> Restarting of the xserver is not working. All what i can do is a reboot. > > I just updated all my xorg-dirvers, but it's a now use.
Are you using ati-drivers (fglrx)? Lately I've been having lots of troubles with x11-base/xorg-server-1.11.2-r2 / x11-drivers/ati-drivers-11.12 (blank, on boot, blank on resume, not able to play videos using xv video out, wrong aspect ratio with opengl....) So I downgraded to x11-base/xorg-server-1.10.4-r1 / x11-drivers/ati-drivers-11.8 and now everything runs smoothly again.
