| Summary: | Plasma 6.1.90 KWin white screen on ancient Intel Atom | ||
|---|---|---|---|
| Product: | [Plasma] kwin | Reporter: | kalamajkamikmikmix |
| Component: | generic-crash | Assignee: | KWin default assignee <kwin-bugs-null> |
| Status: | RESOLVED FIXED | ||
| Severity: | normal | CC: | xaver.hugl |
| Priority: | NOR | ||
| Version First Reported In: | 6.1.90 | ||
| Target Milestone: | --- | ||
| Platform: | Arch Linux | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed/Implemented In: | ||
| Sentry Crash Report: | |||
| Attachments: |
systemctl log
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Created attachment 173698 [details]
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A possibly relevant merge request was started @ https://invent.kde.org/plasma/kwin/-/merge_requests/6389 The linked MR *might* help, but your logs also say
> "kwin_scene_opengl: Failed to link shader: \n \"error: Exceeded max nr indirect texture lookups (5/4)\\n\\x00\"\n"
which is weird, we only do up to 2 texture lookups explicitly. Might be something going wrong in Mesa.
At the same time, KWin should automatically fall back to software rendering when shaders don't compile, so this is pretty odd.
Git commit f9d8af036dd1a8eba36ddec203fc1fdf43206405 by Xaver Hugl. Committed on 16/09/2024 at 19:59. Pushed by zamundaaa into branch 'master'. opengl/colormanagement: remove float suffixes They're unnecessary and apparently don't compile on really old OpenGL M +6 -6 src/opengl/colormanagement.glsl https://invent.kde.org/plasma/kwin/-/commit/f9d8af036dd1a8eba36ddec203fc1fdf43206405 Git commit e2186eb838fba8640003020774a1e1052c2d92e9 by Xaver Hugl. Committed on 16/09/2024 at 19:59. Pushed by zamundaaa into branch 'master'. opengl/colormanagement: precompute to/from ictcp matrices Apparently constant expressions in GLSL aren't universally supported M +10 -6 src/opengl/colormanagement.glsl https://invent.kde.org/plasma/kwin/-/commit/e2186eb838fba8640003020774a1e1052c2d92e9 A possibly relevant merge request was started @ https://invent.kde.org/plasma/kwin/-/merge_requests/6392 Git commit edb4bc42ba5c0dcf9927a324c011447bbdfea700 by Xaver Hugl. Committed on 16/09/2024 at 20:12. Pushed by zamundaaa into branch 'Plasma/6.2'. opengl/colormanagement: precompute to/from ictcp matrices Apparently constant expressions in GLSL aren't universally supported (cherry picked from commit e2186eb838fba8640003020774a1e1052c2d92e9) M +10 -6 src/opengl/colormanagement.glsl https://invent.kde.org/plasma/kwin/-/commit/edb4bc42ba5c0dcf9927a324c011447bbdfea700 Git commit 95368896e6350496b65016ea583399ec8d870ea5 by Xaver Hugl. Committed on 16/09/2024 at 20:12. Pushed by zamundaaa into branch 'Plasma/6.2'. opengl/colormanagement: remove float suffixes They're unnecessary and apparently don't compile on really old OpenGL (cherry picked from commit f9d8af036dd1a8eba36ddec203fc1fdf43206405) M +6 -6 src/opengl/colormanagement.glsl https://invent.kde.org/plasma/kwin/-/commit/95368896e6350496b65016ea583399ec8d870ea5 (In reply to Zamundaaa from comment #5) > The linked MR *might* help, but your logs also say > > "kwin_scene_opengl: Failed to link shader: \n \"error: Exceeded max nr indirect texture lookups (5/4)\\n\\x00\"\n" > which is weird, we only do up to 2 texture lookups explicitly. Might be > something going wrong in Mesa. > > At the same time, KWin should automatically fall back to software rendering > when shaders don't compile, so this is pretty odd. Thank you, I was able to launch nested Wayland session (guess that is enough, the error message about texture lookup did not appear). On X11 got crash and this error: >kwin_scene_opengl: Failed to link shader: > "error: Exceeded 32 max uniforms and immediates.Exceeded 32 max uniforms and immediates.Exceeded 32 max uniforms and >immediates.Exceeded 32 max uniforms and immediates.Exceeded 32 max uniforms and immediates.Exceeded 32 max uniforms and >immediates.\x00" >kwin_scene_opengl: Creating the OpenGL rendering failed: "Could not initialize rendering context" but it does not give any hints about the value (nothing in logs). Tried downgrading Mesa from 24.2.2->24.1.5 ->on X11 still the same error. (Wayland still OK, some error from Mesa, KWin survived) I do not use X11 session and this is only test PC. Looks as another hw limit and given how bad the GPU is it is not worth the effort. |
Created attachment 173697 [details] systemctl log Updated KWin from version 6.1.5 to 6.1.90 -> on boot white rectangle (circa 16px) on black background, then the screen is completely white -> can not see SDDM gui or mouse. (downgrade KWin -> issue disappears, different PC with AMD Ryzen APU is OK) OS: EndeavourOS KDE Plasma Version: 6.1.90 KDE Frameworks Version: 6.5.0 Qt Version: 6.8.0 CPU: Intel Atom N570 Graphics Processor: llvmpipe (under X11 i915, iGPU is GMA 3150) Suspect weak GPU is the cause.