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Friday, September 6, 2013

How I fixed nvidia kepler video tearing in Ubuntu 12.04 Unity

Introduction


Here is  my previous rant on video tearing of GTX 650 card in linux

Tearing


With default nouveau driver in Ubuntu videos teared badly. After installing proprietary nvidia driver videos teared badly. 

I guess the reason of tearing is graphics card is way faster in delivering frames which monitor can't match to display. In technical terms it is called a sync issue or whatever. See Screen Tearing in Wikipedia to know more

The Fix

You should be running proprietary nvidia driver in linux, nouveau won't help

It is simple fix asking the window manager to request fullscreen repainting whenever some repaint is required. With KDE 4.11 this option is there.

In Unity this is done as follows in screenshots

Install Compiz settings


sudo apt-get install compizconfig-settings-manager


Search Compiz in unity dash



Launch Compiz and select Utility --> Workarounds


Tick "Force fullscreen redraws (buffer swap) on repaint"


By default vsync is enabled in nvidia-settings, if not enable it



Now reboot and enjoy (hopefully it works for you like it did for me)

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