Chun-Yu, if you still have such problems in 12.04 then please log a new bug because this one won't get much attention since it's now Fix Released.
I assume you're using the intel graphics output on your i5? Please also try the workaround listed in the Bug Description at the top of this bug. And report your findings in a new bug. Thanks... -- 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/755841 Title: [sandybridge] Graphics tearing when playing video To manage notifications about this bug go to: https://bugs.launchpad.net/compiz-core/+bug/755841/+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