This also happens for me on i965, r600 and radeonsi, especially when running a background window with moving pixels (something like GNOME System Monitor on the Graphs tab for instance). Enabling force_swap_buffers indeed seems to make the problem go away.
As part of the big bug review for 16.04 LTS I have tested this on 15.10 and the bug is still there. ** Tags added: desktop-bugscrub-triaged -- 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/1293243 Title: Compiz causes vertical tearing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/compiz/+bug/1293243/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~compiz Post to : compiz@lists.launchpad.net Unsubscribe : https://launchpad.net/~compiz More help : https://help.launchpad.net/ListHelp
