(In reply to SinClaus from comment #129)
> At the morning screen is blank (screensaver), mouse move open desktop as a
> picture. SHIFT+Alt+F12 doesn't work, qdbus answers
> "Error: org.freedesktop.DBus.Error.NoReply
> Did not receive a reply. Possible causes include: the remote application did
> not send a reply, the message bus security policy blocked the reply, the
> reply timeout expired, or the network c
> onnection was broken."
That sounds as if the kwin_x11 process stalled, but if the screen is
locked, it's expectable that SHIFT+Alt+F12 doesn't work (all input is
grabbed by the screen locker which might be the troublemaker here)
==> does this also happen if you do *not* lock the screen with
suspending to ram??
If yes, check if kwin_x11 running and not just sigstopped ("ps ax | grep
kwin_x11" lists it with "TN" instead of "SN")
If it is, gdb into it to obtain a backtrace on the location where it's stalled.
Howto do that (using ssh is preferable, to not alter the inspected system by
changing to another VT)
https://community.kde.org/KWin/Debugging
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https://bugs.launchpad.net/bugs/1440210
Title:
KWin crashes multiple times a day and often has to be restarted
manually.
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