https://bugs.kde.org/show_bug.cgi?id=476931
Bug ID: 476931
Summary: Screen rotation rendering quality regression
Classification: Plasma
Product: kwin
Version: 5.27.80
Platform: Archlinux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: compositing
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
Created attachment 163113
--> https://bugs.kde.org/attachment.cgi?id=163113&action=edit
OBS recording in full resolution
SUMMARY
Since version 5.27.80, 90° screen rotation with nvidia GPU leads to distorted
text and cursor rendering.
180° rotation is not affected.
STEPS TO REPRODUCE
1. Install 5.27.80 alpha on system with nvidia GPU
2. Rotate screen 90° left or right
OBSERVED RESULT
Screen content, especially fonts and cursors are rendered in lower resolution.
Straight, angled lines are visibly jagged with crawling pixels when moving.
EXPECTED RESULT
Rotated screen content is rendered in full resolution like in previous versions
(5.27).
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.27.80
KDE Frameworks Version: 5.245.0
Qt Version: 6.6.0
Kernel Version: 6.5.11-zen2-xanmod1-1 (64-bit)
Graphics Platform: Wayland
Processors: 24 × AMD Ryzen 9 3900X 12-Core Processor
Memory: 62.7 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 4090/PCIe/SSE2
Graphics driver: nvidia-beta-dkms 545.29.02-1
Manufacturer: Micro-Star International Co., Ltd.
Product Name: MS-7B89
System Version: 1.0
ADDITIONAL INFORMATION
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