so basically, there is a problem with my DisplayLink monitor after I upgraded my Ubuntu to 25.10. there is a weird slowdown/flickering on both my second and main monitor (connected via HDMI). it occurs while randomly using the OS, but especially while I'm dragging windows from my main screen to the DisplayLink one. The system is not unusable while it occurs, but it is certainly annoying.

i can record the glitch and upload it if it would be helpful.

any way to fix this?

my system's specs are not an issue, bacause everything works just fine when a normal monitor (my GF's) is connected via DisplayPort. everything was also a-ok on Windows 10 and before Ubuntu upgrade (24.??).

I tried all the solutions that are available on the net (i. e. - those that i could find using Google/DDG etc.). the only thing i haven't tried is installing Asus MB168B's drivers for Linux, 'cause they are not hosted on Asus' webside anymore.

thank you f̶r̶o̶m̶ t̶h̶e̶ m̶o̶u̶n̶t̶a̶u̶i̶n̶ in advance for helping me.

System:

• Minisforum mini PC
• Ryzen 5 7640HS with Radeon 760M integrated graphics
• 16GB RAM
• 1TB NVMe
• Ubuntu 24.04
• Kernel: 6.17.0-1017-oem

The system crashes at boot without the nomodeset kernel parameter. With nomodeset system is stable but running in low resolution without GPU acceleration.

I've tried:

• Clean install Ubuntu 24.04
• OEM kernel installed
• Multiple amdgpu kernel parameters attempted
• GRUB repaired via chroot
• BIOS iGPU set to UMA_Auto

Persistent secondary issue: Invalid environment block error on every boot.

It's odd that I have to unplug the power cable from the socket to initiate power on. Unplugging the barrel connector at I/O does not allow the power button to function. Do you have any ideas?

I am using Ubuntu Studio 24.04.4.

Is it possible to assign a different IP for each user logging in into my laptop ?!

For instance, when userA logs in, the IP of my laptop would be 192.168.178.10

and when userB logs in, the IP of my laptop would be 192.168.178.20

That would be very handy since I am using the "filter" function of my FritzBox in order to filter websites accessed by my laptop...

Best

Vincent

I have recently reconfigured my sendmail for TLS. As part of the validation I have used checktls.com which throws up a few issues. The first concerns a certificate failure which I have been advised can be ignored due to some comments in comp.mail.sendmail newsgroup. The second (which doesn't cause a failure) shows the email to respond to is incorrect ie "admin@mydomain". I have also noted sendmail-{server|client}.cfg files in /etc/mail/tls which would seem to allow the configuration options I need to correct the issues. However, it appears that the certificates are created at install time and I cannot find any information on how to reconfigure them according to these cfg files? Can anyone advise/help me please, as I would like to make everything as clean as possible as I try to convince gmail to unblock our domain due to "poor reputation"?

I do already have spf,dmarc and dkim records, and have recently ensured that my mx server has correct forward and reverse dns ercords (one of the postmaster tools compliance requirements!).

TIA Paul

Title says it all: Has rdist disappeared from 24.04?

(I'm not sure how much more noise I need to get beyond the automated quality sentry standards. There, that did it.)

Why does the library libnvshmem_host.so.3 not get picked up by ldconfig, when similar libraries do?

root@d0fc36265f93:/# ls /usr/lib/x86_64-linux-gnu/nvshmem/12/
libnvshmem_host.so.3            nvshmem_bootstrap_pmi.so.3.0.0   nvshmem_bootstrap_shmem.so.3      nvshmem_transport_ibdevx.so.3.0.0  nvshmem_transport_libfabric.so.3
libnvshmem_host.so.3.3.9        nvshmem_bootstrap_pmi2.so.3      nvshmem_bootstrap_shmem.so.3.0.0  nvshmem_transport_ibgda.so.3       nvshmem_transport_libfabric.so.3.0.0
nvshmem_bootstrap_mpi.so.3      nvshmem_bootstrap_pmi2.so.3.0.0  nvshmem_bootstrap_uid.so.3        nvshmem_transport_ibgda.so.3.0.0   nvshmem_transport_ucx.so.3
nvshmem_bootstrap_mpi.so.3.0.0  nvshmem_bootstrap_pmix.so.3      nvshmem_bootstrap_uid.so.3.0.0    nvshmem_transport_ibrc.so.3        nvshmem_transport_ucx.so.3.0.0
nvshmem_bootstrap_pmi.so.3      nvshmem_bootstrap_pmix.so.3.0.0  nvshmem_transport_ibdevx.so.3     nvshmem_transport_ibrc.so.3.0.0
root@d0fc36265f93:/# ldconfig
root@d0fc36265f93:/# ldconfig -p | grep nccl
    libnccl.so.2 (libc6,x86-64) => /lib/x86_64-linux-gnu/libnccl.so.2
root@d0fc36265f93:/# ldconfig -p | grep nvshmem
root@d0fc36265f93:/#

I installed it with

curl -LO https://developer.download.nvidia.com/compute/cuda/repos/ubuntu2404/x86_64/cuda-keyring_1.1-1_all.deb
sudo dpkg -i cuda-keyring_1.1-1_all.deb

sudo apt-get update
sudo apt-get -y install \
    cuda-toolkit-12-9 \
    cudnn9-cuda-12 \
    libnccl2=2.27.7-1+cuda12.9 \
    libnvshmem3-cuda-12=3.3.9-1

I'm running an executable that depends on libnvshmem_host.so.3. It works if I manually add it with LD_LIBRARY_PATH=/usr/lib/x86_64-linux-gnu/nvshmem/12/, but not without.

I am seeing this both on my host and in a Docker container. Both run 24.04

I have an Orange PI RISC v2 single board computer. This uses an Ubuntu RISC V OS. I am looking for IPTV players that work on RISC V Ubuntu?

I am using Kubuntu 24.04 with Wayland. The launcher apps albert and ulauncher are very useful, and I want to run (either of) them with the meta key without invoking the KDE Menu. How to do this?

Specs:

• Laptop: MSI Thin A15 B7UC

• OS: Ubuntu 24.04

• Kernel: 6.17.0-20-generic

• Codec: Realtek ALC256

• Subsystem ID: 0x14621437

Problem: Internal microphone only records white noise. The external mic jack is also not working properly.

I already tried:

• snd-hda-intel model= (laptop, laptop-dmic, headset-mic, alc256-asus-mic, inv-dmic)

• hdajackretask pin remapping (0x18, 0x19, 0x1a)

• snd_hda_intel.dmic_detect=0 in GRUB

• PipeWire/WirePlumber restart

• firmware-sof-signed installed

aplay -l output:

card 2: Generic_1 [HD-Audio Generic], device 0: ALC256 Analog

I have an ASUS Vivobook 18 M1807HA with an AMD Radeon 780M integrated GPU running Ubuntu 24.04 (kernel 6.17.0-20-generic).

Problem

When running on battery power only, my laptop generates constant USB device connection/disconnection sounds (the "ding-dong" notification) every 60-90 seconds. The desktop icons sometimes refresh/update when this happens.

This does NOT happen when the AC adapter is plugged in.

What I've tried

I've investigated extensively and found that:

1. Running sudo udevadm monitor shows constant drm/card1 change events:

KERNEL [1192.228486] change /devices/pci0000:00/0000:00:08.1/0000:03:00.0/drm/card1 (drm) UDEV
[1192.261376] change /devices/pci0000:00/0000:00:08.1/0000:03:00.0/drm/card1 (drm) KERNEL [1231.346665] change /devices/pci0000:00/0000:00:08.1/0000:03:00.0/drm/card1 (drm) UDEV
[1231.370399] change /devices/pci0000:00/0000:00:08.1/0000:03:00.0/drm/card1 (drm)

2. Setting amdgpu.runpm=0 in GRUB does not resolve the issue
3. Disabling WiFi does not resolve the issue
4. power_dpm_force_performance_level remains unchanged during events
5. No error messages appear in dmesg

Workaround

Disabling system event sounds stops the audible notification:

gsettings set org.gnome.desktop.sound event-sounds false

However, the underlying issue (constant drm change events) persists.

Questions

1. Is this a known bug with the AMD Radeon 780M on battery power?
2. Has anyone else with recent AMD Ryzen AI laptops experienced this?
3. Is there a proper fix beyond disabling notification sounds?

I've already reported this as a bug to the AMD DRM developers, but I'm curious if others in the Ubuntu community have encountered this issue.

System info:

• Laptop: ASUS Vivobook 18 M1807HA
• GPU: AMD Radeon 780M (integrated)
• CPU: AMD Ryzen 7 260
• Kernel: 6.17.0-20-generic
• Distribution: Ubuntu 24.04

I am about 3-4 weeks new to Ubuntu, downloading it in a bid to not install Windows 11, and for those weeks I've been trying my hardest to get my Steam games working on this device, to no avail.

Some games do work. I was able to get PEAK working on my computer after a LOT of setup, and single player games/really old point and clicks (e.g. Dave the Diver, Sam and Max Hit the Road, IHNMAIMS) work perfectly (though this could just be because of how simplistic they are).

Games such as Deadlock, Marvel Rivals, and The Outlast Trials, more high-fidelity games with a high amount of multiplayer however don't boot up. The best I've gotten is Deadlock, which I've been able to get the launch screen up until it crashes. Unfortunately all the answers I've seen on this website are either not working, or are simply too complex for my newbie brain to comprehend. I have gamemode installed and configured, GeProton is installed and applied to all desired games, ProtonTricks is installed, though I have no idea idea how to use it, and my Driver package is nvidia-driver-535.

Here is the last terminal log I recorded with Deadlock, gained by running Steam through Terminal. If I had to guess what the problem was, it would be the system is not recognizing libgamemode.so, despite it being on the device.

wine: using kernel write watches, use_kernel_writewatch 1.
fsync: up and running.
wine: using kernel write watches, use_kernel_writewatch 1.
wine: using kernel write watches, use_kernel_writewatch 1.
wine: using kernel write watches, use_kernel_writewatch 1.
wine: using kernel write watches, use_kernel_writewatch 1.
wine: using kernel write watches, use_kernel_writewatch 1.
wine: using kernel write watches, use_kernel_writewatch 1.
wine: using kernel write watches, use_kernel_writewatch 1.
wine: using kernel write watches, use_kernel_writewatch 1.
wine: using kernel write watches, use_kernel_writewatch 1.
wine: using kernel write watches, use_kernel_writewatch 1.
Fossilize INFO: Setting autogroup scheduling.
Fossilize INFO: Setting autogroup scheduling.
Game Recording - would start recording game 1422450, but recording for this game is disabled
Adding process 135751 for gameID 1422450
chdir "/home/wolfwitchery/.steam/debian-installation/steamapps/common/Deadlock"
ERROR: ld.so: object '/home/wolfwitchery/.steam/debian-installation/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
WARNING: discarding _NET_WM_PID 3 as invalid for X11 window - use specialized XCB_X11_TO_PID function!
ERROR: ld.so: object '/home/wolfwitchery/.steam/debian-installation/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Adding process 135752 for gameID 1422450
ERROR: ld.so: object '/home/wolfwitchery/.steam/debian-installation/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
ERROR: ld.so: object '/home/wolfwitchery/.steam/debian-installation/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
gamemodeauto: 
ERROR: ld.so: object 'libgamemodeauto.so.0' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object '/home/wolfwitchery/.steam/debian-installation/ubuntu12_64/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS64): ignored.
ERROR: ld.so: object '/home/wolfwitchery/.steam/debian-installation/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Adding process 135767 for gameID 1422450
ERROR: ld.so: object '/home/wolfwitchery/.steam/debian-installation/ubuntu12_32/gameoverlayrenderer.so' from LD_PRELOAD cannot be preloaded (wrong ELF class: ELFCLASS32): ignored.
Adding process 135768 for gameID 1422450
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
Adding process 135851 for gameID 1422450
ProtonFixes[135851] INFO: Running protonfixes
ProtonFixes[135851] INFO: Running checks
ProtonFixes[135851] INFO: All checks successful
ProtonFixes[135851] INFO: Using global defaults for "Deadlock" (1422450)
ProtonFixes[135851] INFO: No global protonfix found for "Deadlock" (1422450)
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
Adding process 135853 for gameID 1422450
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
Adding process 135854 for gameID 1422450
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
wine: using kernel write watches, use_kernel_writewatch 1.
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
fsync: up and running.
Adding process 135856 for gameID 1422450
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
wine: using kernel write watches, use_kernel_writewatch 1.
Adding process 135859 for gameID 1422450
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
wine: using kernel write watches, use_kernel_writewatch 1.
Adding process 135861 for gameID 1422450
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
wine: using kernel write watches, use_kernel_writewatch 1.
Adding process 135865 for gameID 1422450
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
wine: using kernel write watches, use_kernel_writewatch 1.
Adding process 135871 for gameID 1422450
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
wine: using kernel write watches, use_kernel_writewatch 1.
Adding process 135880 for gameID 1422450
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
wine: using kernel write watches, use_kernel_writewatch 1.
Adding process 135892 for gameID 1422450
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
wine: using kernel write watches, use_kernel_writewatch 1.
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
wine: using kernel write watches, use_kernel_writewatch 1.
Adding process 135909 for gameID 1422450
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
wine: using kernel write watches, use_kernel_writewatch 1.
Setting breakpad minidump AppID = 1422450
Steam_SetMinidumpSteamID:  Caching Steam ID:  76561198817498078 [API loaded no]
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
wine: using kernel write watches, use_kernel_writewatch 1.
Adding process 135926 for gameID 1422450
Fossilize INFO: Overriding serialization path: "/home/wolfwitchery/.steam/debian-installation/steamapps/shadercache/1422450/fozpipelinesv6/steamapprun_pipeline_cache".
wine: setpriority 3 for pid -1 failed: 3
wine: setpriority 3 for pid -1 failed: 3
wine: setpriority 3 for pid -1 failed: 3
wine: setpriority 3 for pid -1 failed: 3
wine: setpriority 3 for pid -1 failed: 3
wine: setpriority 3 for pid -1 failed: 3
wine: setpriority 3 for pid -1 failed: 3
wine: setpriority 3 for pid -1 failed: 3
04/16 21:54:00 minidumps folder is set to /tmp/dumps
04/16 21:54:00 Init: Installing breakpad exception handler for appid(gameoverlayui)/version(20260313015227)/tid(135988)
04/16 21:54:00 Init: Installing breakpad exception handler for appid(gameoverlayui)/version(1.0)/tid(135988)
wine: setpriority -10 for pid -1 failed: 3
wine: setpriority -1 for pid -1 failed: 3
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
gamemodeauto: dlopen failed - libgamemode.so: cannot open shared object file: No such file or directory
pid 135857 != 135856, skipping destruction (fork without exec?)
Game Recording - game stopped [gameid=1422450]
Removing process 135926 for gameID 1422450
Removing process 135909 for gameID 1422450
Removing process 135892 for gameID 1422450
Removing process 135880 for gameID 1422450
Removing process 135871 for gameID 1422450
Removing process 135865 for gameID 1422450
Removing process 135861 for gameID 1422450
Removing process 135859 for gameID 1422450
Removing process 135856 for gameID 1422450
Removing process 135854 for gameID 1422450
Removing process 135853 for gameID 1422450
Removing process 135851 for gameID 1422450
Removing process 135768 for gameID 1422450
Removing process 135767 for gameID 1422450
Removing process 135752 for gameID 1422450
Removing process 135751 for gameID 1422450
reaping pid: 135988 -- gameoverlayui

My specs are this currently. Please note that before downloading Ubuntu, I was able to get these games running nearly perfectly.

Static hostname: wolfwitchery 
Icon name: computer-desktop  
Chassis: desktop 🖥️
Machine ID: 45b0a1bba4b14060a6fb02232925f4e3
Boot ID: 59b851cc9e3649a3af351c2dae44d3b1
Operating System: Ubuntu 24.04.4 LTS              
Kernel: Linux 6.17.0-20-generic
Architecture: x86-64
Hardware Vendor: Dell Inc.
Hardware Model: Precision Tower 7810
Firmware Date: Mon 2020-10-19
Firmware Age: 5y 5month 3w 1d   

Please help me with this. I'm at my wits end, am not going back to Windows for the life of me, and I not really welcome to the idea of booting another OS such as Arch and drafting all my files to that system just to have a better chance. It's already been a pain in the ass just to get Ubuntu working.

Laptop: HP OMEN 16-wd0xxx
CPU: i5-1340H
GPU: RTX 4050
OS: Ubuntu 22.04 / 24.04

Problem:
Fan speed is not controllable on Linux. Fans either run incorrectly or cannot be accessed.

What I tried:

* sudo modprobe ec_sys write_support=1
  → Error: "Operation not permitted"

* Installed lm-sensors → detected sensors but no fan control

* Tried fancontrol → no pwm control available

Expected:
Ability to control or at least read fan speed.

Actual:
EC access seems blocked; fan control unavailable.

Logs:
(paste output of dmesg, sensors, lsmod)

Additional info:
This laptop works fine on Windows (fan control available via OMEN software), suggesting firmware/EC restriction.

I have a Lenovo ThinkPad carbon with Intel Core i7 V Pro I've got the Ubuntu that was downloaded through a virtual machine I forgot the password to get into Ubuntu so I did a secure wipe and now I have tried downloading on a separate computer ubuntu on a USB I've disabled the secure boot and I've tried putting the media in and it will not download it doesn't do anything and I can't get past the ThinkPad screens and also when I went in to the boot menu because I read that somewhere that you needed to select the storage and I don't have an area that says storage at all so what am I doing wrong you could answer my question that would be super helpful thank you

I used to use VNC but it does not work with Wayland. How can I connect to my Kubuntu 24.04 (Wayland) computer from another computer in another network so that I can access its GUI, just like in VNC?

I use KDE Connect between my phone and laptop on my University WiFi. Very often, the IP address changes and the connection stops working. I have to manually find the IP of the computer with the command ip address and put it in my phone and connect manually. The same thing happens when I connect to a different network.

Is there any way to automate the connection process? AFAIK know Apple's computers have some robust connection procedure with iOS devices.

I want to be able to do this for multiple computers with the same phone.

I'm going to publish a self-answer on how to properly fix the internal camera without breaking the audio stack.

In this guide I'll explain how to do it right because there are people out there that have suggested a solution either by the DKMS or by the development PPA from intel.

Both can work only under specific circumstances but will break sooner or later because do not take care of the root cause of the issue.

To give a bit of context Dell XPS 13 9315 with stock Ubuntu is at 20.04 LTS but during normal Ubuntu upgrades the camera breaks and upgrading to 22.04 did not fix it.

I don't have knowledge of this issue being addressed even in version 24.04 LTS. Moreover I don't recall a single Ubuntu upgrade issue-free in the last 10 years. So I can't recommend trying it to avoid following this procedure.

Suspend/hibernate not working - no usable answers were provided, the only proposed solution does not work.

This is NOT a duplicate of "Computer does not resume from suspend". The computer does not sleep or suspend at all and answers in this thread are not relevant. The question I had asked before had no functional solutions.

This is NOT a duplicate of 24.04 doesn't sleep as that has an "answer" that I cannot downvote or delete as the "answer" doesn't work.

I have a brand new Lenovo ThinkBook 16 G8 IRL running Ubuntu 24.04.3. The computer has 32gb of RAM and 2 physical SSDs, one for a Win11 installation and the other for a fresh Ubuntu installation.

Sleep/Suspend works perfectly in the W11 environment, but not in Ubuntu. I have tested using Ubuntu versions 18 to 24, Mint Cinamonn 22 and Pop!_OS 22 and 24. They have all exhibited the same behavior.

The screen goes black, it looks like the machine tries to sleep, but then wakes up again within 5 seconds. This makes it impossible to use as a true laptop as I have to save all work and shut down the computer whenever I will travel with it - which is quite often.

This is not a problem of the computer not restarting or restoring from suspend, the computer does not enter suspend in the first place.

I agree the suspend command should work out of the box, so I'm not understanding this. I ran the below command and had the same effect - black screen for 3-5 seconds, then back to a login screen.

Swap is on and has plenty of space (32gb of RAM)

I have followed several recommendations and followed several directions.

There are no external devices plugged in

I have attempted to disable USB devices, use Gnome Tweaks to enable suspend, changed USB wake properties, but I had no luck.

Updates: Computer updated to 24.04.4 New dmesg added at the end Kernel updated to 6.17.0-20-generic

UPDATE: I noticed that the file /etc/initramfs-tools/conf.d/resume does not exist. In fact, the conf.d folder is empty.

journalctl -b notes:

avril 18 14:22:49 rogbuntu-thinkbook wpa_supplicant[1207]: wlp0s20f3: CTRL-EVENT-CONNECTED - Connection to c4:0>
avril 18 14:22:49 rogbuntu-thinkbook NetworkManager[1206]: <info>  [1776514969.1987] device (wlp0s20f3): suppli>
avril 18 14:22:49 rogbuntu-thinkbook NetworkManager[1206]: <info>  [1776514969.1995] device (wlp0s20f3): ip:dhc>
avril 18 14:22:49 rogbuntu-thinkbook NetworkManager[1206]: <info>  [1776514969.1998] dhcp4 (wlp0s20f3): cancele>
avril 18 14:22:49 rogbuntu-thinkbook NetworkManager[1206]: <info>  [1776514969.1998] dhcp4 (wlp0s20f3): activat>
avril 18 14:22:49 rogbuntu-thinkbook NetworkManager[1206]: <info>  [1776514969.1998] dhcp4 (wlp0s20f3): state c>
avril 18 14:22:49 rogbuntu-thinkbook NetworkManager[1206]: <info>  [1776514969.1998] dhcp4 (wlp0s20f3): activat>
avril 18 14:22:49 rogbuntu-thinkbook NetworkManager[1206]: <info>  [1776514969.2000] device (p2p-dev-wlp0s20f3)>
avril 18 14:22:49 rogbuntu-thinkbook NetworkManager[1206]: <info>  [1776514969.2028] dhcp4 (wlp0s20f3): state c>
avril 18 14:22:49 rogbuntu-thinkbook NetworkManager[1206]: <info>  [1776514969.2030] dhcp4 (wlp0s20f3): state c>
avril 18 14:22:49 rogbuntu-thinkbook dbus-daemon[1137]: [system] Activating via systemd: service name='org.free>
avril 18 14:22:49 rogbuntu-thinkbook systemd[1]: Starting NetworkManager-dispatcher.service - Network Manager S>
avril 18 14:22:49 rogbuntu-thinkbook dbus-daemon[1137]: [system] Successfully activated service 'org.freedeskto>
avril 18 14:22:49 rogbuntu-thinkbook systemd[1]: Started NetworkManager-dispatcher.service - Network Manager Sc>
avril 18 14:22:49 rogbuntu-thinkbook systemd-resolved[920]: Using degraded feature set UDP instead of UDP+EDNS0>
avril 18 14:22:58 rogbuntu-thinkbook canonical-livepatch.canonical-livepatchd[1411]: Client information is rece>
avril 18 14:22:59 rogbuntu-thinkbook systemd[1]: NetworkManager-dispatcher.service: Deactivated successfully.
avril 18 14:23:01 rogbuntu-thinkbook systemd[2198]: Started snap.canonical-livepatch.canonical-livepatch-2f6a96>
avril 18 14:23:02 rogbuntu-thinkbook systemd[2198]: Started snap.canonical-livepatch.canonical-livepatch-10300d>
avril 18 14:23:02 rogbuntu-thinkbook systemd[2198]: Started snap.canonical-livepatch.canonical-livepatch-51e1b8>
avril 18 14:23:02 rogbuntu-thinkbook systemd[2198]: Started snap.canonical-livepatch.canonical-livepatch-487c94>
avril 18 14:23:08 rogbuntu-thinkbook wpa_supplicant[1207]: wlp0s20f3: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=->
avril 18 14:24:28 rogbuntu-thinkbook wpa_supplicant[1207]: wlp0s20f3: WPA: Group rekeying completed with c4:04:>
avril 18 14:25:01 rogbuntu-thinkbook CRON[230973]: pam_unix(cron:session): session opened for user root(uid=0) >
avril 18 14:25:01 rogbuntu-thinkbook CRON[230974]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 >
avril 18 14:25:01 rogbuntu-thinkbook CRON[230973]: pam_unix(cron:session): session closed for user root
...skipping...
avril 18 14:22:49 rogbuntu-thinkbook wpa_supplicant[1207]: wlp0s20f3: CTRL-EVENT-CONNECTED - Connection to c4:0>
avril 18 14:22:49 rogbuntu-thinkbook NetworkManager[1206]: <info>  [1776514969.1987] device (wlp0s20f3): suppli>
avril 18 14:22:49 rogbuntu-thinkbook NetworkManager[1206]: <info>  [1776514969.1995] device (wlp0s20f3): ip:dhc>
avril 18 14:22:49 rogbuntu-thinkbook NetworkManager[1206]: <info>  [1776514969.1998] dhcp4 (wlp0s20f3): cancele>
avril 18 14:22:49 rogbuntu-thinkbook NetworkManager[1206]: <info>  [1776514969.1998] dhcp4 (wlp0s20f3): activat>
avril 18 14:22:49 rogbuntu-thinkbook NetworkManager[1206]: <info>  [1776514969.1998] dhcp4 (wlp0s20f3): state c>
avril 18 14:22:49 rogbuntu-thinkbook NetworkManager[1206]: <info>  [1776514969.1998] dhcp4 (wlp0s20f3): activat>
avril 18 14:22:49 rogbuntu-thinkbook NetworkManager[1206]: <info>  [1776514969.2000] device (p2p-dev-wlp0s20f3)>
avril 18 14:22:49 rogbuntu-thinkbook NetworkManager[1206]: <info>  [1776514969.2028] dhcp4 (wlp0s20f3): state c>
avril 18 14:22:49 rogbuntu-thinkbook NetworkManager[1206]: <info>  [1776514969.2030] dhcp4 (wlp0s20f3): state c>
avril 18 14:22:49 rogbuntu-thinkbook dbus-daemon[1137]: [system] Activating via systemd: service name='org.free>
avril 18 14:22:49 rogbuntu-thinkbook systemd[1]: Starting NetworkManager-dispatcher.service - Network Manager S>
avril 18 14:22:49 rogbuntu-thinkbook dbus-daemon[1137]: [system] Successfully activated service 'org.freedeskto>
avril 18 14:22:49 rogbuntu-thinkbook systemd[1]: Started NetworkManager-dispatcher.service - Network Manager Sc>
avril 18 14:22:49 rogbuntu-thinkbook systemd-resolved[920]: Using degraded feature set UDP instead of UDP+EDNS0>
avril 18 14:22:58 rogbuntu-thinkbook canonical-livepatch.canonical-livepatchd[1411]: Client information is rece>
avril 18 14:22:59 rogbuntu-thinkbook systemd[1]: NetworkManager-dispatcher.service: Deactivated successfully.
avril 18 14:23:01 rogbuntu-thinkbook systemd[2198]: Started snap.canonical-livepatch.canonical-livepatch-2f6a96>
avril 18 14:23:02 rogbuntu-thinkbook systemd[2198]: Started snap.canonical-livepatch.canonical-livepatch-10300d>
avril 18 14:23:02 rogbuntu-thinkbook systemd[2198]: Started snap.canonical-livepatch.canonical-livepatch-51e1b8>
avril 18 14:23:02 rogbuntu-thinkbook systemd[2198]: Started snap.canonical-livepatch.canonical-livepatch-487c94>
avril 18 14:23:08 rogbuntu-thinkbook wpa_supplicant[1207]: wlp0s20f3: CTRL-EVENT-SIGNAL-CHANGE above=1 signal=->
avril 18 14:24:28 rogbuntu-thinkbook wpa_supplicant[1207]: wlp0s20f3: WPA: Group rekeying completed with c4:04:>
avril 18 14:25:01 rogbuntu-thinkbook CRON[230973]: pam_unix(cron:session): session opened for user root(uid=0) >
avril 18 14:25:01 rogbuntu-thinkbook CRON[230974]: (root) CMD (command -v debian-sa1 > /dev/null && debian-sa1 >
avril 18 14:25:01 rogbuntu-thinkbook CRON[230973]: pam_unix(cron:session): session closed for user root

Latest dmesg:

[    0.960269] kernel: Low-power S0 idle used by default for system suspend


[    1.325652] kernel: sdhci: Secure Digital Host Controller Interface driver
[    1.325655] kernel: sdhci: Copyright(c) Pierre Ossman
[    1.329688] kernel: idma64 idma64.0: Found Intel integrated DMA 64-bit
[    1.330996] kernel: usb 3-6: new high-speed USB device number 2 using xhci_hcd
[    1.335437] kernel: sdhci-pci 0000:45:00.0: SDHCI controller found [1217:8621] (rev 1)
[    1.335535] kernel: sdhci-pci 0000:45:00.0: enabling device (0000 -> 0002)
[    1.342077] kernel: mmc0: SDHCI controller on PCI [0000:45:00.0] using ADMA
[    1.343738] kernel: nvme 0000:01:00.0: platform quirk: setting simple suspend
[    1.343745] kernel: nvme 0000:02:00.0: platform quirk: setting simple suspend
[    1.343826] kernel: nvme nvme1: pci function 0000:02:00.0
[    1.343836] kernel: nvme nvme0: pci function 0000:01:00.0
[    1.345158] kernel: intel-lpss 0000:00:15.3: enabling device (0000 -> 0002)
[    1.346161] kernel: idma64 idma64.1: Found Intel integrated DMA 64-bit
[    1.364019] kernel: nvme nvme0: D3 entry latency set to 10 seconds
[    1.374960] kernel: nvme nvme1: allocated 64 MiB host memory buffer (1 segment).
[    1.378281] kernel: nvme nvme0: allocated 64 MiB host memory buffer (1 segment).
[    1.387526] kernel: nvme nvme1: 12/0/0 default/read/poll queues
[    1.391873] kernel:  nvme1n1: p1 p2 p3 p4
[    1.410882] kernel: nvme nvme0: 12/0/0 default/read/poll queues
[    1.421148] kernel:  nvme0n1: p1 p2
[    1.495689] kernel: input: FTCS0038:00 2808:0106 Mouse as /devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-0/i2c-FTCS0038:00/0018:2808:0106.0001/input/input4
[    1.495877] kernel: input: FTCS0038:00 2808:0106 Touchpad as /devices/pci0000:00/0000:00:15.0/i2c_designware.0/i2c-0/i2c-FTCS0038:00/0018:2808:0106.0001/input/input5


[    2.422232] systemd[1]: Started systemd-ask-password-wall.path - Forward Password Requests to Wall Directory Watch.
[    2.422343] systemd[1]: Set up automount proc-sys-fs-binfmt_misc.automount - Arbitrary Executable File Formats File System Automount Point.
[    2.422354] systemd[1]: Expecting device dev-disk-by\x2duuid-E27F\x2d1009.device - /dev/disk/by-uuid/E27F-1009...
[    2.422367] systemd[1]: Reached target integritysetup.target - Local Integrity Protected Volumes.
[    2.422382] systemd[1]: Reached target nss-user-lookup.target - User and Group Name Lookups.
[    2.422389] systemd[1]: Reached target remote-fs.target - Remote File Systems.
[    2.422395] systemd[1]: Reached target slices.target - Slice Units.
[    2.422404] systemd[1]: Reached target snapd.mounts-pre.target - Mounting snaps.
[    2.422418] systemd[1]: Reached target veritysetup.target - Local Verity Protected Volumes.
[    2.422508] systemd[1]: Listening on syslog.socket - Syslog Socket.
[    2.422550] systemd[1]: Listening on systemd-fsckd.socket - fsck to fsckd communication Socket.
[    2.422578] systemd[1]: Listening on systemd-initctl.socket - initctl Compatibility Named Pipe.
[    2.422627] systemd[1]: Listening on systemd-journald-dev-log.socket - Journal Socket (/dev/log).
[    2.422675] systemd[1]: Listening on systemd-journald.socket - Journal Socket.
[    2.422743] systemd[1]: Listening on systemd-oomd.socket - Userspace Out-Of-Memory (OOM) Killer Socket.

The last entry is:

[    2.422743] systemd[1]: Listening on systemd-oomd.socket - Userspace Out-Of-Memory (OOM) Killer Socket.

I am on Ubuntu 24.04. After a recent update, some of my files, including:

1. png image generated by one of my codes

2. Screenshots taken

3. Clean pdf files downloaded

have no preview thumbnails that were downloaded after the update was installed.. Older ones are still being displayed correctly. I tried the following commands:

sudo rm -rf \~/.thumbnails/\* \~/.cache/thumbnails/\*

and

sudo dnf install glycin-thumbnailer

but they did not work, and the problem only got worse after executing the first of the above commands, where the remaining thumbnails were also gone. I also tried nautilus-q but it didn't work.

I am building a project that models human organs and body movement in software, with the goal of eventually mapping this to physical robotic parts.

I have a basic question:

In order to work on robotics on linux systems, what is the standard project structure for a ROS2 workspace? What would be an optimal way of setting up ROS2?

Thank you in advance for any suggestions.

I am a beginner with ROS2 but comfortable with Python. Any pointers to official documentation or working examples would be appreciated.

I'm using Ubuntu 24.04.1 LTS and have installed the LaTeX extension for LibreOffice with the tex-live full 2023.20240207-1 package. While the extension appears to be functioning and I can see its icons in LibreOffice, I'm encountering several issues. When attempting to insert a formula using this extension, the formula editor window fits my screen but I can't see the LaTeX icon below the preamble needed to generate the formula. Additionally, resizing the window is not possible. Does anyone know what might be causing this problem?

I want to backup and sync my dotfiles using github. Since all the dotfiles resides in $home by default, should I just git init in my $home folder, or is that a bad idea?

Having performed git init in $home, my idea is then to .gitignore all non-dotfiles and non-dotfolders.

I'm on a cloned repo and trying to push to my remote branch. Committing works just fine, however whenever I try to push I get this:

error: unable to write file ./objects/foo/bar: Permission denied

I own all files in the local repository and usually pushing works just fine, however after some time this error occurs and I cannot push.

The only thing resolving the issue, is to revert to the last commit on origin and try to find the file which is supposed to be causing trouble.

I then touch a new file and paste the contents from the old "broken" file. Sometimes this doesn't help either and obviously this is not a manageable workaround.

I'm using Ubuntu 16.04 and access internet behind the college's proxy server which requires authentication credentials. The problem is, at certain places in my college I'm able to access internet, while at the same time at my college hostel, the browser displays "Unable to connect to proxy server." message. Both the hostel and the college campus are supplied with the same wifi network. Also my another laptop having ubuntu 14.04, works completely fine at both places. the laptop I'm having trouble with, is lenovo ideapad 300 dual booted with windows 10 and ubuntu 16.04; windows works perfectly well.

PS: I've posted this question using lenovo (booted on ubuntu os), and it's working fine right now in class.

Each time I try to download the new Plasma widget from the Plasma Add-On Installer, I get the following error:

Loading of providers from file: http://download.kde.org/ocs/providers.xml failed

Screenshot:

The same problem is also happening when I am trying to install new theme. Please check the below screenshot for clarification:

Any suggestions, comments or answers will always be appreciated. Thanks.

As mailchimp & other online bulk email service provider companies allow their users to send bulk emails & keeps track of emails are sent / bounced / undelivered / opened / spammed / deleted

which utilities or packages do we need to install on ubuntu in order to provide such service ? Is it POSTFIX MAILX..? Or Do we need to install & configure a mail server; If so which packages / binaries we use?

When I create an ssh key with ssh-keygen, it includes the username and hostname of the machine it was created on. Is there any way to avoid this? I read the manpage and didn't see anything.

I currently have the uwsgi package installed. I would like to remove the package but leave the current uWSGI instances running. Is this possible?

(Yes, I do realize the service will only continue running until it is stopped or the server restarts.)

I'm new to the whole Linux concept. I start up SpeedFan and it comes up with a error saying "Privileged instruction". I'm very new to this, so if someone could tell me how to fix this step by step, it would be greatly appreciated.

I download the tar.bz file from the home page of zotero, extract it and run the file 'run-zotero.sh', but it open zotero rather than install it. How to install it? Any help or suggestion will be appreciated!

How do I limit the updates that are installed to those from a specific set of repositories? Is this at all possible?