I'm possibly experiencing this bug, but I'm using the Nvidia proprietary driver, particularly the 367.57 version. I tried to switch the clocksource to acpi_pm, as suggested in some forums, but it doesn't help.
While that's EQ overflowing, I couldn't check anything but reboot. Attached is the Xorg.0.log.old file. ** Attachment added: "Xorg.0.log.old" https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1587730/+attachment/4808950/+files/Xorg.0.log.old ** Changed in: xorg (Ubuntu) Status: Expired => New -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1587730 Title: graphic system freezes after a while, can still ssh into machine To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1587730/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs