I'm seeing the same behavior on my notebook (same model) with a similar kernel (I'm running 2.6.20-16-generic).
I had my notebook running for about three weeks with no problems. Then I hibernated it and, after waking it up, it only ran for about two hours before powering down. It was so hot I could smell it cooking plastic. :)
After booting again, the fan came on full bore and had the temperature down in about ten minutes.
I'm seeing the same behavior on my notebook (same model) with a similar kernel (I'm running 2.6.20-16-generic).
I had my notebook running for about three weeks with no problems. Then I hibernated it and, after waking it up, it only ran for about two hours before powering down. It was so hot I could smell it cooking plastic. :)
After booting again, the fan came on full bore and had the temperature down in about ten minutes.
The problem never happens unless I hibernate.