Random spontaneous X logout upon pressing enter key

**mvidberg** · January 11th, 2012

At some point in the last few months I started having a strange problem. I am currently on ubuntu 11.10 with nvidia GT520 video card. About once every hour or so as I'm working on my computer and I press the enter key (usually while typing something into firefox) my screen goes black and then I get forced logout from X-org. This is very annoying as it means anything I was working on that wasn't saved I just lost.

Any suggestions on what log file I should be looking in for clues to solve this?

**Pilot6** · January 11th, 2012

This is caused by Nvidia drivers. I installed 295. No problems so far.

**mvidberg** · January 12th, 2012

Originally Posted by Pilot6

This is caused by Nvidia drivers. I installed 295. No problems so far.

Where did you get 295? Going to the nvidia site, the latest they have for 64-bit Linux is 290.10.

**Pilot6** · January 12th, 2012

http://www.nvnews.net/vbulletin/show....php?p=2514702

**mvidberg** · January 25th, 2012

Thanks for the link but I should mention that the beta driver doesn't seem to work for me. After installing it X wouldn't start anymore.. the logs showed an error "Failed to initialize the NVIDIA kernel module".

I had to revert back to my previous settings (posting the method I used to revert in case anybody else has to do this).
Press CTRL-Alt-F2 to get to a shell login. Then do the following:
sudo sh /path/to/NVIDIA-Linux-x86_64-295.09.run --uninstall
sudo apt-get --purge remove nvidia-*
sudo apt-get install nvidia-current
reboot

**mvidberg** · February 26th, 2012

After eventually getting nvidia driver version 295.20 installed and working I thought the problem was fixed.

Ends up I am still experiencing it occasionally. Any other ideas on what could be causing this?

**THizzle7XU** · February 28th, 2012

I am also experiencing this as well on Ubuntu 11.10. I am running the latest 295 released Nvidia drivers. I usually experience it once soon after logging in for the first time. But not after that. I have auto-login enabled and I am using TwinView with two monitors with the same resolution if that helps at all. I also get the black screen after randomly hitting enter either in the terminal or Firefox, and I am logged out of my session and have to log back in. My card is an EVGA 570 GTX.

**LRY** · February 28th, 2012

Ubuntu 11.10 32-bit
Nvidia 295.20 drivers for 8400M GS card (laptop)

Confirmed. I'm not sure if pressing enter causes the random logouts, but once in a while (half to few hours) I'm logged out of X. For the time being, I've updated to the previous version (275.43) for my card.