https://bugs.freedesktop.org/show_bug.cgi?id=88152
--- Comment #30 from Arthur Marsh arthur.marsh@internode.on.net --- Created attachment 113394 --> https://bugs.freedesktop.org/attachment.cgi?id=113394&action=edit 2015021218dmesg.txt - lockup of screen except for mouse, was able to restart kdm
For the first time when I experienced a lock-up due to running vlc with vdpau, although the desktop was locked up apart from the mouse cursor, I was able to control-alt-F1 and restart kdm successfully.
Using current Linus' git head.