Kubuntu 14.10 prime breakage fix for #nvidia

I'm not currently running any Ubuntu-based distros, so this is all from memory and I apologize for errors, but that's all I can offer for guarantees. You undertake these steps at your own risk.



Find all the nvidia packages you have installed.

dpkg -l | grep -i nvidia

Dump this list to a file, for your reference later:

dpkg -l | grep -i nvidia > nvidia.packages.txt

except the package nvidia-common all other packages should be purged.

sudo apt-get remove --purge <packagename>

Once all the Nvidia packages are purged, you should be able to reboot and have Intel-only graphics.

You should be able to restore use of the Nvidia binary drivers by installing nvidia-current and nvidia-prime, these pull in the current Nvidia binary driver and the Ubuntu Optimus-handling scripts respectively.

Once things are working, you should be able to use the package list you dumped to a text file to restore any missing packages you want back, but most should have been pulled back in as dependencies already.