I'm running Ubuntu 14.04 on a laptop with an nVidia 850m. I installed proprietary drivers and bumblebee and everything worked fine for weeks. After running a dist-upgrade I have a black screen on boot.
I tried reconfiguring Xorg but I receive an error message
Missing output drivers. Configuration failed.
What could I do?
Remove everything to do with the Nvidia proprietary drivers:
sudo bash NVIDIA-Linux-x86_64-352.21.run --uninstal
Remove xserver settings:
sudo apt-get remove --purge xserver-xorg-video-nouveau xserver-xorg-video-nv
Reinstall the above (not proprietary):
sudo apt-get install nvidia-common
sudo apt-get install xserver-xorg-video-nouveau
sudo apt-get install --reinstall libgl1-mesa-glx libgl1-mesa-dri xserver-xorg-core
Reconfigure xserver:
sudo dpkg-reconfigure xserver-xorg
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