My session crashes very often

[Elvin85]

Hello.
I use Ubuntu 11.10 with default Unity interface. Last 15-20 days i often meet such problem: During working my session suddenly crashes and system logges out. I log in again then after 1-2 hours it happens again. After each crash i log in and open /var/log/syslog file and see same error in crash time:

Jan 6 21:35:41 elvin-Aspire-5741 gnome-session[24121]: Gdk-WARNING: gnome-session: Fatal IO error 11 (Resource temporarily unavailable) on X server :0.#012

So i think this error can say a lot about my problem. Is there any idea? My laptop RAM is 4GB, core is i5. So hardware is not bad.

[mquasar]

I'm having the same crash on a Dell Vostro, running Ubuntu 11.10.

Have searched around and haven't found much info on the problem. Could be related to graphics cards drivers apparently.

Any ideas?

[2F4U]

There exists a bug report on such an issue for Ubuntu 12.04.
https://bugs.launchpad.net/ubuntu/+source/fglrx-installer/+bug/937347

In the report they say it is due to the proprietary ATI driver.

What graphics card do you guys have and what graphics drivers do you use?