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How can I enable vsync in LXDE? Right now I have a lot of tearing when watching videos in the browser, while I don't notice this in videos played by mplayer.

I suspect that vsync is disabled, though I don't know how to check that, and there are no options in LXDE to enable it. I'm suspecting this is a LXDE-specific issue, as I am not experiencing any issues with KDE/Kubuntu.

My video card is Intel GMA HD.

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What graphics card/drivers are you using? And what output mode? (e.g. xv, vdpau, etc.) In case you're running Nvidia's closed source driver and using xv as video output mode, this is an Xv-setting in Nvidia's settings application. – gertvdijk Jan 2 at 11:23
Intel GMA HD, and the tearing is in videos played with the browser, not with a video player. But enabling vsync should be done with the X server, regardless of video card, shouldn't it? – satuon Jan 2 at 11:31
For Intel HD Graphics I agree, this should be configured in the Xorg configuration. Please be more specific on what player this is and if it is limited to just this one or a global failure of VSync. (HTML5/Adobe Flash/Mono-silverlight/VLC-plugin/Totem-plugin/Mplayer-plugin/Chrome-embedded-pe‌​pper-flash). And are you running a multi-monitor setup? – gertvdijk Jan 2 at 11:34
I should add that with KDE on kubuntu, there was no tearing, even with compositing disabled. As for multi-monitor setup, no, only 1 monitor. Thanks for taking interest, btw, this tearing has been annoying me ever since I installed LXDE. – satuon Jan 2 at 12:02

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