Bug 524280 - QEMU/KVM guest with virtio-gpu, no 3D acceleration. After update from kwin 6.6.5 to 6.7.0 and 6.7.4 cursor is drawn in the wrong place, clicks somewhere else. Kernel log shows errors virtio_gpu. Response 0x1201 (command 0x101).
Summary: QEMU/KVM guest with virtio-gpu, no 3D acceleration. After update from kwin 6....
Status: RESOLVED FIXED
Alias: None
Product: kwin
Classification: Plasma
Component: platform-drm (other bugs)
Version First Reported In: 6.7.4
Platform: Arch Linux Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on: 524269
Blocks:
  Show dependency tree / graph
 
Reported: 2026-08-15 07:14 UTC by Base Devel
Modified: 2026-08-26 04:38 UTC (History)
4 users (show)

See Also:
Latest Commit:
Version Fixed/Implemented In: 6.7.5
Sentry Crash Report:

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Description Base Devel 2026-08-15 07:14:56 UTC 
QEMU/KVM guest with virtio-gpu, no 3D acceleration. After update from kwin 6.6.5 to 6.7.0 and 6.7.4 cursor is drawn in the wrong place, clicks somewhere else. Kernel log shows errors virtio_gpu. Response 0x1201 (command 0x101).

First bad commit 23ded4abae core: add GpuManager for monitoring render
devices. The host pool is 8mb by default and it runs out.