CPU fan permenantly on. Toshiba L300. (squeeze/sid (2.6.30-2-686))

[James Clark <jamesc@jamesc.co.nz>]

I have a Toshiba laptop: Satellite L300, model PSLB8A-0FM004.

I was running Ubuntu (2.6.28-15-generic) with kernel option
acpi_osi="Linux".  This option would allow the fan to spin down when
not busy, without the option the fan would spin up and never spin
down.
  i.e. acpi_osi="Linux" would allow "normal" fan behaviour.

I migrated to Debian (squeeze/sid (2.6.30-2-686)).  The fan never
spins down.  I thought I would add acpi_osi="Linux" to see if that
would spin the fan down as it did with the previous (older) Ubuntu
Linux kernel.  The fan did not spin down.

Any advice would be greatly appreciated.

James