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-X, which is subscribed to xorg in 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 _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp