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I made the mistake of installing the Nvidia Linux drivers direct from their website. It failed because it could not remove the nouveau driver.

Next I manually installed the nvidia drivers from the repository which successfully installed the nvidia driver, but the Ubuntu desktop does not function; no launcher, no menu bar, no windows. (Gnome seems to work though).

So I want to revert back to the vanilla installed nouveau driver. I tried

sudo stop lightdm
sudo apt-get purge nvidia*
sudo apt-get install xserver-xorg-video-nouveau
sudo rm /etc/X11/xorg.conf
sudo reboot

but lshw -c video reveals I still have one nvidia driver and one i915 driver. nouveau has not returned and the desktop will not function.

I am considering a complete reinstall, is there anything else to try?

I have followed the other threads with the same issues, but the solutions did not work

sudo dpkg-reconfigure xserver-xorg

Creates an error.

sudo apt-get install --reinstall xserver-xorg.core libgl1-mesa-glx

Did not make a difference.

cccm

Same.

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2 Answers 2

Had the same problem.

sudo apt-get install --reinstall xserver-xorg-core libgl1-mesa-glx

This actually fixed it. Ubuntu 13.10 x64 + nVidia 740M. Thank you very much!

You did not mention your GPU. If you've had that problem on a laptop, I'd suggest its because of the so-called "Fusion" system (which uses your integrated GPU in lieu of discrete one when you don't need it).

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This should be xserver-xorg-core I guess. –  MadMike Dec 18 '13 at 6:38

Be sure you remove all blacklist entries involving nouveau from /etc/modprobe.d as well.

Otherwise even if the system is configured to use it, it will not. I believe blacklist-local, and the nvidia backlists will be of primary concern.

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