Hi, if I switch between more than one X session my Arch Linux is freezing earlier or later. I saw this before on the same system with Debian Jessie (Testing). Before Jessie the same system runs fine with Debian Wheezy where changing between X sessions where no problem, so I thought it has something to do with the new kernel and the proprietary nvidia driver, but i am not sure. After freeze the X server can not be killed with ctrl + alt + backspace and the Num Lock LED does not respond anymore. Yep its really ugly, only cold start helps in this situation. I need to test ssh because music plays onward. [dennis@rore ~]$ lspci | grep VGA 01:00.0 VGA compatible controller: NVIDIA Corporation GF114 [GeForce GTX 560 Ti] (rev a1) Will not upset anyone by pasting my complete Xlog into this mail so here is a link for it: http://www.pasteall.org/45056 Regards, Dennis