https://bugs.kde.org/show_bug.cgi?id=495884
Bug ID: 495884
Summary: Terrible resize performance running in Wayland mode
Classification: Applications
Product: kolourpaint
Version: 24.08.2
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: kolourpaint-supp...@lists.sourceforge.net
Reporter: da...@averyoriginal.site
Target Milestone: ---
SUMMARY
Resizing selections slows to a crawl with Kolourpaint running in Wayland mode.
With QT_QPA_PLATFORM=xcb the issue is improved (but not fully solved)
STEPS TO REPRODUCE
1. Run Kolourpaint with QT_QPA_PLATFORM=wayland
2. Draw something or open an image
3. Make a selection
4. Resize it (larger resizes make the issue worse)
OBSERVED RESULT
Resize slows to a crawl but does eventually finish
EXPECTED RESULT
Resize perfectly follows mouse cursor
SOFTWARE/OS VERSIONS
Operating System: EndeavourOS
KDE Plasma Version: 6.2.2
KDE Frameworks Version: 6.7.0
Qt Version: 6.8.0
Kernel Version: 6.11.5-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 4800H with Radeon Graphics
Memory: 15,0 GiB of RAM
Graphics Processor: AMD Radeon Graphics
Manufacturer: ASUSTeK COMPUTER INC.
Product Name: ASUS TUF Gaming A17 FA706IU_FA706IU
System Version: 1.0
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