[ubuntu] Laptop Overheating in Karmic

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http://ubuntuforums.org – I think it started to happen ever since I installed the updates in Karmic including the new kernel ( now going back to kernel never really helps ) You can see the output here : nishant@ubuntu:/proc/acpi/thermal_zone/THRM$ cat * <setting not supported> <polling disabled> state: ok temperature: 85 C critical (S5): 98 C passive: 90 C: tc1=2 tc2=3 tsp=50 devices=CPU0 It always hover around 85 and if I really start any apps it shuts down . Windows is a lot cooler ( no puns intended ) . Can anyone tell me whats the root cause ? Rgds Nishant (Hardware)