SUMMARY STEPS TO REPRODUCE 1. open a kde session 2. surf on the web or watch videos with YouTube or VLC 3. After a while OBSERVED RESULT After a while, the desktop disappears. There is just a black screen with only the current app window. you can display again the desktop with "plasmashell --replace" EXPECTED RESULT the desktop does not disaapears. Operating System: openSUSE Tumbleweed 20241217 KDE Plasma Version: 6.2.4 KDE Frameworks Version: 6.9.0 Qt Version: 6.8.1 Kernel Version: 6.11.8-1-default (64-bit) Graphics Platform: X11 Processors: 8 × 12th Gen Intel® Core™ i3-12100 Memory: 15.3 Gio of RAM Graphics Processor: Mesa Intel® UHD Graphics 730 Manufacturer: ASRock Product Name: B760M-HDV/M.2 D4 ADDITIONAL INFORMATION there is only one monitor.
This never happens on Wayland, right? Can you attach a journal log that includes the moment when the desktop gets lost and turns black?
(In reply to Nate Graham from comment #1) > This never happens on Wayland, right? > I will check it. > Can you attach a journal log that includes the moment when the desktop gets > lost and turns black? How to get a journal log ?
(In reply to Philippe ROUBACH from comment #2) > How to get a journal log ? `journalctl`
Here is the journal log. https://transfert.free.fr/7gPBJWc
The link is valid for 30 days.
Hmm, the file has a million lines of text in it. It would be helpful if you could pinpoint the time when this happens, or get a log that only has 5 seconds worth of text on either side of the issue.
It's a random phenomenon. How i could trigger journalctl ?
When it happens, run `journalctl --reverse`. Hit the space bar a few times to show content from before it happened, and then copy-and-paste here.
Created attachment 177167 [details] result of journalctl --reverse
I see from that snippet that you unlocked the screen using a fingerprint. Did the desktop go black after that? Or did it happen at some other time?
No I don't use any fingerprint just password. I did not unlock anything. I was reading a YouTube video when desktop disappeared.
Perhaps in the past I test a fingerprint reader, but I unplug it for a long time.
This part of the system log shows the screen locker unlocking. If that's not what was happening at the time, then it's the wrong part of the system log. You can see on the left side there are timestamps; you should be able to use these to get the part of log that includes the time when the issue happened.
Randomly - the desktop disappears when reading a website, viewing video with Firefox, Chrome or VLC - after a while, I move the mouse cursor, I get a notification from Skype "user is connected" and the icon switches from white to green. - I lost the sound output. I wonder if a locking process starts falsely and does not terminate.
We really need the right logs in order to find out what's happening. Can I ask you to run journalctl right after the screen goes black, and get logs for the 5 minutes before, up until the time you run journalctl? If you want to get logs from a particular time to another time you can use something like this: sudo journalctl --since "2025-01-08 17:15:00" --until "2025-01-08 17:20:00" Just adjust the date and times. Thanks!
Created attachment 177320 [details] sudo journalctl --since "2025-01-13 15:08:00" --until "2025-01-13 15:10:00" > journalctl.log It seems I capture something interestting
Lots of KScreen action going on there. And you still say there's only one monitor, right? Is there any any chance a second one plugged in but not turned on, or something like that?
(In reply to Nate Graham from comment #17) > Lots of KScreen action going on there. And you still say there's only one > monitor, right? Is there any any chance a second one plugged in but not > turned on, or something like that? I don't get any second monitor. My explanation : a lock screen begins the desktop disappears I interact with the PC lockscreen process stops Desktop is not restored.
Created attachment 177354 [details] sudo journalctl --since "2025-01-14 20:30:00" --until "2025-01-14 20:51:00" > journalctl.log I was viewing a video with VLC when I noticed that the desktop had disappeared.
Thanks for the new logs.
I get a dGPU Nvidia. I use it only for computing.
Created attachment 177399 [details] sudo journalctl --since "2025-01-16 11:00:00" --until "2025-01-16 11:28:00" > journalctl.log I was surfing, reading, the web.
problem still there. Operating System: openSUSE Tumbleweed 20250301 KDE Plasma Version: 6.3.2 KDE Frameworks Version: 6.11.0 Qt Version: 6.8.2 Kernel Version: 6.13.4-1-default (64-bit) Graphics Platform:X11 Processors: 8 × 12th Gen Intel® Core™ i3-12100 Memory: 15.3 Gio of RAM Graphics Processor 1: Mesa Intel® UHD Graphics 730 Graphics Processor 2: llvmpipe Manufacturer: ASRock Product Name: B760M-HDV/M.2 D4