Was able to reproduce this issue with latest trusty kernel (3.13.0-17-generic), so marking it as confirmed.
** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Incomplete => In Progress ** Changed in: xserver-xorg-video-intel (Ubuntu) Importance: Low => High ** Changed in: xserver-xorg-video-intel (Ubuntu) Assignee: (unassigned) => Ricardo Salveti (rsalveti) -- 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/1239186 Title: [Lenovo ThinkPad X220] External screens shut off randomly To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1239186/+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