Fixed a bug that prevented module signing from working correctly for the NVIDIA Unified Memory kernel module when using module signing keys generated by nvidia-installer.Fixed a bug that caused nvidia-installer to crash in environments where /proc is not mounted.According to the changlog, the new release only fixed below bugs: Nvidia-common is all that's left but the games still won't run (BIT.TRIP BEAT throws up a message saying ' Fatal Error - failed to create SDL window: Couldn't find matching GLX visual' but the rest do nothing when I click on the icons), the screen still flashes grey on login and I still have to scroll down the Unity bar.The latest proprietary driver Nvidia 331.79 for Linux has been announced. How can I uninstall a nvidia driver completely ? I tried a few more solutions but ultimately decided that the NVIDIA driver is more trouble than it's worth (I'll have to download the Windows version of Amnesia), so I tried to completely remove it and restore Nouveau using this method:

Later I tried again with a slightly more up to date NVIDIA driver (NVIDIA-Linux-x86_64-319.23.run), still with no success and with the same problems as before. So I gave up and left it as it was for a while and eventually I downloaded an update that somehow restored things to the way they were before (games worked again, Unity toolbar was back to normal and no more grey flash). Plus whenever I logged into Ubuntu the screen would flash grey for two seconds, which it didn't do before, and the Unity toolbar scrolls down instead of having the extra icons bunched together at the bottom. In the end I removed nf which fixed the resolution problem but Amnesia still didn't work and all my other games that previously worked fine would not even start up. I tried quite a few different solutions I found online involving xrandr and nf but they had no effect. However, the screen resolution was far too low. I installed the driver with a little help from this page: So, after having no luck using the Additional Drivers application, I downloaded the appropriate NVIDIA driver (NVIDIA-Linux-x86_64-310.32.run) from the NVIDIA website. Some months ago I installed Amnesia - The Dark Descent which uses 3D graphics and therefore refused to run using Nouveau.

Install nvidia drivers ubuntu 12.04