Disabling the desktop effects in KDE4 and setting the graphical effects to "High display and low CPU" seems to fix the problem for me at the moment. These must be triggering something in the Xserver which made it going into an inifinit loop.
Disabling the desktop effects in KDE4 and setting the graphical effects to "High display and low CPU" seems to fix the problem for me at the moment. These must be triggering something in the Xserver which made it going into an inifinit loop.