https://bugs.kde.org/show_bug.cgi?id=486152
Bug ID: 486152
Summary: kwin lags under llvmpipe (software rendering).
Classification: Plasma
Product: kwin
Version: 5.27.11
Platform: unspecified
OS: Other
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: kwin-bugs-n...@kde.org
Reporter: oru...@protonmail.com
Target Milestone: ---
- install Opensuse 15.6 inside virtualbox. set memory to 2 GB, core count to 4
(core count probably not so important), do not enable 3d acceleration (it's
freezes desktop but I'm not sure it's kwin fault)
- open dolphin, move window (everything is ok for now)
- open firefox open 5-10 tabs with youtube videos ()
- move dolphin window
- enjoy slideshow
- close firefox
- move dolphin window (same slideshow)
- wait
- move dolphin window (same slideshow)
- once kwin got into slideshow mode there is no turning back
- not sure but this could be reproduced on any distro.
- KWIN_COMPOSE=N kwin_x11 --replace does not help (I tested X and O2 they does
not help either)
OpenGL vendor string: Mesa
OpenGL renderer string: llvmpipe (LLVM 17.0.6, 256 bits)
OpenGL version string: 4.5 (Compatibility Profile) Mesa 23.3.4
OpenGL shading language version string: 4.50
Driver: LLVMpipe
GPU class: Unknown
OpenGL version: 4.5
GLSL version: 4.50
Mesa version: 23.3.4
X server version: 1.21.1
Linux kernel version: 6.4
Requires strict binding: yes
GLSL shaders: yes
Texture NPOT support: yes
Virtual Machine: no
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