Comment 24 for bug 1262068

Since a recent update on ubuntu-drivers-common and nvidia driver I am unable to select the NVIDIA GPU through nvidia-settings. When I try to do so, all I obtain is a blank dialog box with a forbidden sign and an 'OK' button.

Before this update I was using the packages provided by ppa:darkxst/gdm-prime.

Reading the comments above, I have edited the /etc/init/gpu-manager.conf file to add the 'or starting gdm' option but it did not change anything.

What can I do ?