To answer your question, the bug is that your video card GPU locks up for some reason, probably due to an error in either the mesa gl driver for Intel, or the linux kernel drm intel graphics driver. IPEHR 0x7XXX type errors _typically_ are mesa bugs.
It is actually very good to hear you're able to reproduce this deliberately like that; it bodes well for upstream to be able to reproduce it. I will forward it to them. It would be especially helpful if you could boil down an exact set of steps you take to result in the lockup, as that will help Intel reproduce the issue on their end. -- 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/852812 Title: [gm45] GPU lockup render.IPEHR: 0x78080003 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/852812/+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