https://bugs.kde.org/show_bug.cgi?id=512968
Bug ID: 512968
Summary: flickering on external screen after commit
03f77cf9e7041d4eeefc7c9da9de4ee7284c9920
Classification: Plasma
Product: kwin
Version First git master
Reported In:
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: compositing
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 187351
--> https://bugs.kde.org/attachment.cgi?id=187351&action=edit
external screen flickering
SUMMARY
Flickers/artifacts on any external screen connected via HDMI to laptop after
commit 03f77cf9e7041d4eeefc7c9da9de4ee7284c9920
(https://invent.kde.org/plasma/kwin/-/merge_requests/8436).
STEPS TO REPRODUCE
1. connect external screen via HDMI
2. switch virtual desktops
OBSERVED RESULT
Screen artifacts, see attachment.
EXPECTED RESULT
Smooth transition, like before commit 03f77c.
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 6.5.80
KDE Frameworks Version: 6.21.0
Qt Version: 6.10.1
Kernel Version: 6.18.0-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 20 × 13th Gen Intel® Core™ i9-13900H
Memory: 16 GiB of RAM (15.2 GiB usable)
Graphics Processor 1: Mesa Intel® Graphics
Graphics Processor 2: NVIDIA GeForce RTX 4060 Laptop GPU/PCIe/SSE2
Manufacturer: ASUSTeK COMPUTER INC.
Product Name: ROG Zephyrus G16 GU603VV_GU603VV
System Version: 1.0
ADDITIONAL INFORMATION
I think this also happens during normal usage, and not just switching desktops.
This only happens on external screen.
There is some randomness and this does not always happen. Happens around once a
minute.
I tested the commit before 03f77cf9e7041d4eeefc7c9da9de4ee7284c9920 for quite a
while and cannot see the issue. Hence I am fairly sure that 03f77c is the first
bad commit.
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