OK, I am still trying to figure out what triggers this bug. Now it happened when I was working with gnome-terminal and evince. I was not able to get a X backtrace according to https://wiki.ubuntu.com/X/Backtracing:
I have installed the debugging versions of xserver-xorg-core-dbg, libgl1 -mesa-dri-dbg and xserver-xorg-video-nouveau-dbg and rebooted. I tried $ sudo service apport start force_start=1 start: Job is already running: apport But apport doesn't report anything after logging back. I don't have another machine available to try the remote debugging. However, I tried to attach gdb to Xorg from text console, which just froze the system after entering "cont" in gdb. I didnt find any core dump in /etc/X11/core. The /var/crash doesnt contain relevant information either. There is also another problem related to this bug: After the first crash, the alt+ctrl+f1 stops working. The graphics output just switches off (monitor reports "no signal") instead of switching to text console. I need to reboot to make it work again. This makes the debugging a bit more difficult. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/999191 Title: X crashes with gnome-session: Fatal IO error 11 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/999191/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
