Comment 29 for bug 953205

This problem locked up my screen and keyboard on my Acer 7739-6830 while running Minecraft 1.2.4 this morning. Other apps have been running when this lockup occurred: Firefox 11.0, Chromium-Browser, and a couple other apps, so the problem seems to be app independent.

There is a similar bug report here: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/636045
which is related to this problem and has been around since August of 2010.
dmesg | grep 'intel ips'
[ 22.342927] intel ips 0000:00:1f.6: CPU TDP doesn't match expected value (found 25, expected 29)
[ 22.343191] intel ips 0000:00:1f.6: PCI INT A -> GSI 21 (level, low) -> IRQ 21
[ 22.347192] intel ips 0000:00:1f.6: IPS driver initialized, MCP temp limit 90