https://bugs.kde.org/show_bug.cgi?id=506288
--- Comment #19 from Denis Reva <denis7...@gmail.com> --- I added nvidia-drm.modeset=1 to kernel commandline. Nothing changed. I have also unmasked matrox mgag200 to test if it works. The log become even more hilarious: No backend specified, automatically choosing drm kwin_core: Failed to activate /org/freedesktop/login1/session/_35 session. Maybe another compositor is running? kwin_wayland_drm: failed to open drm device at "/dev/dri/card0" kwin_wayland_drm: failed to open drm device at "/dev/dri/card1" kwin_wayland_drm: failed to open drm device at "/dev/dri/card2" kwin_wayland_drm: No suitable DRM devices have been found No backend specified, automatically choosing drm... (loop) -- You are receiving this mail because: You are watching all bug changes.