Revert back from NVIDIA drivers

[infestor]

i want to revert back to free drivers from nvidia drivers which i have installed currently (i run wheezy). i've been having problems with nvidia drivers. how do i go back to free drivers?

[cynwulf]

If you're running testing, this is fairly basic stuff which you should be able to do...

This will show you which packages are installed that match "nvidia".

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$ aptitude search ~invidia

Stop X and purge those packages - if you're lazy the following command should usually suffice for this:

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# aptitude purge ~nnvidia

Move xorg.conf to a backup file e.g.

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# mv /etc/X11/xorg.conf /etc/X11/nvidia.xorg.conf

Check whether nouveau xorg driver is installed

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$ aptitude search ~ixserver-xorg-video-nouveau

If it returns nothing, install it.

Ensure you haven't blacklisted nouveau in /etc/modprobe.d/blacklist.conf (no need for that anyway). Reboot and nouveau will be the display driver.