Hello, I just a confirm the bug. On google groups i found a thread about the problem [1]. After i apply the patch [2] the problem is solved on my Host. [1] https://groups.google.com/forum/embed/#!topic/linux.debian.maint.x/ee7i6iVqT3c [2] https://cgit.freedesktop.org/xorg/xserver/commit/?id=21eda7464d0e13ac6558edaf6531c3d3251e05df Regards Martin