I believe I experienced a very similar crash with KWin. It also ends in the same functions of i915_dri, so this issue is probably related to the intel driver-related stack. The crash occured after I stopped the Euphoria screensaver (just by moving mouse), right before the normal desktop should appear. KWin restarted automatically, however.
** Attachment added: "kwin-20110425-135507.kcrash" https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/733346/+attachment/2087821/+files/kwin-20110425-135507.kcrash -- You received this bug notification because you are a member of compiz packagers, which is subscribed to compiz in Ubuntu. https://bugs.launchpad.net/bugs/733346 Title: compiz crashed with SIGSEGV in i915_emit_state() _______________________________________________ Mailing list: https://launchpad.net/~compiz Post to : [email protected] Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp
