I recently built a new PC running Ubuntu 12.04 with an Intel Core i5 3450 CPU and am using the built in Intel HD Graphics. Immediately after the installation, I noticed the desktop freezing completely at random times along with the following error message:
The system is running in low graphics mode. Your screen, graphics card, and input device settings could not be detected correctly. You will need to configure these yourself.
I tried troubleshooting this with some of the things I've read here but nothing has worked so far. I've already run a memory test from the GRUB menu and it reported no errors.
Thanks for any help.