Here's a similar, older bug: https://bugzilla.redhat.com/show_bug.cgi?id=879801 , workarounds included there, see comments 13, 14, 15.
** Bug watch added: Red Hat Bugzilla #879801 https://bugzilla.redhat.com/show_bug.cgi?id=879801 -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1684010 Title: 17.04, i915 freeze on VGA compatible controller: Intel Corporation Xeon E3-1200 v2/3rd Gen Core processor Graphics Controller Status in linux package in Ubuntu: Confirmed Bug description: Just freezes all unity and/or X. Nothing in any logs though. 16.10 worked just fine. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1684010/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp