I confirm that this affects my Compaq Evo n800v as well - polling was disabled. Running: $ sudo sh -c 'echo 5 > /proc/acpi/thermal_zone/TZ1/polling_frequency' enabled polling which seemed to cause the fan to ramp up properly. My dmesg output also contains: ACPI: Looking for DSDT ... not found!
I never noticed this problem on Dapper. This seems like quite a major and important bug (with the potential for hardware damage). -- laptop overheats when performing CPU intensive tasks. https://launchpad.net/bugs/22336 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
