The time of these issue suggests this occurred when we switched from 2.99.917 to 2.99.917+git20150808
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to xserver-xorg-video-intel in Ubuntu. https://bugs.launchpad.net/bugs/1502052 Title: /usr/bin/Xorg:6:_list_del:list_del:__kgem_retire_rq:__kgem_retire_requests_upto:kgem_bo_retire Status in xserver-xorg-video-intel package in Ubuntu: New Bug description: The Ubuntu Error Tracker has been receiving reports about a problem regarding xorg-server. This problem was most recently seen with version 2:1.17.2-1ubuntu9, the problem page at https://errors.ubuntu.com/problem/863bb96dddcb2c6f4e182b78506b67ce83d83b26 contains more details. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1502052/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp