https://bugs.kde.org/show_bug.cgi?id=513727
Bug ID: 513727
Summary: Overview/Grid View effects only render on one monitor
(Intel Arc B580, 3 monitors, Wayland)
Classification: Plasma
Product: kwin
Version First unspecified
Reported In:
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: effects-overview
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
SUMMARY:
When triggering Overview (Meta+W) or Grid View on a 3-monitor Wayland setup
with Intel Arc B580, the effect only renders correctly on the leftmost monitor.
The other 2 monitors don't repaint and show stale content until another action
forces a refresh.
STEPS TO REPRODUCE:
1. Have 3 monitors connected via DisplayPort (all with HDR enabled)
2. Use Wayland session
3. Press Meta+W to trigger Overview (or hot corner)
4. Observe: Only leftmost monitor shows the effect
EXPECTED BEHAVIOR:
All 3 monitors show Overview/Grid View effect simultaneously
ACTUAL BEHAVIOR:
Only one monitor renders the effect correctly. The other 2 monitors show
stale/old content. Forcing a refresh (e.g., opening launcher) causes momentary
flicker where the effect partially paints on other monitors before being
overwritten.
RELATED ISSUE:
The "Slide" animation for virtual desktop switching has the exact same symptom
- only one monitor animates. Workaround: Disabling slide animation (using
"Fade" or no animation) fixes desktop switching. However, Overview/Grid View
have no similar animation toggle.
SYSTEM INFORMATION:
- Plasma: 6.4.5
- KWin: 6.4.5
- Qt: (system default)
- Kernel: 6.17.0-8-generic
- GPU: Intel Corporation Battlemage G21 [Arc B580]
- Driver: Mesa 25.2.3-1ubuntu1
- Session: Wayland
- Monitors: 3x DisplayPort at 2560x2880@60Hz (scaled 2x), HDR enabled
MONITOR LAYOUT:
- DP-3: 0,0 (leftmost, rotated) - effect WORKS here
- DP-1: 1440,0 (center)
- DP-2: 2720,0 (rightmost, rotated)
ADDITIONAL NOTES:
- Issue does NOT occur on single monitor
- Hot corner trigger has same issue
- Switching to X11 not tested
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