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How do I go back to the open source driver?

I installed AMD driver following on screen instructions but have a little shaded square in bottom right hand corner that says "AMD Unsupported hardware".

The Linux PDF says to use native package manager to uninstall driver, but I need to know what it is called to locate it.

Thanks.

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marked as duplicate by Mitch, Seth, Eric Carvalho, Jorge Castro, Basharat Sial Apr 29 '13 at 2:58

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1 Answer

up vote 3 down vote accepted

Here is the correct way to remove the ATI drivers:

sudo sh /usr/share/ati/fglrx-uninstall.sh
sudo apt-get remove --purge fglrx fglrx_* fglrx-amdcccle* fglrx-dev*

Note: ignore any errors you may have got form running the first 2 commands.

Remove your xorg.conf file

sudo rm /etc/X11/xorg.conf

Re-install xorg

sudo apt-get install --reinstall libgl1-mesa-glx:i386 libgl1-mesa-glx:amd64 libgl1-mesa-dri:i386 libgl1-mesa-dri:amd64 xserver-xorg-core

Configure xorg

sudo dpkg-reconfigure xserver-xorg

Reboot:

sudo reboot

Source form Install ATI official drivers in Ubuntu

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