Alright, thanks, I'll close it. Typically apport catches freezes and pops up a report dialog, so if the freezes come back it's best to just go ahead and file a new bug report that way.
So, sounds like your freeze may have fallen into category #4. Perhaps upgrading from .37 to .38 resolved it. ** Changed in: xserver-xorg-video-intel (Ubuntu) Status: Incomplete => Invalid -- 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/708998 Title: Desktop freezes intermitently _______________________________________________ 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