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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/953205 Title: System shuts down due to CPU temp exceeding critical thresh-hold (100C) To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/953205/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
