SUMMARY *** Trying to use kwin_x11 this EGL (KWIN_OPENGL_INTERFACE=egl) I noticed that without QT_XCB_GL_INTEGRATION=xcb_egl kwin_x11 fails to activate compositing. So I added both env vars to script in ~/.config/plasma-workspace/env/ On reboot, kwin correctly activates compositing and egl, m plasmashell and krunner are suffering from continuous crashes. Konsole and yakuake also have problems: often opening them does not display the prompt and the two applications freeze. I therefore suspected that the problem was a general one related to transparencies, but using a decoration with transparency, kwin does not crash. Starting only kwin and not all plasma with those 2 variables, kwin has no stability problems and works correctly (compositing with EGL) *** Operating System: Manjaro Linux KDE Plasma Version: 5.26.5 KDE Frameworks Version: 5.101.0 Qt Version: 5.15.7 Kernel Version: 6.1.3-1-MANJARO (64-bit) Graphics Platform: X11 Processors: 8 × 11th Gen Intel® Core™ i5-1135G7 @ 2.40GHz Memory: 15.4 GiB of RAM Graphics Processor: Mesa Intel® Xe Graphics Manufacturer: Dell Inc. Product Name: Inspiron 5502
Fixed by https://gitlab.freedesktop.org/mesa/mesa/-/commit/b111e8aa4940e8b155f38b5ef238c295ded8a6b4
(In reply to Fushan Wen from comment #1) > Fixed by > https://gitlab.freedesktop.org/mesa/mesa/-/commit/ > b111e8aa4940e8b155f38b5ef238c295ded8a6b4 I compiled mesa with that patch and it seems to work. Thank you.