https://bugs.kde.org/show_bug.cgi?id=493012
Bug ID: 493012
Summary: DPMS breaks Adaptive Sync
Classification: Plasma
Product: kwin
Version: 6.1.5
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: major
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: sidpranjale...@protonmail.com
Target Milestone: ---
SUMMARY
After Powerdevil turns the display off (idle DPMS), turning it back on breaks
Adaptive Sync. With Adaptive Sync set to Automatic in Display Configuration,
launching any full screen app turns off the display until the app is no longer
in focus. If Adaptive Sync is set to "Always", the display simply turns off
until the next reboot.
This behavior is not observed in Kwin X11 or Swaywm with Adaptive Sync enabled.
STEPS TO REPRODUCE
1. Allow the display to turn off.
2. Turn the display back on.
3. Attempt to use Adaptive Sync.
OBSERVED RESULT
The display remains black, with even the monitor OSD not rendering.
EXPECTED RESULT
The display stays on and displays content.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 6.1.5
KDE Frameworks Version: 6.5.0
Qt Version: 6.7.2
Kernel Version: 6.10.9-arch1-2 (64-bit)
Graphics Platform: Wayland
Processors: 12 × AMD Ryzen 5 7600 6-Core Processor
Memory: 30.9 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 3070/PCIe/SSE2
ADDITIONAL INFORMATION
This only happens on the nvidia open kernel module, and not on the proprietary
kernel module.
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