Re: fans not working after suspend to disk on nc-4000 and nc-8000

[Pavel Machek <pavel-+ZI9xUNit7I@public.gmane.org>]

Hi!

> On the nc-4000 and nc-8000 notebooks, there's a problem with the fan
> control after a resume from hiberantion.  This is a long standing
> problem with an otherwise perfectly working hibernation.  Tried with
> 2.6.10 to 2.6.13, and with suspend to disk and swsusp2.
> 
> After resume the fans are not switched on (or off) based on
> temperature.  This is pretty dangerous, and makes hibernation
> basically unusable for me.

acpi=off should solve it, too :-).


> Unloading the ACPI modules before suspend, and reloding them after
> resume doesn't help.
> 
> Setting /proc/acpi/thermal_zone/TZ1/polling_frequency to some
> value after resume _sometimes_ helps, but not reliably.

Does echo 0/3 > /proc/acpi/fan/*/state still work after resume? Is kacpid looping
after resume? Is /proc/a*/thermal*/*/temperature still showing
believable values?
Does passive cooling work for you? Can you send me your trip_points?

				Pavel
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