Bug 485919 - Adaptive Sync starts to refresh inconsistently after resuming from sleep mode
Summary: Adaptive Sync starts to refresh inconsistently after resuming from sleep mode
Status: RESOLVED UPSTREAM
Alias: None
Product: kwin
Classification: Plasma
Component: wayland-generic (other bugs)
Version First Reported In: 6.0.4
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2024-04-21 18:59 UTC by Pedro Nishiyama
Modified: 2025-10-17 11:14 UTC (History)
1 user (show)

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Description Pedro Nishiyama 2024-04-21 18:59:55 UTC 
SUMMARY
When the PC goes to sleep mode and resumes, the VRR starts to refresh inconsistently. It occurs mainly at lower framerates, such as 60~90 FPS, even with consistent frametimes.

STEPS TO REPRODUCE
1. Enter sleep mode
2. Resume
3. Open a game
4. Set 60 FPS cap
5. If possible check your monitor refresh OSD

OBSERVED RESULT
The refresh rate is constantly changing from minimum to maximum instead of staying at 60hz.

EXPECTED RESULT
The refresh rate should be at 60hz in this example.

SOFTWARE/OS VERSIONS
Linux: Artix Linux (radeonsi, navi22, LLVM 17.0.6, DRM 3.57, Mesa 24.0.5, 6.8.5-273-tkg-eevdf)
KDE Plasma Version: 6.0.4
KDE Frameworks Version: 6.1.0
Qt Version: 6.7.0
Comment 1 Zamundaaa 2025-10-17 11:14:54 UTC 
This is a driver bug, see https://gitlab.freedesktop.org/drm/amd/-/issues/3546