Same thing on my laptop with feisty herd 2. Fan don't work anymore. Laptop very hot where the cpu is located.
I have try with and without acpi=force and the result is the same. In lsmod asus_acpi seem loaded, but my laptop is not an asus. ** Attachment added: "dmesg output" http://librarian.launchpad.net/5774641/dmesg.txt -- acpi thermal_zone no more working https://launchpad.net/bugs/53381 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs