Felix Miata wrote: > host fi965 > 01:00.0 VGA compatible controller: Advanced Micro Devices, Inc. [AMD/ATI] > RV370 [Radeon X600/X600 SE] using radeon driver > F23 x86_64 freshly dnf upgraded from last same about 10 weeks ago (4.2.rc8 > kernel) > initial screen corruption eventually clears to black > plasmashell PID 1621/1667/1687 segmentation fault (11) > multi-user.target startup -> startx > IIRC, theme selected is whatever alternative to Breeze was found, likely > Oxygen If I un-disable compositing (set via xorg.conf*), crash notifier > never appears, and screen corruption remains until Ctrl-Alt-BS > .xsession-errors is not being written > no BRC bug on point less than 5 months touched last found That looks like broken OpenGL support in the driver. Trying the QT_XCB_USE_SOFTWARE_OPENGL workaround that was implemented for the drivers (like rv200) that don't do OpenGL 2 at all can't hurt. Of course it will be slower, but at least it shouldn't crash… (You can try editing /etc/X11/xinit/xinitrc.d/10-qt5-check-opengl2.sh to leave only these lines: QT_XCB_FORCE_SOFTWARE_OPENGL=1 export QT_XCB_FORCE_SOFTWARE_OPENGL to set the variable unconditionally.) Kevin Kofler _______________________________________________ kde mailing list kde@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/kde New to KDE4? - get help from http://userbase.kde.org