https://bugs.kde.org/show_bug.cgi?id=503070

Zamundaaa <xaver.h...@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REPORTED                    |RESOLVED
                 CC|                            |xaver.h...@gmail.com
         Resolution|---                         |UPSTREAM

--- Comment #3 from Zamundaaa <xaver.h...@gmail.com> ---
When it crashes, KWin gets automatically restarted by default. I don't know how
you configured your system to prevent that.

Even if it doesn't get restarted for some reason, you'll normally end up on the
login screen, with a fully functional system - there is no way for a crashed
process to keep drm master permissions, and the kernel and systemd both can and
do assign drm master to a different process whenever necessary.
If your system goes down bad enough that you can't even log in through ssh
though, then the problem definitely isn't KWin or even drm master permissions,
but something on a lower level - in my experience often a kernel bug is
responsible; a null pointer dereference caused exactly this for me before. You
can look into the logs (journalctl --boot -1) to figure out what the problem
really is.

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