Comment 30 for bug 210780

George Lesica: your message appeared in the kernel log (dmesg) whereas the message reported in the first report is from the xorg log. I think that the message in the xorg log might vary between video drivers. The one in kernel log should be consistent.

I'm surprised that you have this problem with intrepid.

Have you tried my mtrr-uncover tool (see above)? You can run it with no risk as a regular user. Give it no arguments. It should print out useful information: what the mtrr's are, what it suggests they could be, and commands to make those changes.

Adding the output here would be informative.