https://bugs.kde.org/show_bug.cgi?id=508308
Bug ID: 508308
Summary: [Bug] Direct Scanout not working on DGPU (Nvidia)
Classification: Plasma
Product: kwin
Version First 6.4.4
Reported In:
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: compositing
Assignee: [email protected]
Reporter: [email protected]
Target Milestone: ---
SUMMARY
Direct scanout not working when i render using DGPU (nvidia) but works if i
play the game with igpu.
Using Show Compositing Effect, and it doesn't go when i run the game using DGPU
I am not sure if it's nvidia bug or kde.
STEPS TO REPRODUCE
1. Run game in fullscreen using dgpu
2. Enable show compositing in Display Effects
3. Compositing still shows
While using IGPU (AMD) it doesn't show
OBSERVED RESULT
Showing compositing
EXPECTED RESULT
Should not show compositing, mean direct scanout working
SOFTWARE/OS VERSIONS
(available in the Info Center app, or by running `kinfo` in a terminal window)
pci id for fd 16: 10de:25a2, driver (null)
kmsro: driver missing
Operating System: CachyOS Linux
KDE Plasma Version: 6.4.4
KDE Frameworks Version: 6.17.0
Qt Version: 6.9.1
Kernel Version: 6.16.0-7-cachyos (64-bit)
Graphics Platform: Wayland
Processors: 12 × AMD Ryzen 5 6600H with Radeon Graphics
Memory: 64 GiB of RAM (62.0 GiB usable)
Graphics Processor 1: AMD Radeon 660M
Graphics Processor 2: NVIDIA GeForce RTX 3050 Laptop GPU
ADDITIONAL INFORMATION
https://imgur.com/a/jtwQtBJ
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