Things I've tried:
- Run under classic or unity - Very bad tearing. Unredirect fullscreen has no effect unless decorators are killed, in which case it behaves the same as classic (no effects). - Run under classic (no effects) - One tear instead of multiple tears. The vertical position of the tear changes, sometimes it moves off the screen for a while but then comes back later. - Disable C1E in bios - C1E is known to cause timing issues (messes with HPET somehow). When C1E is enabled, the tearing is definitely worse. As I'm not concerned about the power saving, I left C1E off. - Disable other bios power management features - no effect. - Use "mplayer -rtc" - Similar effect to disabling C1E. - Different players - totem, vlc, mplayer, etc. All behave the same. - Proprietary driver vs nouveau - no difference. tried all vsync/vblank settings. - mplayer -vo gl2 (with proprietary driver) - tearing changes slightly, but is still present. - lowlatency kernel (https://launchpad.net/~abogani/+archive/ppa) - no difference. My conclusions: - Tearing effects both nouveau and proprietary drivers, all players, and both opengl and xv - None of the workarounds so far have solved it completely - Disabling C1E makes a significant improvement - Unredirect fullscreen doesn't work unless decorators are killed - classic (no effects) is also effected, although not as bad At this point my best guess is that it is either a kernel or xorg bug. -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to nvidia-graphics-drivers in Ubuntu. https://bugs.launchpad.net/bugs/600178 Title: Screen tearing when dragging window, in videos and other large screen redraws (on nVidia GPU) _______________________________________________ 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
