https://bugs.kde.org/show_bug.cgi?id=526811
Bug ID: 526811
Summary: Scrolling stutters in recent Plasma version including
6.7
Classification: Plasma
Product: kwin
Version First unspecified
Reported In:
Platform: unspecified
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: platform-drm
Assignee: [email protected]
Reporter: [email protected]
CC: [email protected]
Target Milestone: ---
Intel Meteor Lake iGPU (8086:7d55), i915, kernel 7.2.3, Plasma 6.7.x, Wayland,
4K 120 Hz external monitor, internal screen off
testufo: 115–120 fps with stutter warnings by default, worse with
KWIN_DRM_DISABLE_TRIPLE_BUFFERING=1, steady 120 with KWIN_DRM_NO_AMS=1
GPU not busy according to intel_gpu_top, and scaling makes no difference
the xe driver was smoother but had TLB invalidation timeouts
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