words and direct links to explicit content.

The 7 year old won't have sudo, I'll apply parental controls, and internet access etc will be filtered (I might even make it offline) however if they can't even read the system files then it defeat the purpose of them learning what Linux is and how it works.

Which circles back to the original question. Other than yt-dlp are there any other packages I should look out for that include inappropriate content for children?

First off, I’m 88 years old. I brought a mini PC with Ubuntu installed. I figured it would keep my old brain active. Everything was fine until I tried to upgrade to ubuntu-24.04.3-desktop-amd64, from a bootable USB. When I start the mini it is asking for a password. I used the password I originally used, but it says the password is invalid. So at this point the mini is useless. BOSGAME Ubuntu Linux Mini PC,Intel N95 16GB RAM 512GB SSD Mini Server Computers,Micro PC 4K Triple Display/WiFi5/BT4.2/USB3.2/2.5G LAN for Home/Office, Black

Intel I219-LM on Lenovo M90n-1 IoT detected in PCI but e1000e probe fails on Ubuntu 24.04.3 LTS Server

I’m trying to use the second Ethernet port (Intel I219-LM) on a Lenovo ThinkCentre M90n-1 IoT running Ubuntu 24.04.3 LTS Server, but the NIC never initializes. The Realtek NIC works normally.

Ubuntu does detect the I219-LM in lspci, and the correct Intel driver (e1000e) loads, but the driver probe fails with error -2, and the interface never appears in ip a.

System

• Model: Lenovo ThinkCentre M90n-1 IoT
• BIOS: Latest available from Lenovo support website
• OS: Ubuntu 24.04.3 LTS Server (fresh, clean install)
• NIC Port 1: Realtek RTL8111/8168 → works
• NIC Port 2: Intel I219-LM → detected by PCI but does not work

Diagnostic information

PCI device is detected:

lspci | grep -i i219
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (6) I219-LM (rev 30)

Driver module loads, but probe fails:

lsmod | grep e1000
e1000e                356352  0

sudo dmesg | grep -i e1000e
[    1.113767] e1000e: Intel(R) PRO/1000 Network Driver
[    1.114432] e1000e: Copyright(c) 1999 - 2015 Intel Corporation.
[    1.116625] e1000e 0000:00:1f.6: Interrupt Throttling Rate set to dynamic conservative mode
[    1.757815] e1000e: probe of 0000:00:1f.6 failed with error -2

Detailed PCI dump:

sudo lspci -vvv -s 00:1f.6

00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (6) I219-LM (rev 30)
  DeviceName: Onboard - Ethernet
  Subsystem: Lenovo Ethernet Connection (6) I219-LM
  Control: I/O- Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
  Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
  Interrupt: pin A routed to IRQ 16
  IOMMU group: 11
  Region 0: Memory at a1300000 (32-bit, non-prefetchable) [size=128K]
  Capabilities: [c8] Power Management version 3
    Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA PME(D0+,D1-,D2-,D3hot+,D3cold+)
    Status: D0 NoSoftRst+ PME-Enable- DSel=0 DScale=1 PME-
  Capabilities: [d0] MSI: Enable- Count=1/1 Maskable- 64bit+
    Address: 0000000000000000  Data: 0000
  Kernel modules: e1000e

Only the Realtek NIC appears in ip a:

ip a
1: lo:  mtu 65536 qdisc noqueue state UNKNOWN group default qlen 1000
    link/loopback 00:00:00:00:00:00 brd 00:00:00:00:00:00
    ....
2: enp2s0:  mtu 1500 qdisc mq state UP group default qlen 1000
    link/ether ... brd ff:ff:ff:ff:ff:ff
    inet 192.168.2.35/24 metric 100 brd 192.168.2.255 scope global dynamic enp2s0
       valid_lft 3565sec preferred_lft 3565sec
    inet6 .../64 scope link 
       valid_lft forever preferred_lft forever

Output shows:

• lo
• enp2s0 (Realtek RTL8111/8168 with a valid IPv4 address)

The Intel NIC never appears as an interface (normally it would be something like enp0s...).

What I have tried

• Fresh reinstall of Ubuntu 24.04.3 LTS Server
• Updated to latest Lenovo BIOS
• Verified both NICs are enabled in BIOS
• Swapped cables, ports, and switches
• Booted with the Intel port connected and disconnected
• Confirmed the e1000e kernel module is loaded

Behavior is always the same:

• The Realtek NIC works perfectly.
• The Intel I219-LM is visible in PCI, but e1000e fails to probe it and no network interface is created.

Additional test: Windows 10 works on the same hardware

To rule out hardware failure, I booted the exact same ThinkCentre M90n-1 IoT from a Windows 10 Pro portable USB with the Ethernet cable plugged only into the Intel I219-LM port (Realtek port unused):

• Windows detected the Intel NIC.
• It obtained an IP address via DHCP.
• The machine was reachable on the LAN and had working network connectivity.

So:

• The Intel I219-LM hardware and port are known-good.
• BIOS configuration appears sufficient for the NIC to operate.
• The failure seems specific to the Ubuntu 24.04.3 + in-kernel e1000e + Lenovo OEM NVM/firmware combination, not a physical or cabling issue.

Intel documentation

Intel’s official driver README for this NIC says:

• I219-LM is supported
• Ubuntu 24.04 LTS is supported

Intel also states:

“If you purchased an OEM-branded system, contact your OEM for an SW/FW version compatible with your exact NVM. Using mismatched SW/FW versions may affect performance or stability.”

This suggests Lenovo may use a Lenovo-specific NVM/firmware for the I219-LM on this model.

Question for AskUbuntu

• Is this a known issue with the I219-LM on Ubuntu 24.04.3 LTS Server (kernel 6.8) on the ThinkCentre M90n-1 IoT?
• Does the in-kernel e1000e driver need a different version or special module options for this OEM firmware/NVM?
• Could this be caused by an Intel NVM or ME/UEFI firmware mismatch on this Lenovo platform?
• How can I further debug what probe of 0000:00:1f.6 failed with error -2 actually means here?

Any help or pointers on getting the Intel I219-LM to initialize properly on this system would be greatly appreciated.

I'm running a kasm workspaces deployment on my home server (ubuntu latest long-term support.) WARP conflicts with the tunnel and causes an error how do I split my traffic so that the traffic from my kasm containers goes through the WARP tunnel, but the tunnel is not routed through the tunnel?

Not a problem, the opposite: After installing Ubuntu 24.04 LTS on a few different machines, it seems there has been a gradual improvement in startup speed after a number of days use, and a number of reboots.

Is this just a matter of my perception, or is Ubuntu actually performing optimization automatically? (At this time, Ubuntu 24.04 appears to be the snappiest OS to load (and execute) on various PC's, so this is certainly not an issue.)

One possibility is that it's a result of updates... periodically, I update using sudo apt -y update && sudo apt -y full-upgrade as well as cleanup with apt autoremove --purge.

When attempting to reinstall blueman and other apt-get functions I get the following message:

sudo apt-get install --reinstall blueman
N: Ignoring file 'google-chro' in directory '/etc/apt/sources.list.d/' as it has no filename extension
E: Conflicting values set for option Signed-By regarding source http://dl.google.com/linux/chrome/deb/ stable: /usr/share/keyrings/google-chrome.gpg != /etc/apt/trusted.gpg.d/google.gpg

Ubuntu 25.10 can not run apt-get refers to google cloud. I am not certain how to perform the recommendations for chrome.

Per the request here is the output of ls -l /etc/apt/sources.list.d

$ ls -l /etc/apt/sources.list.d
total 128
-rw-r--r-- 1 root root  1782 Oct 30 08:13 audio-recorder-ubuntu-ppa-noble.sources
-rw-r--r-- 1 root root  1782 Oct 25 09:24 audio-recorder-ubuntu-ppa-noble.sources.save
-rw-r--r-- 1 root root  1785 Oct 30 08:13 audio-recorder-ubuntu-ppa-oracular.sources
-rw-r--r-- 1 root root  1785 Oct 25 09:24 audio-recorder-ubuntu-ppa-oracular.sources.save
-rw-r--r-- 1 root root  1797 Oct 30 08:13 gezakovacs-ubuntu-ppa-oracular.sources
-rw-r--r-- 1 root root  1797 Oct 25 09:24 gezakovacs-ubuntu-ppa-oracular.sources.save
-rw-r--r-- 1 root root   116 Apr 13  2024 google-chro
-rw-r--r-- 1 root root   116 Nov 13 07:25 google-chrome.list
-rw-rw-r-- 1 root root   192 Oct 25 09:24 google-chrome.list.save
-rw-r--r-- 1 root root 17758 Oct 30 08:13 google-chrome.sources
-rw-r--r-- 1 root root 17758 Oct 25 09:24 google-chrome.sources.save
-rw-r--r-- 1 root root   180 Nov 13 07:07 google.list
-rw-r--r-- 1 root root  1817 Oct 30 08:13 openshot_developers-ubuntu-ppa-noble.sources
-rw-r--r-- 1 root root  1817 Oct 25 09:24 openshot_developers-ubuntu-ppa-noble.sources.save
-rw-r--r-- 1 root root   250 Mar  7  2025 signal-xenial.list.save
-rw-r--r-- 1 root root   216 Oct 30 08:13 ubuntu-esm-apps.sources
-rw-r--r-- 1 root root   216 Oct 25 09:24 ubuntu-esm-apps.sources.save
-rw-r--r-- 1 root root   220 Oct 30 08:13 ubuntu-esm-infra.sources
-rw-r--r-- 1 root root   220 Oct 25 09:24 ubuntu-esm-infra.sources.save
-rw-r--r-- 1 root root   394 Oct 30 08:13 ubuntu.sources
-rw-r--r-- 1 root root  2580 Apr 10  2024 ubuntu.sources.curtin.orig
-rw-r--r-- 1 root root   383 Oct 25 09:24 ubuntu.sources.save
-rw-r--r-- 1 root root  1813 Oct 30 08:13 ubuntuhandbook1-ubuntu-audio-recorder-oracular.sources
-rw-r--r-- 1 root root  1813 Oct 25 09:24 ubuntuhandbook1-ubuntu-audio-recorder-oracular.sources.save

I recently installed chrome. How can I correct this error?

I want my browser to be as snappy as possible and I find all the recently introduced AI features to be unnecessary. How to disable all of them?

This question is relevant to Ask Ubuntu because Firefox is Ubuntu's default browser, and optimizing Ubuntu systems for better performance is considered on topic here.

I accidentally unplugged the power supply cord while I was using my desktop computer (Ubuntu 24.04.2 LTS).

After booting my PC, I noticed two uncommon behaviors:

• The Ethernet cable was not being detected. I can assert this because normally the ip address would similar to 192.168.1.XXX under a certain network interface, but when I executed that command, that IP address was not shown. I tried executing ping www.gnu.org, but I got ping: www.gnu.org: Name or service not known.
• After logging-in, the screen resolution was very low. I think this happened because the GPU was not being used.

I did a cold reboot, but those two behaviors persist.

I thought this was a hardware problem related to the motherboard caused by the sudden interruption of power. To discard this possibility, I started Ubuntu 24.04.1 LTS using a bootable USB with the installation image and the Ethernet port was being used (I can assert this because I could search information for the Internet, this PC doesn't have a Wi-Fi card) and the resolution of the GUI was high and smooth which makes me think that the GPU was being used. I disconnected the USB and rebooted my computer but the two problems described above persisted. I find it strange that the Ethernet port is used while using the USB, but it is not used while starting Ubuntu which is installed on my desktop computer.

Please let me know if you need further information or the output of some command to troubleshoot this issue and I will insert it at the bottom of this question.

UPDATE (2025-08-22T15:29:17+00:00)

I created a question on Ubuntu Forums: https://discourse.ubuntu.com/t/ethernet-cable-and-gpu-doesnt-seem-to-be-detected-after-a-power-outage/66729

UPDATE (2025-11-18T18:41:55-0500)

I am having the same issue, but this time, the problem was not caused by a power outage, but because I accidentally pressed the power button while my system was on. When I turn on my system, the login screen is shown at a very low resolution (it seems 800x600)

The post on Ubuntu Discourse had some relevant information to solve the issue, but as of time of writing, when I click on the link, the following message is shown: "Oops! That page doesn’t exist or is private.". I have some vague memories of the answer of that post:

These are the steps that I followed this time to troubleshoot the issue:

1. Edit grub configuration file

Set the following variables in the configuration file:

GRUB_TIMEOUT_STYLE=menu
GRUB_TIMEOUT=10

1. Execute "sudo update-grub"
2. Turn off system
3. Turn on system
4. In GRUB menu, press "e". Then, press "Advanced options for Ubuntu". The following options were shown:

Ubuntu, with Linux 6.14.0-34-generic
Ubuntu, with Linux 6.14.0-34-generic (recovery mode)
Ubuntu, with Linux 6.14.0-33-generic
Ubuntu, with Linux 6.14.0-33-generic (recovery mode)

I selected "Ubuntu, with Linux 6.14.0-33-generic". I inferred the GPU was correctly detected because the login screen was shown in the appropriate resolution: 2560x1080.

1. sudo apt update
2. sudo apt upgrade
3. Turn off computer
4. Turn on computer

The problem persisted.

1. Turn off computer.
2. Turn on computer.
3. In GRUB menu, press "e". A new option was added in "Advanced options for Ubuntu":

Ubuntu, with Linux 6.14.0-35-generic
Ubuntu, with Linux 6.14.0-35-generic (recovery mode)
Ubuntu, with Linux 6.14.0-34-generic
Ubuntu, with Linux 6.14.0-34-generic (recovery mode)
Ubuntu, with Linux 6.14.0-33-generic
Ubuntu, with Linux 6.14.0-33-generic (recovery mode)

When I selected "Ubuntu, with Linux 6.14.0-35-generic", the problem persisted.

I will be using "Ubuntu, with Linux 6.14.0-33-generic" for the time being.

UPDATE (2025-11-18T18:59:37-0500)

I checked my mail and I was able to find the messages from the post. The user who replied my post recommended executing sudo apt dist-upgrade. So, I followed these steps:

1. Turn on computer.
2. In GRUB menu, press "e"

The following options were shown:

Ubuntu, with Linux 6.14.0-35-generic
Ubuntu, with Linux 6.14.0-35-generic (recovery mode)
Ubuntu, with Linux 6.14.0-34-generic
Ubuntu, with Linux 6.14.0-34-generic (recovery mode)
Ubuntu, with Linux 6.14.0-33-generic
Ubuntu, with Linux 6.14.0-33-generic (recovery mode)

I selected "Ubuntu, with Linux 6.14.0-33-generic".

3. Log-in
4. Execute sudo apt dist-upgrade
5. Turn off computer
6. Turn on computer and wait for the timer in the GRUB menu to finish so that the default option is selected

I concluded that the problem was solved because I could see the login screen in full resolution: 2560x1080.

7. Revert the changes that I did in /etc/default/grub so that the GRUB menu is not shown whenever I turn on my computer.

Change from:

GRUB_TIMEOUT_STYLE=menu
GRUB_TIMEOUT=10

to:

GRUB_TIMEOUT_STYLE=hidden
GRUB_TIMEOUT=0

8. Execute sudo update-grub.

I've a curious problem when trying to use proxy server for my docker daemon in Ubuntu 24.04. I configured the proxy according to the manual https://docs.docker.com/engine/daemon/proxy/#systemd-unit-file , but docker info doesn't show the configured proxy, and I also cannot pull, because no proxy is used. Has anyone an idea what I've might done wrong?

What I've done:

sudo apt install docker.io
sudo snap install docker
sudo mkdir -p /etc/systemd/system/docker.service.d
sudo nano /etc/systemd/system/docker.service.d/http-proxy.conf
sudo systemctl daemon-reload
sudo systemctl restart docker
sudo adduser myuser docker

cat /etc/systemd/system/docker.service.d/http-proxy.conf

[Service]
Environment="HTTP_PROXY=http://myproxy.mysubsubdomain.mysubdomain.mydomain:8080"
Environment="HTTPS_PROXY=http://myproxy.mysubsubdomain.mysubdomain.mydomain:8080"
Environment="NO_PROXY=localhost,127.0.0.1,mysubsubdomain.mysubdomain.mydomain"

sudo systemctl show --property=Environment docker

Environment=HTTP_PROXY=http://myproxy.mysubsubdomain.mysubdomain.mydomain:8080 
HTTPS_PROXY=http://myproxy.mysubsubdomain.mysubdomain.mydomain:8080 
NO_PROXY=localhost,127.0.0.1,mysubsubdomain.mysubdomain.mydomain

docker info

Client:
 Version:    26.1.3
 Context:    default
 Debug Mode: false

Server:
 Containers: 0
  Running: 0
  Paused: 0
  Stopped: 0
 Images: 0
 Server Version: 27.5.1
 Storage Driver: overlay2
  Backing Filesystem: extfs
  Supports d_type: true
  Using metacopy: false
  Native Overlay Diff: true
  userxattr: false
 Logging Driver: json-file
 Cgroup Driver: systemd
 Cgroup Version: 2
 Plugins:
  Volume: local
  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local splunk syslog
 Swarm: inactive
 Runtimes: io.containerd.runc.v2 runc
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: bcc810d6b9066471b0b6fa75f557a15a1cbf31bb
 runc version:
 init version: de40ad0
 Security Options:
  apparmor
  seccomp
   Profile: builtin
  cgroupns
 Kernel Version: 6.8.0-57-generic
 Operating System: Ubuntu Core 22
 OSType: linux
 Architecture: x86_64
 CPUs: 2
 Total Memory: 15.61GiB
 Name: mydockerhost
 ID: "MY_ID"
 Docker Root Dir: /var/snap/docker/common/var-lib-docker
 Debug Mode: false
 Experimental: false
 Insecure Registries:
  127.0.0.0/8
 Live Restore Enabled: false

docker pull hello-world

Using default tag: latest
Error response from daemon: Get "https://registry-1.docker.io/v2/": dial tcp 3.94.224.37:443: i/o timeout

nc -vz myproxy.mysubsubdomain.mysubdomain.mydomain 8080

Connection to myproxy.mysubsubdomain.mysubdomain.mydomain (10.0.0.8) 8080 port [tcp/*] succeeded!

On my older Ubuntu 22.04 system it works with the same settings:

docker pull hello-world

Using default tag: latest
latest: Pulling from library/hello-world
Digest: sha256:7e1a4e2d11e2ac7a8c3f768d4166c2defeb09d2a750b010412b6ea13de1efb19
Status: Image is up to date for hello-world:latest
docker.io/library/hello-world:latest

Ubuntu 24.04 LTS fresh install. Installed from USB a few hours ago, and then updated to latest. No extra software installed yet.

After clicking 'Remote Desktop' in the 'System' group in Settings, the Settings app itself freezes. There is a small delay, 1-2 seconds maybe, but it is both quick and 100% reproducible.

Hardware is a HP Elitedesk 800 G2 Mini 35W. i5 6500T 4C CPU, 8GB RAM, and 256GB SSD. The disk was partitioned and formatted as part of the Ubuntu installation - no Windows left. Generic corded Logitech USB mouse, and a Logitech cordless keyboard with a unifying receiver. Screen connected via Displayport to HDMI adapter.

There are no proprietary drivers in use, and I don't seem to have any firmware to update (not sure how it works, but I only have the 'Update Checksums' and 'Verify Firmware' buttons visibile, and neither seems to do anything)

I've tested changing keyboard and mouse, although I only had two Logitech cordless keyboards to choose from, so if it's something with Logitech Unifying receivers in general, I need to get another keyboard.

I'm reasonably tech-savvy, but I haven't used Linux for about 15 years.

Any ideas?

EDIT: To answer @graham: This is, to the best of my knowledge so far, the only thing that freezes. And I am posting this from Firefox running on the computer in question. /EDIT

CMake is complaining that I don't have a working c++ compiled because of the error:

ld.lld: error: unable to find library -lstdc++

I've narrowed it down the following:

• Given the program int main(){return 0;}
• And the commands

/usr/bin/clang++ -std=gnu++17 -MD -MT prog.o -MF prog.d -o prog.o -c prog.cpp
/usr/bin/clang++ -fuse-ld=lld prog.o -o prog

The second command is failing with the given error. How can I fix my Ubuntu C++ installation to get this working?

After a fresh installation of Ubuntu 22.04 I'm not able to use my wifi. The card is the intel Wi-Fi 6 AX200.

During installation I had no trouble using the card downloading updates. After the installation I can't use wifi.

I use a dual boot with Windows 11.

I tried to fix it with sudo apt install backport-iwlwifi-dkms. After rebooting there was no change.

After that I installed the official firmware from Intel for this card by unzipping the ucode file and transferred it to /lib/firmware. After a reboot it worked.

a few hours later I started into win11 where I got a prompt regarding some firmware files that where tried to install. After googling the name it was about the mentioned network card (before I never saw this and didn't have issues in win11 with the card). After that I just forced closing the window and never saw this dialog again (I didn't know what to do and I also don't know if there is a correlation, but I wanted to mentioned it)

After my next boot to Ubuntu the network drivers where gone in terms of I couldn't use wifi so I reproduced the initial fix, but I had no luck.

$ lshw -k
Kernel driver in use: pcieport
07:00.0 Network controller: Intel Corporation Wi-Fi 6 AX200 (rev 1a)
    Subsystem: Intel Corporation Wi-Fi 6 AX200NGW
    Kernel modules: iwlwifi
09:00.0 Ethernet controller: Intel Corporation I211 Gigabit Network Connection (rev 03)
    Subsystem: ASRock Incorporation I211 Gigabit Network Connection
    Kernel driver in use: igb
    Kernel modules: igb

$ rfkill list
0: hci0: Bluetooth
    Soft blocked: no
    Hard blocked: no

$ dmesg | grep iwl
[    3.712065] iwlwifi 0000:07:00.0: enabling device (0000 -> 0002)
[    3.747228] iwlwifi 0000:07:00.0: CSR_RESET = 0x10
[    3.747238] iwlwifi 0000:07:00.0: Host monitor block 0x0 vector 0x0
[    3.747247] iwlwifi 0000:07:00.0:     value [iter 0]: 0x3f7f0430
[    3.747255] iwlwifi 0000:07:00.0:     value [iter 1]: 0x3f7f0c30
[    3.747263] iwlwifi 0000:07:00.0:     value [iter 2]: 0x3f7f8830
[    3.747271] iwlwifi 0000:07:00.0:     value [iter 3]: 0x3f7f0030
[    3.747278] iwlwifi 0000:07:00.0:     value [iter 4]: 0x3f7f0430
[    3.747286] iwlwifi 0000:07:00.0:     value [iter 5]: 0x3f7f8430
[    3.747294] iwlwifi 0000:07:00.0:     value [iter 6]: 0x3f7f8030
[    3.747302] iwlwifi 0000:07:00.0:     value [iter 7]: 0x3f7f0030
[    3.747309] iwlwifi 0000:07:00.0:     value [iter 8]: 0x3f7f0c30
[    3.747317] iwlwifi 0000:07:00.0:     value [iter 9]: 0x3f7f0c30
[    3.747325] iwlwifi 0000:07:00.0:     value [iter 10]: 0x3f7f0030
[    3.747332] iwlwifi 0000:07:00.0:     value [iter 11]: 0x3f7f0030
[    3.747340] iwlwifi 0000:07:00.0:     value [iter 12]: 0x3f7f8430
[    3.747348] iwlwifi 0000:07:00.0:     value [iter 13]: 0x3f7f8430
[    3.747356] iwlwifi 0000:07:00.0:     value [iter 14]: 0x3f7f8030
[    3.747361] iwlwifi 0000:07:00.0: Host monitor block 0x0 vector 0x1
[    3.747369] iwlwifi 0000:07:00.0:     value [iter 0]: 0x044466c2
[    3.747377] iwlwifi 0000:07:00.0:     value [iter 1]: 0x044466c2
[    3.747385] iwlwifi 0000:07:00.0:     value [iter 2]: 0x044466c2
[    3.747392] iwlwifi 0000:07:00.0:     value [iter 3]: 0x044466c2
[    3.747400] iwlwifi 0000:07:00.0:     value [iter 4]: 0x044466c2
[    3.747408] iwlwifi 0000:07:00.0:     value [iter 5]: 0x044466c2
[    3.747416] iwlwifi 0000:07:00.0:     value [iter 6]: 0x044466c2
[    3.747423] iwlwifi 0000:07:00.0:     value [iter 7]: 0x044466c2
[    3.747431] iwlwifi 0000:07:00.0:     value [iter 8]: 0x044466c2
[    3.747438] iwlwifi 0000:07:00.0:     value [iter 9]: 0x044466c2
[    3.747446] iwlwifi 0000:07:00.0:     value [iter 10]: 0x044466c2
[    3.747454] iwlwifi 0000:07:00.0:     value [iter 11]: 0x044466c2
[    3.747461] iwlwifi 0000:07:00.0:     value [iter 12]: 0x044466c2
[    3.747469] iwlwifi 0000:07:00.0:     value [iter 13]: 0x044466c2
[    3.747477] iwlwifi 0000:07:00.0:     value [iter 14]: 0x044466c2
[    3.747482] iwlwifi 0000:07:00.0: Host monitor block 0x0 vector 0x6
[    3.747490] iwlwifi 0000:07:00.0:     value [iter 0]: 0xb00c4471
[    3.747498] iwlwifi 0000:07:00.0:     value [iter 1]: 0xf00c4471
[    3.747506] iwlwifi 0000:07:00.0:     value [iter 2]: 0xe00c4471
[    3.747513] iwlwifi 0000:07:00.0:     value [iter 3]: 0xe00c4471
[    3.747521] iwlwifi 0000:07:00.0:     value [iter 4]: 0xf00c4471
[    3.747529] iwlwifi 0000:07:00.0:     value [iter 5]: 0xb00c4471
[    3.747536] iwlwifi 0000:07:00.0:     value [iter 6]: 0xa00c4471
[    3.747544] iwlwifi 0000:07:00.0:     value [iter 7]: 0xe00c4471
[    3.747551] iwlwifi 0000:07:00.0:     value [iter 8]: 0xb00c4471
[    3.747559] iwlwifi 0000:07:00.0:     value [iter 9]: 0xb00c4471
[    3.747567] iwlwifi 0000:07:00.0:     value [iter 10]: 0xe00c4471
[    3.747574] iwlwifi 0000:07:00.0:     value [iter 11]: 0xe00c4471
[    3.747582] iwlwifi 0000:07:00.0:     value [iter 12]: 0xf00c4471
[    3.747590] iwlwifi 0000:07:00.0:     value [iter 13]: 0xb00c4471
[    3.747598] iwlwifi 0000:07:00.0:     value [iter 14]: 0xa00c4471
[    3.747603] iwlwifi 0000:07:00.0: Host monitor block 0x22 vector 0x0
[    3.747611] iwlwifi 0000:07:00.0:     value [iter 0]: 0x00000000
[    3.747829] iwlwifi: probe of 0000:07:00.0 failed with error -110

After I installed Ubuntu 20.04.4 LTS in my PC, it shows --

Installing, this may take a few minutes...
WslRegisterDistribution failed with error: 0x80070422
Error: 0x80070422 The service cannot be started, either because it is disabled or because it has no enabled devices associated with it.

Press any key to continue...

I'm not sure what I should do as pressing any key does nothing but closes the terminal. P.S: I'm using Windows10

I have newly installed Ubuntu 22.04 LTS on an old desktop.

I managed to install nextcloud server version 24. I am trying to find the trusted domain php file to add a trusted domain. Can anyone point out the path to get there, or any source of info where I can read about it? I can't find the information on the nextcloud forums.

I used to be able to find it in /usr/local/www/nextcloud/config/config.php

Bluetooth has worked on my Lenovo W530 equipped with Xubuntu 20.04. When it worked last, lsusb showed the adapter as

Bus 001 Device 005: ID 0a5c:21e6 Broadcom Corp. BCM20702 Bluetooth 4.0 [ThinkPad]

but now it is missing in the output of lsusb.

$ sudo systemctl status bluetooth
[sudo] Passwort für verwalter:
● bluetooth.service - Bluetooth service
     Loaded: loaded (/lib/systemd/system/bluetooth.service; enabled; vendor preset: enabled)
     Active: inactive (dead)
       Docs: man:bluetoothd(8)

Nov 15 16:26:49 W530-SSD systemd[1]: Condition check resulted in Bluetooth service being skipped.
$

Looking at /var/log/syslog I found

Nov 15 16:26:49 W530-SSD dbus-daemon[1104]: [system] Activating via systemd: service name='org.bluez' unit='dbus-org.bluez.service' requested by ':1.39' (uid=110 pid=1406 comm="/usr/bin/pulseaudio --daemonize=no --log-target=jo" label="unconfined")
Nov 15 16:26:49 W530-SSD systemd[1]: Condition check resulted in Bluetooth service being skipped.
Nov 15 16:26:49 W530-SSD pulseaudio[1406]: module-rescue-stream is obsolete and should no longer be loaded. Please remove it from your configuration.

Since there is something about pulseaudio in the line above the error message and there is another error message related to it below, they all might be in some relationship.

Where exactly can I find more information on which condition check failed such that Bluetooth was skipped and does not work any longer?

How can I remove the obsolete module-rescue-stream from my configuration?

Installed Ubuntu 21.04 on an Asus Rog Scar Strix 2021 laptop (AMD iGPU and Nvidia dGPU), successfully booted in, installed nvidia-driver-460 (proprietary, tested) drivers using additional drivers tab under the Software & Updates settings GUI.

Rebooted, and now i get stuck at a black screen with a blinking cursor in the top left indefinitely. I can boot in only after Ctrl +Alt + F2, Logging into a session via command line, logging out, then Ctrl + D until the GUI login shows up then i can resume using ubuntu like normal.

There is a quick flash of text before the GUI login screen shows up, displaying two lines of error:

[FAILED] Failed to start Load/Save Screen Backlight Brightness of backlight" acpi_video0

[FAILED] Failed to start Load/Save Screen Backlight Brightness of backlight" amdgpu_b10

uname -a produces Linux Strix 5.11.0-16-generic #17-Ubuntu SMP Wed Apr 14 20:12:43 UTC 2021 x86_64 x86_64 x86_64 GNU/Linux

How Can i remedy this so i am showed the normal GUI login when i start up ?

I do not have lightdm installed, is this something I need ?

Is this related to Ubuntu 21.04 using Wayland ?

Thanks in advance.

Devices:

• Samsung Odyssey G9 Monitor (5,120 x 1,440)
• GeForce RTX 2070 Super (Display Port)

It seems limited at 120hz, I was wondering how I can enable 240hz.

There also does not seem to be any settings to enable HDR & g-sync, any advice on these 3 points would be greatly appreciated.

1. Set refresh rate to 240hz
2. Enable HDR
3. Enable g-sync

Current Driver:

xrandr: the xrandr output (only showing connected results):

Screen 0: minimum 8 x 8, current 5120 x 1440, maximum 32767 x 32767
DP-4 connected primary 5120x1440+0+0 (normal left inverted right x axis y axis) 1mm x 1mm
   3840x1080     59.97 + 239.97   119.97  
   5120x1440    120.00*   59.98  
   2560x1440    239.90   120.00    59.95  
   2560x1080    119.88    60.00    59.94  
   1920x1080    119.88    60.00    59.94  
   1680x1050     59.95  
   1600x900      60.00  
   1440x900      59.89  
   1280x1024     75.02    60.02  
   1280x800      59.81  
   1280x720      60.00  
   1152x864      75.00  
   1024x768      75.03    70.07    60.00  
   800x600       75.00    72.19    60.32    56.25  
   640x480       75.00    72.81    59.94  

The connection between my screen is via the Display Port provided with my monitor, as far as support goes, on Windows I run fine using 240Hz and HDR enabled.

After a day of restarting my computer i finally given up. I had Ubuntu 18.10 installed and worked perfectly and then i got the upgrade prompt and upgraded to 19.04. The upgrade crashed and after that the system was still booting except 80% of the time. Most of the boots resulted in a purple screen and that is all. I tried everything on the web and nothing seams to work. It is very very random. Couldn't find a way to see where it hangs. The frozen boots fo not appear in the journal. If i try to boot the recovery both messages appear so loads the kernel and the other thing and then it hangs. I reinstalled Ubuntu 18.10 (with updates) and had the same problem. I did the upgrade (which this time worked) to 19.04 and same problem. Now I installed Ubuntu 18.04.2 without any updates and i got it working 4/4 boots. I did the updates 400ish mb of updates and then started doing the same thing with the purple screen. I reinstalled the 18.04.2 and didn't do the updates.

I have no other options than to hope.. I have a Zenbook UX433FA and dualboot with Windows. I guess it is one of the packages that gets updated on 18.04.2 but i don't know which one.

Thank you.

edit: before the 18.10 reinstall i did a fresh reinstall of 19.04

I am trying to install grub2 from a live CD of lubuntu 16.04, I am following this tutorial, after I mounted the /dev/sda1 in the mnt folder using this commands

sudo mount /dev/sda1 /mnt
sudo mount /dev/sda1 /mnt/boot
sudo mount --bind /dev /mnt/dev

Then changing the root directory :

    sudo chroot /mnt

But when try installing grub using sudo grub-install /dev/sda I get this error :

sudo: unable to resolve host ubuntu
grub-install: error: /usr/lib/grub/i386-pc/modinfo.sh doesn't exist.   Please specify --target or --directory.

I tried turning off the uefi mode from bios but I think that my bios version doesn't even support it because it is from 2005

I'm a noob when it comes to using systemd. I'm running Ubuntu 15.04 with the Hauppauge 2250 TV tuner. Unfortunately, the driver/module for the 2250, "saa7164", is not compatible with suspend/resume so live TV will not work after resuming. So I'm using the following file to stop/resume tvheadend and saa7164:

sudo gedit /lib/systemd/system-sleep/50_tvheadend

Which contains the following scipt:

#!/bin/sh
case "$1" in
  pre/*)
    echo "Entering sleep..." >  /tmp/sleep.log
    echo "Entering sleep"
    cat /proc/acpi/wakeup >> /tmp/sleep.log
    service tvheadend stop
    sleep 1
    modprobe -r tveeprom
    modprobe -r dvb_core
    modprobe -r v4l2_common
    modprobe -r videodev
    modprobe -r saa7164
    sleep 3
    echo "After modprobe..."  >> /tmp/sleep.log
    cat /proc/acpi/wakeup >> /tmp/sleep.log
    ;;
  post/*)
    echo "Awaking from sleep..." >>  /tmp/sleep.log
    echo "Waking up"
    modprobe saa7164
    modprobe videodev
    modprobe v4l2_common
    modprobe dvb_core
    modprobe tveeprom
    sleep 3
    echo "After modprobe..."  >> /tmp/sleep.log
    service tvheadend start
    sleep 1
        \cat /proc/acpi/wakeup >> /tmp/sleep.log
    ;;
esac

For good measure, I made the file executable by everyone:

sudo chmod 755 /lib/systemd/system-sleep/50_tvheadend

But this didn't work. So I ran the commands to start and stop tvheadend in terminal, which worked. But when I tried to stop the saa7164 driver in terminal using "modprobe -r saa7164", it errored. So I followed these instructions on how to unload a kernel module which is in use, but my script attempted to unload all the modules listed in "lsmod | grep saa7164" and failed. So I attempted to run the commands in terminal, as follows:

htpc@htpc-desktop:~$ sudo modprobe -r saa7164
modprobe: FATAL: Module saa7164 is in use

htpc@htpc-desktop:~$ lsmod | grep saa7164
saa7164               131072  -1
tveeprom               24576  1 saa7164
dvb_core              126976  1 saa7164
v4l2_common            16384  1 saa7164
videodev              159744  2 saa7164,v4l2_common

htpc@htpc-desktop:~$ sudo modprobe -r tveeprom
modprobe: FATAL: Module tveeprom is in use.

htpc@htpc-desktop:~$ lsmod | grep tveeprom
tveeprom               24576  1 saa7164

How do I unload the saa7164 driver/module?

I'm using Ubuntu 14.10 on a VirtualBox VM. It installed fine, I was even able to install Guest Additions and a few apps before shutting it down for the day. Now when I try to boot the VM all that loads is the UEFI Interactive shell.

How do I get it to boot back into the normal desktop?

I am trying to recover a disk that has corrupted superblock but I cant seem to unmount the disk at all. I used bcache for the three extra drive after a reboot one of the drive stopped working. so I removed the SSD cache drive and still cant seem to recover the drive

pavs@VAS:~$ lsblk
NAME        MAJ:MIN RM   SIZE RO TYPE MOUNTPOINT
sda           8:0    0 149.1G  0 disk 
├─sda1        8:1    0 133.4G  0 part /
├─sda2        8:2    0     1K  0 part 
└─sda5        8:5    0  15.7G  0 part [SWAP]
sdb           8:16   0   2.7T  0 disk 
└─sdb1        8:17   0   2.7T  0 part 
  └─bcache0 251:0    0   2.7T  0 disk /var/www/html/directlink/FTP1
sdc           8:32   0   1.8T  0 disk 
└─sdc1        8:33   0   1.8T  0 part 
  └─bcache1 251:1    0   1.8T  0 disk 
sdd           8:48   0   1.8T  0 disk 
└─sdd1        8:49   0   1.8T  0 part 
  └─bcache2 251:2    0   1.8T  0 disk



pavs@VAS:~$ sudo fsck.ext4 -v /dev/sdd1
e2fsck 1.42.9 (4-Feb-2014)
/dev/sdd1 is in use.
e2fsck: Cannot continue, aborting.


pavs@VAS:~$ umount -l /dev/sdd
umount: /dev/sdd is not mounted (according to mtab)
pavs@VAS:~$ umount -l /dev/sdd1
umount: /dev/sdd1 is not mounted (according to mtab)


 1072.806897] EXT4-fs (bcache2): ext4_check_descriptors: Checksum for group 640 failed (57199!=0)
[ 1072.806900] EXT4-fs (bcache2): group descriptors corrupted!

I see the linux-hwe-generic package as part of the kernels you can install in Ubuntu.

What is hardware enablement (HWE)?