https://bugs.kde.org/show_bug.cgi?id=413128

Vlad Zahorodnii <vlad.zahorod...@kde.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|REPORTED                    |RESOLVED
         Resolution|---                         |UPSTREAM

--- Comment #7 from Vlad Zahorodnii <vlad.zahorod...@kde.org> ---
Oh.. On a second look, it appears like OpenGL freeze protection kicked in.
That's why kwin crashed. It appears like kwin froze when calling
glXGetClientString()

                                                  #0  0x00007b752ffdbc45
pthread_cond_wait@@GLIBC_2.3.2 (libpthread.so.0)
                                                  #1  0x00007b7530d8783b n/a
(libxcb.so.1)
                                                  #2  0x00007b7530d88fef n/a
(libxcb.so.1)
                                                  #3  0x00007b7530d89162
xcb_wait_for_reply64 (libxcb.so.1)
                                                  #4  0x00007b752ef20269
_XReply (libX11.so.6)
                                                  #5  0x00007b752d551aa4 n/a
(libGLX.so.0)
                                                  #6  0x00007b752d551bfc n/a
(libGLX.so.0)
                                                  #7  0x00007b752d550708 n/a
(libGLX.so.0)
                                                  #8  0x00007b752d550c28 n/a
(libGLX.so.0)
                                                  #9  0x00007b752d54cab3
glXGetClientString (libGLX.so.0)
                                                  #10 0x00007b75280d7803 n/a
(libqxcb-glx-integration.so)
                                                  #11 0x00007b75280d8199 n/a
(libqxcb-glx-integration.so)
                                                  #12 0x00007b7529373310
_ZN4KWin21X11StandalonePlatform19createOpenGLBackendEv (KWinX11Platform.so)

In either case, it points to a faulty driver. It's also a quite old bug report
now. Either way, if the issue is still present, please report it to your
graphics driver developers.

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