https://bugs.kde.org/show_bug.cgi?id=517608

            Bug ID: 517608
           Summary: Desktop freezes after login
    Classification: Plasma
           Product: kwin
      Version First 6.6.2
       Reported In:
          Platform: openSUSE
                OS: Linux
            Status: REPORTED
          Severity: crash
          Priority: NOR
         Component: wayland-generic
          Assignee: [email protected]
          Reporter: [email protected]
  Target Milestone: ---

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SUMMARY


STEPS TO REPRODUCE
1. OpenSUSE Slowroll Fresh install (made on March the 13th, 2026) on a laptop
with hybrid graphics setup (Intel iGPU + NVIDIA RTX 2070)
2. Installation of nvidia driver (nvidia-video-G06 580.142-46.1)
3. Login into the graphical interface (plasma-wayland)


OBSERVED RESULT
Within maximal 2 seconds the desktop interface freezes - the only way out is a
hard shutdown (the keyboard and the muse are unusable, so no possibility of
going to a virtual terminal or to leave/shutdown/logout properly) - this does
not happen on the same platform when plasma-x11 is used.

EXPECTED RESULT
A "normal" desktop behaviour (no freezing)

SOFTWARE/OS VERSIONS
Windows: 
macOS: 
(available in the Info Center app, or by running `kinfo` in a terminal window)
Linux/KDE Plasma: openSUSE Tumbleweed-Slowroll 20260302
KDE Plasma Version: 6.6.2 
KDE Frameworks Version: 6.23.0
Qt Version: 6.10.2
Kernel: 6.19.6-1-default
Graphics Platform: Wayland
Processors: 12 × Intel® Core™ i7-10750H CPU @ 2.60GHz
Memory: 16 Gio of RAM (15.5 Gio usable)
Graphics Processor 1: NVIDIA GeForce RTX 2070 with Max-Q Design
Graphics Processor 2: Intel® UHD Graphics

ADDITIONAL INFORMATION
While kwin_wayland is initializing the compositor the Wayland compositor fails
to create a framebuffer , which explains the freeze of the graphic stack.
Perhaps because KWin chooses the wrong device (NVIDIA drm)?
mar 14 21:43:45 localhost systemd[6263]: Starting KDE Wayland Compositor...
mar 14 21:43:45 localhost systemd[6263]: Started KDE Wayland Compositor.
mar 14 21:43:45 localhost kwin_wayland[6359]: No backend specified,
automatically choosing drm
...
mar 14 21:43:54 localhost kwin_wayland[6359]: 0x500: GL_INVALID_ENUM error
generated. Invalid <face>.
mar 14 21:43:54 localhost kwin_wayland[6359]: Invalid framebuffer status: 
"GL_FRAMEBUFFER_INCOMPLETE_MISSING_ATTACHMENT"

There seems to be a work out:
$ sudo nano /etc/profile.d/kwin_drm.sh
and adding this: export KWIN_DRM_DEVICES="/dev/dri/card0:/dev/dri/card1" (and
then save the file and reboot the system)

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