With my 1920x1200 resolution I hit this bug with only my primary laptop screen. It is still present in 12.10. It makes Ubuntu unusable, since unity-2d is not available anymore. I've ran into this bug consistently since a few years, never bothered to investigate, just switched to 2d. Now the best analysis I've found is by Adam Jackson: https://bugzilla.redhat.com/show_bug.cgi?id=699705#c6
** Bug watch added: Red Hat Bugzilla #699705 https://bugzilla.redhat.com/show_bug.cgi?id=699705 -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/977804 Title: Unity crashes when many windows are opened (intel_do_flush_locked failed: No space left on device) To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/977804/+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