Since my bug has been marked as a dupe of this I'll copy some other info from there:
PC is an eMachines 370. Fan worked under previous versions of ubuntu, but no longer comes on under edgy. As well as this acpi reports bogus temperatures:
~$ cat /proc/acpi/thermal_zone/THRM/temperature
temperature: -267 C
~$ acpi -t
Thermal 1: passive , 4294967040.0 degrees C
Since my bug has been marked as a dupe of this I'll copy some other info from there:
PC is an eMachines 370. Fan worked under previous versions of ubuntu, but no longer comes on under edgy. As well as this acpi reports bogus temperatures:
~$ cat /proc/acpi/ thermal_ zone/THRM/ temperature
temperature: -267 C
~$ acpi -t
Thermal 1: passive , 4294967040.0 degrees C
bug 24308 and bug 54554 also seem similar