On Thu, 2009-01-08 at 17:37 +0200, Boris shtrasman wrote: > After awhile of use (few hours) the X becomes blank . > there is no ability to switch to other vts (1-5). does X crash (as you said in the Subject), or just show a blank screen? Can you still connect to the machine from the network? If yes, is the X server still running, and can you attach gdb to it and see what it's doing? Cheers, Julien