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It's a very long shot, but do you think you could remove the RTC battery from the motherboard to completely wipe out all BIOS settings? I'd do it myself, but the batt is firmly attached to the MB so removing it would mean ripping it off... My point is that I don't recall anything specific that could have made the fan behave so strangely. Even Win7 suffered from this issue when I had it installed. Perhaps the BIOS has gone crazy and somehow confuses the OS when it takes over the fan control? Of course I might be completely wrong about this...
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It seems risky to me. But thanks.
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I won't mark this as solved but I could find a workaround here:
http://forums.computers.toshiba-europe. … &tstart=-4
The procedure is to append acpi.power_nocheck=1 to the kernel boot line.
Apparently now the fan never stops but acpi is working so it is better than booting with acpi=off.
Toshiba laptops suck :-( the damn thing runs at high temperatures (69-72 C) and with high cpu loads it reaches 99 C.
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