I recently installed Ubuntu 14.04 and I installed Nvidia drivers from additional software. Everything was working fine. After a few days an update notifier came out to install kernel 3.13.0-24 (and bunch of other stuff) and suddenly when I try to login it gives me an error that it had to start in low graphics mode. Before that I saw a line that said "NVidia is tainting kernel" or something like that.
I went into recovery mode and purged all nvidia content (purge nvidia*) but now the resolution is 640*480 and I can't change it, also poor graphical performance.
It seems that the new kernel is somehow incompatible with any NVidia driver. I tried all other versions (337, 318, 310) but to no avail.
Anyone have any idea about this problem?