SUMMARY STEPS TO REPRODUCE 1. Do stuff OBSERVED RESULT Computer freezes at random moments, roughly once a day. Requires restart/reset. Noticeably it's the window that freezes, audio still continues from programs such as Zoom. during my most recent freeze, I once tried alt tabbing to a Youtube video that paused and tried to resume it but it didn't work (couldn't hear anything). So it seems like KWin isn't able to process keyboard events at that moment in time. This could just be a Kernel issue, but am happy to collect any other useful info needed to diagnose exactly what is going on. EXPECTED RESULT No freezing SOFTWARE/OS VERSIONS Operating System: Kubuntu 20.04 KDE Plasma Version: 5.18.5 KDE Frameworks Version: 5.68.0 Qt Version: 5.12.8 Kernel Version: 5.4.0-42-generic OS Type: 64-bit Processors: 12 × Intel® Core™ i7-5820K CPU @ 3.30GHz Memory: 15.5 GiB of RAM ADDITIONAL INFORMATION
Graphics Info: Nvidia GeForce GTX 780 (nouveau) (VGA to main monitor) Nvidia GeForce 8500 GT (nouveau) (VGA to secondary monitor) OpenGL Version: 4.3 (Compatibility Profile) Mesa 20.0.4 Using X-Server
Please confirm if that happens with openbox (you can use that on top of plasma) Please also include your nvidia driver version.
marking as needsinfo as per comment
I've seen similar GPU hangups with i915 video driver when playing StarCraft2, kernel messages contained this: Aug 30 17:39:52 glue kernel: i915 0000:00:02.0: Resetting rcs0 for preemption time out Aug 30 17:39:52 glue kernel: i915 0000:00:02.0: SC2.exe[55786] context reset due to GPU hang Aug 30 17:39:52 glue kernel: i915 0000:00:02.0: GPU HANG: ecode 9:1:84df7cfc, in SC2.exe [55786] Please check kernel log for similar messages (use dmesg or look in /var/log/messages).
Dear Bug Submitter, This bug has been in NEEDSINFO status with no change for at least 15 days. Please provide the requested information as soon as possible and set the bug status as REPORTED. Due to regular bug tracker maintenance, if the bug is still in NEEDSINFO status with no change in 30 days the bug will be closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging If you have already provided the requested information, please mark the bug as REPORTED so that the KDE team knows that the bug is ready to be confirmed. Thank you for helping us make KDE software even better for everyone!
This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!
dmesg output after last hang: https://invent.kde.org/-/snippets/1393
This does not have all the info requested