I recently installed Ubuntu 26.04 on my Acer laptop with Ryzen 240 and RTX5050. There are two problems. First I have some random display glitch occurring for a brief moment every minute or two. Second I can't make Steam use my dGPU for games. I tried NVIDIA X Server Settings and tried to launch Steam with DRI-PRIME=1, but it always runs with iGPU and says inconsistent number for dri prime. What can I do about it?

14s clip for screen glitch

I need a file/directory permission based on user/group.

/srv/share
/srv/share/accounts
/srv/share/sales

admin user owns all files/directory under /srv/share/

Accounts department can read/write in /src/accounts, but no other groups should access to /srv/share/accounts except user ceo has read only access to /srv/share/accounts.

Do you have any suggestion to apply the directory/file permission to /srv/share/accounts for user/group/others using Linux user/group permission without using ACL?

Pretty sure this is not legal? is it? Link to product Screen shot of product Sorry if this is not in the right place but i think devs should be aware?

Just curious to know if going from Kubuntu (KDE desktop) to Ubuntu (Gnome) will cause any issues? Should I backup my data prior to switching? Thanks!

On WSL2 (Ubuntu 24.04.4 LTS), locate/plocate queries take 1–2 minutes instead of milliseconds. The database is small (~130 MB) and it is not disk-bound — the data is fully cached and strace shows almost no time spent in reads. CPU usage is low too; the process just sits in D state.

What is actually making it this slow, and how do I fix it?

Asking this because Debian clearly states on their wiki;

Some third-party repositories might appear safe to use as they contain only packages that have no equivalent in Debian. However, there are no guarantees that any repository will not add more packages in future, leading to breakage.

Finally, packages in official Debian releases have gone through extensive testing, often for months, and only fit packages are allowed in a release. On the other hand, packages from external sources might alter files belonging to other packages, configure the system in unexpected ways, introduce vulnerabilities, cause licensing issues.

Once packages from unofficial sources are introduced in a system it can become difficult to pinpoint the cause of breakage especially if it happens after months.

From this I infer that it should be avoided whenever possible to install software from third-party sources & repos, including from .deb files off the internet. Of course because of security, but also due to dependency issues, and potential for future system breakage.

But is this an issue on Ubuntu as well? If I go to trusted sites like Steam, Discord, etc. and see their official Ubuntu download readily available as .deb, it makes me think there must be something different about Ubuntu that doesn't make it an issue, that these vendors are distributing their software in .deb as an officially supported method on Ubuntu.

For clarity, I'm talking about double-clicking the .deb file and installing through the App Center, or through sudo apt install -y ./filename.deb as both do the same thing from what I understand (that is, resolving any required dependencies in the installation.)

I have an Epson BX 630FW printer. I have one legacy computer with original drivers for the printer, which works well, and a new computer that I need to install the driver into. The online available driver, either direct from Epson, or via Ubuntu, does not work. It apparently installs, shows the printer icon, but sends no data to the printer. Nothing happens. This is true for two different computers now. Is there a simple command line way to copy/ paste the driver and perform a transplant? Thanks.

I recently upgraded to Ubuntu 26.04 LTS. I used to use a VPN app, which now shows 4 times prompts for the superuser (after the upgrade) - on the last Ubuntu version I had not a single prompt when establishing a connection. What can I do to simplify this behaviour?

I made a mistake and had a space in my project file name. I renamed it and made a new virtual environment and Python interpreter. Now whenever I run my scripts I get this error:

/home/jahil/Desktop/0python/gymtracker/.venv2/bin/python /home/jahil/Desktop/0python/gymtracker/test.py 
[WARNING]: prerequisites.py is experimental and does not support all prerequisites yet.
[WARNING]: Please report any issues to the python-for-android issue tracker.
Traceback (most recent call last):
  File "/home/jahil/Desktop/0python/gymtracker/test.py", line 2, in <module>
    from kivy.app import App
ModuleNotFoundError: No module named 'kivy.app'

Process finished with exit code 1

I found an old thread about how filenames containing kivy can break the extension so I've already renamed all my files, but it still persists. I've tried restarting my PC and reinstalling kivy. I've provided a screenshot of my set up and you can see it is installed. Do you have any suggestions about what I can try to resolve this?

I'm new to Ubuntu and Linux as a whole. I wanted to try dual-booting on my laptop with Windows 11 and Ubuntu Server. I created unallocated space for Ubuntu in Disk Management on Windows (about 120gb) but during the installation process it showed the partition as only having 16mb. I did check the other partitions but they seemed to line up perfectly with what I saw in Disk Management. It's only the unallocated space that's not shown correctly (the unallocated space on my SD card doesn't even show at all but that's not a problem). Right now there should be 6 partitions. Partition 1,4,5,6 are small/recovery partitions that were already on the laptop when I bought it. Partition 2 is my Windows partition and 3 is the empty space for Ubuntu (2 and 3 are switched in the Ubuntu install). Should I just install it on the empty partition then? This is what is shown during installation, This is what Disk Management shows

I am no expert in Ubuntu so I would really appreciate some help. Randomly, my laptop (hp with amd ryzen and nvidia GeForce gtx1650, specifically ho pavilion 15-ec2013ns) showed some weird pixels (boxes where 3 squares are black, 1 white etc). Sometimes it boots, sometimes it doesn't, sometimes it goes to grub. When it boots it might work or freeze. If I move the screen or the laptop, it might freeze.

I checked the logs and there were some ACPI errors (there are other errors too):

Gdm: on_display_removed: assertion 'GDM_IS_REMOTE_DISPLAY (display)' failed
ty Failed to start app-gnome-ubuntu\x2dreport\x2don\x2dupgrade-3512.scope Application launched by gnome-session-binary.
Gdm: on_display_added: assertion 'GDM_IS_REMOTE_DISPLAY (display)' failed
gkr-pam: unable to locate daemon control file
Failed to set mode: Failed (0x03)
ACPI Error: Aborting method \_SB.WMID.WMAA due to previous error (AE_AML_BUFFER_LIMIT) (20230628/psparse-529) 16
ACPI Error: Aborting method \_SB.WMID.WMAA due to previous error (AE_AML_BUFFER_LIMIT) (20230628/psparse-529)
ACPI Error: Aborting method \HWMC due to previous error (AE_AML_BUFFER_LIMIT) (20230628/psparse-529)
ACPI BIOS Error (bug): AE_AML_BUFFER_LIMIT, Field [D008] at bit offset/length 128/8 exceeds size of target Buffer (128 bits) (
ACPI Error: Aborting method \_SB.WMID.WQBE due to previous error (AE_AML_BUFFER_LIMIT) (20230628/psparse-529)
ACPI Error: Aborting method \_SB.WMID.WQBZ due to previous error (AE_AML_BUFFER_LIMIT) (20230628/psparse-529)
ACPI BIOS Error (bug): AE_AML_BUFFER_LIMIT, Index (0x000000032) is beyond end of object (length 0x32) (20230628/exoparg2-393)
ACPI Error: Aborting method \_SB.WMID.WQBE due to previous error (AE_AML_BUFFER_LIMIT) (20230628/psparse-529)
ACPI Error: Aborting method \_SB.WMID.WQBZ due to previous errог (AE_AML_BUFFER_LIMIT) (20230628/psparse-529)
ACPI BIOS Error (bug): AE_AML_BUFFER_LIMIT, Index (0x000000032) is beyond end of object (length 0x32) (20230628/exoparg2-393)
ACPI Error: AE_NOT_FOUND, While resolving a named reference package element \_PR_.P000 (20230628/dspkginit-438)
ACPI Error: AE_ALREADY_EXISTS, During name lookup/catalog (20230628/psobject-220)
ACPI BIOS Еггоr (bug): Failure creating named object [\_SB.PCIO.GPPO.HDAU], AE_ALREADY_EXISTS (20230628/dswload2-326)
АСРІ Еггог: АE_ALREADY_EXISTS, During name lookup/catalog (20230628/psobject-220)
ACPI BIOS Erгог (bug): Failure creating named object [\_SB.PCIO.GPPO.VGA], AE_ALREADY_EXISTS (20230628/dswload2-326)
ACPI Error: AE_NOT_FOUND, During name lookup/catalog (20230628/psobject-220)
ACPI BIOS Error (bug): Could not resolve symbol [\_SB.PCI0.GPP1.WLAN], AE_NOT_FOUND (20230628/dswload2-162)

I tried running memtest from grub, and it had several errors. Then tried booting from recovery, but I was thinking what to do and suddenly the screen changed to white and showed black text. I couldn't understand anything (numbers, "words" that I don't understand e.g. RAX: then numbers). The only sentence I saw was: systemd-journal[370] exited with irqs disabled

Please help me debug this. I don't know what is going on since a couple days ago it worked perfectly.

I have an animated SVG file.

I want to convert it into a gif.

How can I do it using Ubuntu?

I tried convert favicon.svg favicon.gif, but it says

WARNING: unknown type: svg:animateMotion 
WARNING: unknown type: svg:animateMotion 
WARNING: unknown type: svg:animateMotion

I also tried exporting with inkscape, but it also says unknown type: svg:animateMotion.

Here is my svg file (you can open it with firefox to see that it is animated):

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<svg
   viewBox="0 0 200 200"
   width="200"
   height="200"
   version="1.1"
   id="svg6"
   sodipodi:docname="favicon.svg"
   inkscape:version="1.4 (1:1.4+202410161351+e7c3feb100)"
   xmlns:inkscape="http://www.inkscape.org/namespaces/inkscape"
   xmlns:sodipodi="http://sodipodi.sourceforge.net/DTD/sodipodi-0.dtd"
   xmlns:xlink="http://www.w3.org/1999/xlink"
   xmlns="http://www.w3.org/2000/svg"
   xmlns:svg="http://www.w3.org/2000/svg">
  <defs
     id="defs6" />
  <sodipodi:namedview
     id="namedview6"
     pagecolor="#ffffff"
     bordercolor="#000000"
     borderopacity="0.25"
     inkscape:showpageshadow="2"
     inkscape:pageopacity="0.0"
     inkscape:pagecheckerboard="0"
     inkscape:deskcolor="#d1d1d1"
     inkscape:zoom="2.76"
     inkscape:cx="99.818841"
     inkscape:cy="100"
     inkscape:window-width="1277"
     inkscape:window-height="758"
     inkscape:window-x="50"
     inkscape:window-y="100"
     inkscape:window-maximized="1"
     inkscape:current-layer="svg6" />
  <!-- Nucleus -->
  <circle
     cx="100"
     cy="100"
     r="13.7"
     fill="#800000"
     id="circle1" />
  <!-- Orbit paths -->
  <ellipse
     cx="100"
     cy="100"
     rx="93"
     ry="28"
     fill="none"
     stroke="gray"
     stroke-width="1"
     id="orbit1"
     style="stroke-width:6;stroke-dasharray:none" />
  <ellipse
     cx="100"
     cy="100"
     rx="100"
     ry="40"
     fill="none"
     stroke="gray"
     stroke-width="1"
     transform="rotate(60,100,100)"
     id="orbit2"
     style="stroke-width:6;stroke-dasharray:none" />
  <ellipse
     cx="100"
     cy="100"
     rx="101"
     ry="36"
     fill="none"
     stroke="gray"
     stroke-width="1"
     transform="rotate(-30,100,100)"
     id="orbit3"
     style="stroke-width:5.90000038;stroke-dasharray:none" />
  <!-- Electrons -->
  <circle
     cx="0"
     cy="0"
     r="11"
     fill="#0000ff"
     id="circle2">
    <animateMotion
       dur="5s"
       repeatCount="indefinite">
      <mpath
         xlink:href="#orbit1" />
    </animateMotion>
  </circle>
  <circle
     cx="0"
     cy="0"
     r="11"
     fill="#0000ff"
     id="circle3">
    <animateMotion
       dur="6s"
       repeatCount="indefinite">
      <mpath
         xlink:href="#orbit2" />
    </animateMotion>
  </circle>
  <circle
     cx="0"
     cy="0"
     r="11"
     fill="#0000ff"
     id="circle4">
    <animateMotion
       dur="7s"
       repeatCount="indefinite">
      <mpath
         xlink:href="#orbit3" />
    </animateMotion>
  </circle>
  <!-- Paths for animation -->
  <path
     id="path4"
     d="M 100 100 m -93 0 a 93 28 0 1 1 186 0 a 93 28 0 1 1 -186 0"
     fill="none" />
  <path
     id="path5"
     d="M 100 100 m -100 0 a 100 40 0 1 1 200 0 a 100 40 0 1 1 -200 0"
     fill="none"
     transform="rotate(60,100,100)" />
  <path
     id="path6"
     d="M 100 100 m -101 0 a 101 36 0 1 1 202 0 a 101 36 0 1 1 -202 0"
     fill="none"
     transform="rotate(-30,100,100)" />
</svg>

I am experiencing persistent issues with the Realtek RTL8723DE WiFi driver on Ubuntu 26.04 LTS. The main problems are that the wireless signal is very slow, and after suspending the laptop, the WiFi adapter stops working entirely—no networks are detected until a reboot.

I have tried installing multiple drivers, including different versions and community-supported alternatives, but none have resolved the issue. I also configured the system to prevent the WiFi adapter from being disabled during suspension, but this did not help.

Additionally, I downgraded to Ubuntu 22.04 LTS to test compatibility with an older kernel version, but the problem persisted. As a potential hardware solution, I researched replacing the internal WiFi card with an Intel model. However, based on available information, Intel cards are not compatible with my laptop model (HP 14-dq1003la).

As an alternative, I considered purchasing a USB WiFi adapter, specifically the TP-Link Archer T3U Nano (RTL88x2B USB). However, I found reports indicating that it may also have similar driver or compatibility issues on Linux systems.

What can I do in this situation?

My cursor keeps randomly jumping to the top right of whichever monitor the cursor is on. This is rendering my PC inoperable when the behaviour is occurring as I am constantly accidentally closing windows when the cursor jumps just before I click. Sometimes it goes long periods without happening, restarting doesn't affect the behaviour, and it seems to be very random.

• This happens with 2 wireless mice, a wired mouse, and just the touchpad
• This happens when I have a mouse and disable the touchpad via settings
• Running Ubuntu 20.04.6 LTS
• Laptop: Dell Precision 7760, dual boot with Windows 10, with fast boot/fast power-up switched off
• Laptop has no touchscreen or touch stick

As a separate but possibly related issue, my cursor often disappears entirely (but I can still see that the mouse movements are highlighting buttons etc.), and only reappears once I've pressed the windows keys which brings up the option to switch between windows.

Thanks in advance for any suggestions :)

I'm using Ubuntu 24.04 and it freezes regularly. The mouse and keyboard stops responding so I can't even open a terminal.

I don't know what to do or how to identify the problem...

My Ubuntu 24.04 broke after an update, I have to reinstall. In the past, it was possible during the installation to keep the datas in the /home folder. It know that it wasn't the case for version 24.04 and 24.10

How to reinstall Ubuntu in the easiest way? is now 12 years old, so I can't take into account.

I hope this feature exist again in version 26.04, but I didn't find it...

I'm fighting with this for a week. Read and searched a lot, That's why I decided to post my first question.

Initial setup :

Windows AD Network. Windows DHCP Servers automatically update DNS. Install Ubuntu server on Hyper-V virtual machine. This time I decide to give a shot for 26.04 LTS. Ubuntu server is with static IP address, which I define during installation process. Let's say I gave it name svr-2604 as a host name and IP: 192.168.100.100/24 gateway: 192.168.100.1 Installation went smooth exactly as it was in 24.04 LTS that I used till that moment. After installation I checked IP:192.168.100.100 and it was there. I get terminal SSH and everything was as expected. I create static record in DNS with name svr-2604 pointing to 192.168.100.100 (my usual action). I could ping and connect by terminal to SSh using this name (also as usual).

Restart Ubuntu server and for some reason I flush DNS cache on my computer. At that point I try to connect with terminal using the same name - without success. Check server - running. Ping name - no response but returning address completely different from DHCP range. Check DHCP and figure-out fresh address lease on name svr-2604 with address (let say): 192.168.100.36. IN DNS I have already two records about my server : 192.168.100.36 - dynamic from DHCP 192.168.100.100 - static

On request DNS returns first one and I can't connect to server by name.

On Ubuntu I checked log records :

journalctl | grep -i dhcp

get

svr-2604 systemd-networkd[420]: eth0: DHCPv4 address 192.168.100.36/24, gateway 192.168.100.1 acquired from 192.168.110.XXX (my dhcp server)

Check for configuration in /run/systemd/network and there I get :

-rw-r----- 1 root root             78 May 29 09:41 10-netplan-eth0.link
-rw-r----- 1 root systemd-network 222 May 29 09:41 10-netplan-eth0.network
-rw-r--r-- 1 root root            131 Apr 13 13:34 zzzz-dracut-default.network

First two are clear - result from my static address netplan configuration, but zzzz-dracut-default.network ??

Start digging and figure-out it was dynamic generated from dracut. It's content :

[Match]
Kind=!*
Type=!loopback

[Network]
DHCP=yes

[DHCPv4]
ClientIdentifier=mac
RequestOptions=17

[DHCPv6]
RequestOptions=59 60

In my opinion, this is where my problem comes. dracut on boot process leased address with my server name. When Ubuntu 26.04 boots - it takes configuration from netplan (the one that I wish to) but I finish with two different records in DNS.

What I try is to set dracut to use static address. I ended with idea that I have to give kernel command for this. Create following file : /etc/dracut.conf.d/network.conf

with following content :

kernel_cmdline="ip=192.168.100.100::192.168.100.1:24::eth0:none"

after that I regenerate image with

dracut --force and reboot 

Sadly no result. At that point I gave up and decide to ask for help. This never happens with Ubuntu 24.04 or earlier.

What is may positive move to resolve this problem ?

Any help is appreciate !

Regards

I am seeing a resurgence of this issue...from 15 years ago: How can I diagnose/debug "maximum number of clients reached" X errors?

The symptoms are despite not being heavily loaded or up for any length of time the following happens:

• applications and context menus will simply not happen
• after closing some arbitrary window the previous application/context menu will work
• occasionally i was getting a notification about Maximum number of clients reached, which was absurd given:
  • after an nvidia update basically hosed itself, I had manually rolled back my OS to it's prior state and disabled all updates - this may have been imperfect but definately worked fine for several weeks/months PRIOR to the issue of this post.
  • at no time did I update anything that correlated with the change in behavior, except Discord
    • lsof -U +c 15 | cut -f1 -d' ' | sort | uniq -c | sort -rn | head -3 certainly doesnt seem like it should be an issue
  • the only other thing that could possibly have made any changes are some AI mods that i installed for Valheim via valheim.thunderstore.io (which i'm only mentioning for completeness)
  • on 24.10 i followed some variations of the advice here: https://unix.stackexchange.com/a/714487 - to no effect. It is an X11/nvidia/pulseaudio system.
  • on 26.04 i accepted the notifications suggestion to do the same as the above: increase maxclients - to no effect, but i didnt check what it actually did. It is an X11/nvidia/pipewire system.

Attempting to reinstall 24.10 and terminate its upgrades prior to the nvidia fiasco is still on the table. Despite being quite possibly a lot more hassle.

So far I'm tolerating it on 26.04 by needing to reboot once a day or more, while I investigate adapting all of my scripts etc to 26.04 (pipewire and X11). But neither of my OS partitions are really useful platforms because of this problem.

Switching to wayland is not an option at this time; due to their dependence on functionality supplied by xdotool|xprop|wmctrl|etc almost all of the audio/video/convenience scripts i rely on to stay sane are unsupportable by wayland, and anathema to the current wayland philosophy of ?sandboxing? windows, as far as i understand it so far.

Do I have A.I./linux-vulnerability koodies? Or is the primary LTS release just a lot jankier than usual?

$ xlsclients
betlogbeast  xdg-desktop-portal-gtk
betlogbeast  xdg-desktop-portal-gtk
betlogbeast  firefox_firefox
betlogbeast  steamwebhelper
betlogbeast  Discord
betlogbeast  steam

$ lsof -U +c 15 | cut -f1 -d' ' | sort | uniq -c | sort -rn | head -3 
    126 dbus-daemon
    117 Discord
     89 Xorg

I'm on the latest Ubuntu 26.04 fully patched and having audio issues.

What I think is going on is:

1. The snd_hda_intel driver seems to have a hard time reliably detecting my sound hardware

2. This results in Linux thinking that my sound hardware keeps changing

3. Which results in Ubuntu trying to keep up - with sometimes hundreds of changes per minute visible in the sound widget (top right corner of screen) and

4. Frequent On Screen Display (OSD) asking me to "Select Audio Device", which are blocking and disrupt whatever else I'm doing.

Here is what I can see in dmesg:

$ sudo dmesg | grep snd_hda
[   22.065071] snd_hda_intel 0000:01:00.1: Disabling MSI
[   22.065086] snd_hda_intel 0000:01:00.1: Handle vga_switcheroo audio client
[   22.282091] snd_hda_codec_alc269 hdaudioC0D0: ALC3226: picked fixup  (pin match)
[   22.282665] snd_hda_codec_alc269 hdaudioC0D0: autoconfig for ALC3226: line_outs=1 (0x16/0x0/0x0/0x0/0x0) type:line
[   22.282671] snd_hda_codec_alc269 hdaudioC0D0:    speaker_outs=1 (0x14/0x0/0x0/0x0/0x0)
[   22.282673] snd_hda_codec_alc269 hdaudioC0D0:    hp_outs=1 (0x15/0x0/0x0/0x0/0x0)
[   22.282675] snd_hda_codec_alc269 hdaudioC0D0:    mono: mono_out=0x0
[   22.282676] snd_hda_codec_alc269 hdaudioC0D0:    inputs:
[   22.282677] snd_hda_codec_alc269 hdaudioC0D0:      Internal Mic=0x12
[   22.282679] snd_hda_codec_alc269 hdaudioC0D0:      Front Mic=0x18
[   22.282681] snd_hda_codec_alc269 hdaudioC0D0:      Dock Mic=0x19
[   22.282682] snd_hda_codec_alc269 hdaudioC0D0:      Headset Mic=0x1a
[   22.428525] snd_hda_intel 0000:01:00.1: bound 0000:01:00.0 (ops nv50_audio_component_bind_ops [nouveau])
[   37.254074] snd_hda_intel 0000:00:1b.0: azx_get_response timeout, switching to polling mode: last cmd=0x00270500
[   38.255078] snd_hda_intel 0000:00:1b.0: No response from codec, disabling MSI: last cmd=0x00270500
[   38.519998] snd_hda_codec_nvhdmi hdaudioC2D0: HDMI: pin NID 0x6 not registered
[   39.256075] snd_hda_intel 0000:00:1b.0: azx_get_response timeout, switching to single_cmd mode: last cmd=0x00270500
[   48.357998] snd_hda_intel 0000:00:1b.0: spurious response 0x0:0x0, last cmd=0x270500
[   48.358038] snd_hda_intel 0000:00:1b.0: spurious response 0x0:0x0, last cmd=0x370500
[   48.358079] snd_hda_intel 0000:00:1b.0: spurious response 0x0:0x0, last cmd=0x670500
[   48.358121] snd_hda_intel 0000:00:1b.0: spurious response 0x0:0x0, last cmd=0x870500
[   48.358163] snd_hda_intel 0000:00:1b.0: spurious response 0x0:0x0, last cmd=0x970500
[   48.358205] snd_hda_intel 0000:00:1b.0: spurious response 0x0:0x0, last cmd=0x1270500
[   48.358246] snd_hda_intel 0000:00:1b.0: spurious response 0x0:0x0, last cmd=0x1370500
[   48.358287] snd_hda_intel 0000:00:1b.0: spurious response 0x0:0x0, last cmd=0x1470500
[   48.358329] snd_hda_intel 0000:00:1b.0: spurious response 0x0:0x0, last cmd=0x1570500
[   48.358372] snd_hda_intel 0000:00:1b.0: spurious response 0x0:0x0, last cmd=0x1670500
[   53.373626] snd_hdac_bus_update_rirb: 187 callbacks suppressed
[   53.373633] snd_hda_intel 0000:00:1b.0: spurious response 0x0:0x0, last cmd=0x270500
[   53.373665] snd_hda_intel 0000:00:1b.0: spurious response 0x0:0x0, last cmd=0x370500
[   53.373708] snd_hda_intel 0000:00:1b.0: spurious response 0x0:0x0, last cmd=0x670500
[   53.373749] snd_hda_intel 0000:00:1b.0: spurious response 0x0:0x0, last cmd=0x870500
[   53.373792] snd_hda_intel 0000:00:1b.0: spurious response 0x0:0x0, last cmd=0x970500
[   53.373832] snd_hda_intel 0000:00:1b.0: spurious response 0x0:0x0, last cmd=0x1270500
[   53.373873] snd_hda_intel 0000:00:1b.0: spurious response 0x0:0x0, last cmd=0x1370500
[   53.373915] snd_hda_intel 0000:00:1b.0: spurious response 0x0:0x0, last cmd=0x1470500
[   53.373958] snd_hda_intel 0000:00:1b.0: spurious response 0x0:0x0, last cmd=0x1570500
[   53.373999] snd_hda_intel 0000:00:1b.0: spurious response 0x0:0x0, last cmd=0x1670500
[   71.009964] snd_hdac_bus_update_rirb: 106 callbacks suppressed

dmesg is FULL of "spurious response" messages - hundreds and hundreds of them.

$ cat /proc/asound/card*/codec\#*|grep -i codec
Codec: Realtek ALC3226
Codec: Nvidia GPU 42 HDMI/DP

I have read How to disable 'Select Audio Device' popup when plugging in a device and installed the suggested GNOME plugin but it has made no difference. I am NOT plugging in a new device or changing anything when this behaviour happens. It happens when I'm reading my emails, or when the system is completely idle. I can't connect this behaviour to anything I do, as a user of the system.

Sometimes, this issue is not visible for an entire day - no OSD popup. Other times, it completely blocks my ability to use the system, as I get OSD popups every few seconds, making my system completely unusable.

Here is the start of dmesg that shows you the kind of hardware I'm on (an old Dell Precision M4800 laptop):

$ sudo dmesg | head -100
[    0.000000] Linux version 7.0.0-15-generic (buildd@lcy02-amd64-048) (x86_64-linux-gnu-gcc (Ubuntu 15.2.0-16ubuntu1) 15.2.0, GNU ld (GNU Binutils for Ubuntu) 2.46) #15-Ubuntu SMP PREEMPT_DYNAMIC Wed Apr 22 16:06:43 UTC 2026 (Ubuntu 7.0.0-15.15-generic 7.0.0)
[    0.000000] Command line: BOOT_IMAGE=/vmlinuz-7.0.0-15-generic root=/dev/mapper/ubuntu--vg-ubuntu--lv ro quiet splash crashkernel=2G-4G:320M,4G-32G:512M,32G-64G:1024M,64G-128G:2048M,128G-:4096M
[    0.000000] KERNEL supported cpus:
[    0.000000]   Intel GenuineIntel
[    0.000000]   AMD AuthenticAMD
[    0.000000]   Hygon HygonGenuine
[    0.000000]   Centaur CentaurHauls
[    0.000000]   zhaoxin   Shanghai  
[    0.000000] BIOS-provided physical RAM map:
[    0.000000] BIOS-e820: [mem 0x0000000000000000-0x00000000000913ff]  System RAM
[    0.000000] BIOS-e820: [mem 0x0000000000091400-0x000000000009ffff]  device reserved
[    0.000000] BIOS-e820: [gap 0x00000000000a0000-0x00000000000dffff]
[    0.000000] BIOS-e820: [mem 0x00000000000e0000-0x00000000000fffff]  device reserved
[    0.000000] BIOS-e820: [mem 0x0000000000100000-0x00000000c1922fff]  System RAM
[    0.000000] BIOS-e820: [mem 0x00000000c1923000-0x00000000c1929fff]  ACPI NVS
[    0.000000] BIOS-e820: [mem 0x00000000c192a000-0x00000000c2556fff]  System RAM
[    0.000000] BIOS-e820: [mem 0x00000000c2557000-0x00000000c2a35fff]  device reserved
[    0.000000] BIOS-e820: [mem 0x00000000c2a36000-0x00000000cadb2fff]  System RAM
[    0.000000] BIOS-e820: [mem 0x00000000cadb3000-0x00000000caffffff]  device reserved
[    0.000000] BIOS-e820: [mem 0x00000000cb000000-0x00000000cb756fff]  System RAM
[    0.000000] BIOS-e820: [mem 0x00000000cb757000-0x00000000cb7fffff]  device reserved
[    0.000000] BIOS-e820: [mem 0x00000000cb800000-0x00000000cbf92fff]  System RAM
[    0.000000] BIOS-e820: [mem 0x00000000cbf93000-0x00000000cbffffff]  ACPI data
[    0.000000] BIOS-e820: [mem 0x00000000cc000000-0x00000000cd6f5fff]  System RAM
[    0.000000] BIOS-e820: [mem 0x00000000cd6f6000-0x00000000cd7fffff]  ACPI NVS
[    0.000000] BIOS-e820: [mem 0x00000000cd800000-0x00000000cecdbfff]  System RAM
[    0.000000] BIOS-e820: [mem 0x00000000cecdc000-0x00000000ceffffff]  device reserved
[    0.000000] BIOS-e820: [gap 0x00000000cf000000-0x00000000f7ffffff]
[    0.000000] BIOS-e820: [mem 0x00000000f8000000-0x00000000fbffffff]  device reserved
[    0.000000] BIOS-e820: [gap 0x00000000fc000000-0x00000000febfffff]
[    0.000000] BIOS-e820: [mem 0x00000000fec00000-0x00000000fec00fff]  device reserved
[    0.000000] BIOS-e820: [gap 0x00000000fec01000-0x00000000fecfffff]
[    0.000000] BIOS-e820: [mem 0x00000000fed00000-0x00000000fed03fff]  device reserved
[    0.000000] BIOS-e820: [gap 0x00000000fed04000-0x00000000fed1bfff]
[    0.000000] BIOS-e820: [mem 0x00000000fed1c000-0x00000000fed1ffff]  device reserved
[    0.000000] BIOS-e820: [gap 0x00000000fed20000-0x00000000fedfffff]
[    0.000000] BIOS-e820: [mem 0x00000000fee00000-0x00000000fee00fff]  device reserved
[    0.000000] BIOS-e820: [gap 0x00000000fee01000-0x00000000feffffff]
[    0.000000] BIOS-e820: [mem 0x00000000ff000000-0x00000000ffffffff]  device reserved
[    0.000000] BIOS-e820: [mem 0x0000000100000000-0x000000042dffffff]  System RAM
[    0.000000] NX (Execute Disable) protection: active
[    0.000000] APIC: Static calls initialized
[    0.000000] SMBIOS 2.7 present.
[    0.000000] DMI: Dell Inc. Precision M4800/0J0DMW, BIOS A26 06/13/2019
[    0.000000] DMI: Memory slots populated: 2/4
[    0.000000] tsc: Fast TSC calibration using PIT
[    0.000000] tsc: Detected 2793.519 MHz processor
[    0.001064] e820: update [mem 0x00000000-0x00000fff] System RAM ==> device reserved
[    0.001066] e820: remove [mem 0x000a0000-0x000fffff] System RAM
[    0.001075] last_pfn = 0x42e000 max_arch_pfn = 0x400000000
[    0.001081] total RAM covered: 16352M
[    0.001224] Found optimal setting for mtrr clean up
[    0.001224]  gran_size: 64K  chunk_size: 64M     num_reg: 8      lose cover RAM: 0G
[    0.001228] MTRR map: 8 entries (5 fixed + 3 variable; max 25), built from 10 variable MTRRs
[    0.001230] x86/PAT: Configuration [0-7]: WB  WC  UC- UC  WB  WP  UC- WT  
[    0.001614] e820: update [mem 0xd0000000-0xffffffff] System RAM ==> device reserved
[    0.001618] last_pfn = 0xcecdc max_arch_pfn = 0x400000000
[    0.008013] found SMP MP-table at [mem 0x000fda90-0x000fda9f]
[    0.008027] Using GB pages for direct mapping
[    0.008887] RAMDISK: [mem 0x330cd000-0x3585dfff]
[    0.008891] ACPI: Early table checksum verification disabled
[    0.008894] ACPI: RSDP 0x00000000000EF120 000024 (v02 DELL  )
[    0.008897] ACPI: XSDT 0x00000000CBFD3090 00009C (v01 DELL   CBX3     01072009 AMI  00010013)
[    0.008903] ACPI: FACP 0x00000000CBFE5070 00010C (v05 DELL   CBX3     01072009 AMI  00010013)
[    0.008908] ACPI: DSDT 0x00000000CBFD31B8 011EB1 (v02 DELL   CBX3     00000014 INTL 20120711)
[    0.008911] ACPI: FACS 0x00000000CD7FE080 000040
[    0.008913] ACPI: APIC 0x00000000CBFE5180 000092 (v03 DELL   CBX3     01072009 AMI  00010013)
[    0.008916] ACPI: FPDT 0x00000000CBFE5218 000044 (v01 DELL   CBX3     01072009 AMI  00010013)
[    0.008918] ACPI: SLIC 0x00000000CBFE5260 000176 (v03 DELL   CBX3     01072009 MSFT 00010013)
[    0.008921] ACPI: LPIT 0x00000000CBFE53D8 00005C (v01 DELL   CBX3     00000000 AMI. 00000005)
[    0.008924] ACPI: SSDT 0x00000000CBFE5438 000228 (v01 INTEL  sensrhub 00000000 INTL 20120711)
[    0.008926] ACPI: SSDT 0x00000000CBFE5660 000160 (v01 Intel  zpodd    00001000 INTL 20120711)
[    0.008929] ACPI: SSDT 0x00000000CBFE57C0 000AD8 (v01 PmRef  CpuPm    00003000 INTL 20120711)
[    0.008932] ACPI: HPET 0x00000000CBFE6298 000038 (v01 DELL   CBX3     01072009 AMI. 00000005)
[    0.008934] ACPI: SSDT 0x00000000CBFE62D0 000447 (v01 SataRe SataTabl 00001000 INTL 20120711)
[    0.008937] ACPI: MCFG 0x00000000CBFE6718 00003C (v01 DELL   CBX3     01072009 MSFT 00000097)
[    0.008940] ACPI: ASF! 0x00000000CBFE6758 0000A5 (v32 INTEL   HCG     00000001 TFSM 000F4240)
[    0.008942] ACPI: MSDM 0x00000000CBFE6800 000055 (v03 DELL   CBX3     06222004 AMI  00010013)
[    0.008945] ACPI: DMAR 0x00000000CBFE6858 000080 (v01 INTEL  HSW      00000001 INTL 00000001)
[    0.008948] ACPI: SSDT 0x00000000CBFE68D8 001E79 (v01 NvdRef NvdTabl  00001000 INTL 20120711)
[    0.008950] ACPI: Reserving FACP table memory at [mem 0xcbfe5070-0xcbfe517b]
[    0.008951] ACPI: Reserving DSDT table memory at [mem 0xcbfd31b8-0xcbfe5068]
[    0.008952] ACPI: Reserving FACS table memory at [mem 0xcd7fe080-0xcd7fe0bf]
[    0.008953] ACPI: Reserving APIC table memory at [mem 0xcbfe5180-0xcbfe5211]

Would very much appreciate any guidance on how to troubleshoot this, report this as a bug, or find workarounds that make my Ubuntu system reliably usable. If there is a way to disable the sound system completely when I don't need it, only to be re-enabled later, I'll happily use that as a short term workaround.

EDIT: A friend gave me the idea this may be a power management issue. It's true that this is an old laptop, and I do put it to sleep multiple times a day instead of powering off. So I thought let's explore the power management angle first. What I did was:

(1) Instruct the sound module to disable its power management features by creating this file: /etc/modprobe.d/audio-powersave.conf containing these instructions:

# Disable Intel HDA power management
options snd_hda_intel power_save=0
options snd_hda_intel power_save_controller=N
options snd_ac97_codec power_save=0

(2) Rebuilt the init ram filesystem to ensure these options are respected on boot:

sudo update-initramfs -u

(3) Reboot

(4) Check that power management of my sound driver is now off:

ubuntu:~$ cat /sys/module/snd_hda_intel/parameters/power_save
0

I am now keeping my fingers crossed, err I mean testing to see whether the bug will re-occur, and I'll report back.

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

Here is my provider data for the APN:

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

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

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

Bellow is the command line result and the logs:

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

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

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

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

Edit 2:

Here are the new logs:

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

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

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

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

My personal guess is this is due to sssd

Linux Aspire 6.17.0-29-generic 24.04 24.04.4 LTS (Noble Numbat)

2026-05-18T08:30:52.269250+01:00 Aspire systemd[1]: anacron.service: Deactivated successfully.
2026-05-18T08:34:52.315822+01:00 Aspire NetworkManager[1371]: <info>  [1779089692.3150] dhcp4 (enp2s0): state changed new lease, address=192.168.1.72
2026-05-18T08:34:52.318697+01:00 Aspire NetworkManager[1371]: <info>  [1779089692.3184] device (enp2s0): conflict detected for IP address 192.168.1.72 with host D8:D6:68:A2:DA:D4
2026-05-18T08:34:52.320334+01:00 Aspire dbus-daemon[1228]: [system] Activating via systemd: service name='org.freedesktop.nm_dispatcher' unit='dbus-org.freedesktop.nm-dispatcher.service' requested by ':1.13' (uid=0 pid=1371 comm="/usr/sbin/NetworkManager --no-daemon" label="unconfined")
2026-05-18T08:34:52.345213+01:00 Aspire systemd[1]: Starting NetworkManager-dispatcher.service - Network Manager Script Dispatcher Service...
2026-05-18T08:34:52.357449+01:00 Aspire dbus-daemon[1228]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
2026-05-18T08:34:52.357853+01:00 Aspire systemd[1]: Started NetworkManager-dispatcher.service - Network Manager Script Dispatcher Service.
2026-05-18T08:34:52.757254+01:00 Aspire NetworkManager[1371]: <info>  [1779089692.7570] dhcp4 (wlp3s0): state changed new lease, address=192.168.1.69
2026-05-18T08:35:01.596765+01:00 Aspire sssd_nss[6855]: Shutting down (status = 0)
2026-05-18T08:35:01.605212+01:00 Aspire systemd[1]: sssd-nss.service: Deactivated successfully.
2026-05-18T08:35:01.692639+01:00 Aspire systemd[1]: Started sssd-nss.service - SSSD NSS Service responder.
2026-05-18T08:35:01.778674+01:00 Aspire sssd_nss[6961]: Starting up

I recently noticed that my scene in a new Unity project was lagging/getting choppy even though it was just a tilemap with a handful (~10) game objects thrown in. Looking in the profiler I found that there was a thread called “Audio PulseAudio Mixer” that seemed to be causing large frame time spikes: from ~5ms to ~125ms. This seemed strange because there is no audio in the game. No audio listener, even. Nothing that I am aware of that could remotely require any activity in an audio thread. I even have "Disable Unity Audio" checked in Project Settings.

I’m on Ubuntu 24.04.4 as a recent Windows refugee. I am aware that Unity is still a work-in-progress on Ubuntu, but I am very keen to not have to go back to Windows (or head over to Mac).

pactl info | grep 'Server Name'

returns

Server Name: PulseAudio (on PipeWire 1.0.5)

I'm using a Focusrite Scarlett 2i2 (3rd Gen) audio interface, if that's at all relevant.

Many thanks for any help.

I've been having trouble getting Multipass to run Ubuntu instances on Apple Silicon M2 and M3.

The problem, at launch, is:

[2026-04-30T16:33:59.021] [error] [pluto] process error occurred Crashed program: qemu-system-aarch64; error: Process crashed
--
[2026-04-30T16:38:30.684] [debug] [arp] [74162] started: arp -an
[2026-04-30T16:38:30.783] [debug] [pluto] QMP: {"QMP": {"version": {"qemu": {"micro": 1, "minor": 2, "major": 8}, "package": ""}, "capabilities": ["oob"]}}
[2026-04-30T16:38:30.823] [warning] [pluto] Unexpected error in object_property_find_err() at ../../../qom/object.c:1330:
qemu-system-aarch64: Property 'host-arm-cpu.sme' not found

• macOS 26.4.1 25E253

• Apple MacBook Air M5

I have tried all sorts of things: uninstalling, installing with brew from source, and using the qemu version from ports.

There are lots of confusing discussions out there related to these settings in logind.conf

HandleLidSwitch
HandleLidSwitchExternalPower
HandleLidSwitchDocked
LidSwitchIgnoreInhibited

Most people seem to want to keep their laptops running with the lid closed when connected to an external monitor and this is now the default behavior in Ubuntu 22.04

I want the opposite, and that now seems to be impossible.
The clearest explanation I have found of how its intended to work is from Poettering himself here

My situation in short:
HandleLidSwitch*=suspend
LidSwitchIgnoreInhibited=true

But gsd-power is blocking handle-lid-switch when a monitor is connected (shown by:systemd-inhibit --list --mode=block), and LidSwitchIgnoreInhibited=true has no effect since this is a "low level inhibitor".

Additionally IgnoreLid=true in UPower.conf does not stop gsd-power from taking the lock and this is now possibly "as designed"

I read a suggestion somewhere that dbus could possibly be used to block upower from taking this lock, but I can find no further details of how this could be done.

All in all I would have thought this would be a quite common and reasonable behavior to want from a laptop, but now I'm stuck sideways way down this rabbit hole and I could really use some help getting out!

After upgrading to 21.10, the internal speakers aren't listed as separate device anymore (now: speaker+).

• Therefore cannot be muted individually, or automatically, when notebook is on dock & line-out is connected. Still mutes, when
• plugging in direct on notebooks 3.5mm headphones out (changes from speaker+ -> headphones in alsamixer).

lspci shows: 00:1f.3 Audio device: Intel Corporation Sunrise Point-LP HD Audio (rev 21)

Alsamixer shows:

• Device: HDA Intel PCH Chip:
• Conexant CX20724

could not figure out, any working set in: hdajackretask

Any help appreciated

Edit2 (SUCCESS): First off, thank you to all who responded! I got my Plex server working perfectly. I didn't get email notifications with updates to the question for some reason so I just checked and got it all working.

@Terrance, I did manually create an actual mount point under "/media/HDD-M" (HDD-M s the drive name, HDD-Movies) through the initial guide I referenced. It did seem to work but Plex was still blind. Following that new mount point would lead me to my drive and allow access but made no difference to Plex. After following @user535733 response I realized the original guide I found may have allowed me to screw things up so I followed it backwards and undid everything before trying the link you posted @Terrance which worked after I messed with the mount point renaming a bit until Ubuntu was satisfied with my efforts. Just like that, it read and streamed without a hitch. For some reason, Ubuntu didn't like "/media/HDD-M" but once I changed it to "/media/SG" it worked without issue. No clue why that syntax made any sort of difference, but it did..

Either way, I really appreciate the assistance so much from you all. I was running Ubuntu fulltime ~13 years ago as a young nerdy kiddo and abandoned it when my mom got me a Macbook for graduating high school early so I forgot most of what I had learned. I plan on this getting me back into linux and eventually being proficient enough to help others like you all helped me.

Edit: I followed @user535733 instructions and immediately hit a wall at step 2 trying to edit permissions. I tried changing the file access to read and write and that seemed to work but had no effect on Plex. Upon trying to change the group I was modifying permissions for, a message came up stating I do not have permission to change the group.

I started off this incredibly frustrating journey a few weeks ago and came to this guide when plex couldn't see directories on my external: https://forums.plex.tv/t/using-ext-ntfs-or-other-format-drives-internal-or-external-on-linux/198544

This flew over my head very fast because of the way it was written, maybe I'm just an idiot and these steps really are perfectly formatted; but I couldn't ever get it to work at any point no matter how many times I tried.

Found AskUbuntu and looked through it which brought me to this post (plex folder access)

It was several years old which concerned me but I figured I would give it a shot. All the commands seemed to work fine but my drive is still inaccessible by Plex.

It is perfectly visible on my desktop, I understand this is a permissions issue with the way Linux is designed, not a fault of Plex or anything.

If anyone could help me out, I would really appreciate it because it's starting to drive me a bit crazy.

My system is not even letting me enter my password. As soon as i select the username to enter my password i am getting an error "That didnt work Please try again." I tried to login to tty by pressing alt+ctrl+f3 even there it is not working. it says invalid login as soon as i enter my username and press enter.

After bringing up a dhcp controlled instance in AWS I have made changes to the /etc/network/interfaces file for custom nameserver and DNS search strings:

auto lo
auto eth0
iface lo inet loopback
dns-nameservers 1.1.1.1 9.9.9.9
dns-search flapjacks.io flapjacks.net

iface eth0 inet dhcp

I was hoping to be able to restart a service to get resolv.conf to reflect these changes, but I do not know the service to restart... the changes do show up after reboot however. Does anyone know what service should update this?

the title says it all. is there a tool?

I installed ExifTool, but can't find a way to remove all at once with one command.

I'm installing Ubuntu (12.04) right now.

I wanted to know if additional language packs have to be downloaded because my Internet is very slow. I chose English as my language.