https://bugs.kde.org/show_bug.cgi?id=498528
Bug ID: 498528
Summary: Adaptive sync causes the display to flicker then not
display any output if an app is either fullscreen or
borderless windowed
Classification: Plasma
Product: kwin
Version: 6.2.5
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: kwin-bugs-n...@kde.org
Reporter: carolanderson0...@gmail.com
Target Milestone: ---
SUMMARY
I have a system with an RX 7600 and a monitor that supports adaptive sync under
Linux, however, when adaptive sync is turned on for that display, it starts to
act odd when something is fullscreened (see observed result)
STEPS TO REPRODUCE
1. make sure the display is using a AMD GPU. I'm not sure if the issue affects
NVIDIA or Intel cards currently
2. make sure the display supports adaptive sync
2. have adaptive sync set to 'automatic,' possibly 'always' causes it too, I
haven't tested yet.
3. go to youtube and fullscreen a video while it's running
OBSERVED RESULT
The display will flicker once then stop showing any output until you hit the
super key. You then have to pretty much close the app, chromium in this case,
to fix it.
EXPECTED RESULT
everything should work as normal, the video should play in fullscreen,
similarly to if I had adaptive sync off.
SOFTWARE/OS VERSIONS
Windows:
macOS:
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: 6.12.8-arch1-1
KDE Plasma Version: 6.2.5
KDE Frameworks Version: 6.9.0
Qt Version: 6.8.1
ADDITIONAL INFORMATION
I have looked at other issues like mine, the closest one being this issue:
https://bugs.kde.org/show_bug.cgi?id=480972 However, since it was reported for
plasma 5 and not 6, it seems to have either not been fixed yet, or has reared
it's ugly head again.
Relevant hardware:
monitor: acer cb292cu (ultrawide 2160x1080@75hrz)
gpu: AMD RX 7600
CPUs (yes I have 2): x2 Intel® Xeon® CPU E5-2698 v4
I also wasn't sure what component this would fall under... It was between
'core' and 'generic' for me
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