I have configured my monitor's power settings to automatically turn off (go blank) after 5 minutes (System Settings->Power Management, Display and Brightness, Turn off screen: 5 min). After upgrading my openSUSE 15.6 desktop to Plasma 6.3.4 from OBS, there are visual artefacts on the screen after it comes back on - as a result of a key press or mouse move - after turning off after a period of inactivity. See attached screenshot - red arrows point to the "artrfacts". If I perform any action that causes some UI change, like resize a window or right-click to display context menu, etc - then the window with the artefacts gets repainted and they disappear. This has never happened prior to upgrade to Plasma 6.3.4 (from 6.3.3). Operating System: openSUSE Leap 15.6 KDE Plasma Version: 6.3.4 KDE Frameworks Version: 6.12.0 Qt Version: 6.9.0 Kernel Version: 6.4.0-150600.23.47-default (64-bit) Graphics Platform: X11 Processors: 32 × AMD Ryzen 9 5950X 16-Core Processor Memory: 125.7 GiB of RAM Graphics Processor: NVIDIA GeForce RTX 4060 Ti Manufacturer: ASUS
Created attachment 180136 [details] example of visual artefacts after monitor turns back on
The affected app in the screenshot is Konsole I'm not able to reproduce this with git-master X11, on a system with an nvidia gpu
Actually yes, the issue only seems to affect Konsole. Does not matter what is running in that Konsole tab.
Some questions for you: 1. Does it happen on Wayland too, or only on X11? 2. Can you verify that your system is set up according to https://community.kde.org/Distributions/Packaging_Recommendations#Proprietary_NVidia_driver_configuration? 2a. If not, can you follow the advice there, reboot, and see if it's still happening?
1. Never used Wayland, only X11. 2. Yes 2a. Rebooted yesterday to install latest kernel update, the issue happened before reboot and keeps happenning after reboot.
> 1. Never used Wayland, only X11. Sure but can you try?
(In reply to Nate Graham from comment #6) > > 1. Never used Wayland, only X11. > Sure but can you try? Just tried. The issue does not appear to happen under Wayland. (Unrelated to this issue, but everything - fonts, icons, toolbars - looked larger under Wayland than under X11 - does scaling work differently under Wayland than under X11? There is a weird gap between the taskbar panel and the bottom of the screen which is not present under X11.)
(then logged out of Wayland, logged back into Plasma X11 and my session was messed up).
This seems to have been fixed in Plasma 6.4.x. Definitely no longer happens with the following from openSUSE build service: KDE Plasma Version: 6.4.2 KDE Frameworks Version: 6.15.0 Qt Version: 6.9.1
That's good news, thanks for letting us know. I'll close this out for now. If the bug recurs, feel free to reopen this report.