Comment 106 for bug 1365695

I'm using nvidia-331 and it still does not work for me: I just get a blank screen instead of the usual login one. I still need to downgrade nvidia-common and ubuntu-driver-common to version 0.2.91.4 to be able to use any GUI. I'm on a Thinkpad T420s, using an nvidia GF119M [NVS 4200M] (rev a1).
Incidentally, now that I upgraded, even though I've purged everything I can think of and installed the "downgraded" drivers, I can't switch between the Intel and nvidia cards at all, just like this bug, which is supposedly fixed:
https://bugs.launchpad.net/ubuntu/+source/ubuntu-drivers-common/+bug/1310023