I've added the xorg-edgers PPA using sudo add-apt-repository ppa:xorg-edgers/ppa. Then I've tried different packages, all with the same problem. I'm currently using nvidia-331 as it's working almost perfectly.

The only problem that's left is that nvidia-settings is working perfectly when I'm using nVidia graphics, but as soon as I switch to Intel graphics (I'm on a notebook with nVidia Optimus) nvidia-settings won't open (it crashes instantly). Executing nvidia-settings in the terminal only gives me:

** Message: PRIME: Requires offloading

** Message: PRIME: is it supported? yes

Segmentation fault (core dumped)

I used the following commands to install nvidia-331:

sudo add-apt-repository ppa:xorg-edgers/ppa

sudo apt-get update

sudo apt-get --purge remove nvidia*

sudo apt-get --purge autoremove

sudo apt-get install nvidia-331

sudo apt-get upgrade

sudo apt-get dist-upgrade

I can't use the nVidia drivers in Ubuntu's repository as the performance is horrible on my Notebook. However, nvidia-settings never had those problems using Ubuntu's repository.

Update: seems to be a bug (LP #1214508). However, they claim all packages >= 319 are affected, but it was working just fine using nvidia-331 from Ubuntu's repository.