This sounds a lot like a lot like a GPU freeze. Could you check https://wiki.ubuntu.com/X/Troubleshooting/Freeze and if you agree, please provide a batchbuffer dump as described there.
** Summary changed: - karmic: INFO: task i915/* blocked for more than 120 seconds. + [i945G] karmic: INFO: task i915/* blocked for more than 120 seconds. ** Tags added: 945 freeze karmic ** Tags added: 945g ** Tags removed: 945 -- [i945G] karmic: INFO: task i915/* blocked for more than 120 seconds. https://bugs.launchpad.net/bugs/451518 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xserver-xorg-video-intel in ubuntu. _______________________________________________ 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