The cause is that replies end up being blocked by the synchronous pageflip used for the tear free update of the scanout. The solution is obvious, but just tricky to implement in an efficient manner that also solves the unnecessary readbacks. If I get it right the extra complexity should help for normal rendering as well.
-- 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/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/~compiz Post to : [email protected] Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp
