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[kubuntu] kwin and nvidia tearing

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http://ubuntuforums.org – Hi everybody, this is my first post i have been struggling lately with tearing both on desktop and video. i had cured it a while ago but it popped up again with the latest kubuntu update to 12.04 64bit. this is my relevant setup: gtx 660 ti with 304.51 drivers, kwin 4.84, twinview set to clone between my main monitor and a hdtv (set to the main monitor resolution 1680x1050 but with refresh on auto). nv-settings has vsync enabled everywhere (on the main monitor) and kwin settings has vsync on too together with 2.0 shaders and unredirect full screen. As video player i have kmplayer and vlc bot (Hardware)