This happens to me as well. Didn't happen at all the first few days, but has suddenly started happening all the time. Every 15-30 mins. Not sure if it's relevant but I've had no other program besides Chromium running when it's happened.
Attached my Xorg log ** Attachment added: "Xorg.0.log.old" https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/771655/+attachment/2110169/+files/Xorg.0.log.old -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/771655 Title: [i965gm] Xorg crash, randomly since ca. Apr 20 _______________________________________________ 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