The regression was actually caused by mesa 7.9~git20100909 - reverting to 7.8.2-2ubuntu2 solved the 2D perf issues - I now get video playback fine. Reverting ia32-libs to the version generated before 7.9~git20100909 solved the Wine 3D performance.
** Package changed: xserver-xorg-video-intel (Ubuntu) => mesa (Ubuntu) ** Summary changed: - major 965GM 2D/3D performance regression in the last week in meerkat + major 965GM 2D/3D performance regression mesa 7.9~git20100909 -- major 965GM 2D/3D performance regression mesa 7.9~git20100909 https://bugs.launchpad.net/bugs/648868 You received this bug notification because you are a member of Ubuntu-X, which is subscribed to mesa 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