https://bugs.kde.org/show_bug.cgi?id=480960
Bug ID: 480960
Summary: Adaptive Sync screen may freeze when multiple
display-related settings are changed at the same time
Classification: Plasma
Product: kwin
Version: 5.93.0
Platform: Arch Linux
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: wayland-generic
Assignee: kwin-bugs-n...@kde.org
Reporter: chermnykh2...@gmail.com
Target Milestone: ---
Created attachment 165619
--> https://bugs.kde.org/attachment.cgi?id=165619&action=edit
configurationg change script
SUMMARY
I have the following setup:
2 screens, fractional scaling 150%, the bottom one has adaptive sync (see the
screen configuration screenshot)
I use zsh aliases to change between day/night mode
STEPS TO REPRODUCE
1. Configure an adaptive sync screen to have "adaptive sync: always"
2. Open a terminal and move it and the mouse cursor to the adaptive sync screen
3. Run the attached script which:
- Changes the wallpaper
- Changes the screen backlight level
- Changes the color temperature
- Changes the cursor theme & color scheme
OBSERVED RESULT
The Adaptive Sync screen freezes
EXPECTED RESULT
The screen should not freeze
SOFTWARE/OS VERSIONS
Operating System: Arch Linux
KDE Plasma Version: 5.93.0
KDE Frameworks Version: 5.249.0
Qt Version: 6.7.0
Kernel Version: 6.7.3-zen1-2-zen (64-bit)
Graphics Platform: Wayland
Processors: 16 × AMD Ryzen 7 5800H with Radeon Graphics
Memory: 23.1 GiB of RAM
Graphics Processor: NVIDIA GeForce RTX 3050 Ti Laptop GPU/PCIe/SSE2
ADDITIONAL INFORMATION
Setting 'adaptive sync' to 'Never' or running the actions sequentially works as
a workaround
ADDITIONAL ENVVARS
# workaround for nvidia+amd hybrid setup lags
export OGL_DEDICATED_HW_STATE_PER_CONTEXT=ENABLE_ROBUST
# workaround for cursor not respecting night color
export KWIN_FORCE_SW_CURSOR=1
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