Not sure what is the root cause but there seems to be a problem in the interaction between Nvidia driver and /usr/libexec/gdm-x-session. I couldn't say if it's originating from Nvidia proprietary driver or in the way Gnome talks to it... Here is an extract from the logs.
** Attachment added: "log" https://bugs.launchpad.net/ubuntu/+source/meta-gnome3/+bug/2066035/+attachment/5810209/+files/gnome_x_bug.txt -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/2066035 Title: KWM Switch causes logout To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/meta-gnome3/+bug/2066035/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
