[ltp] Re: [PATCH] In-kernel automatic fan control

[honey]

I keep posting.  Sorry.  Having read up that ibm_acpi 12a is
included in 2.6.14 (I'm not there yet), I wanted to point out that
the "full-speed" patch I mentioned in the last post sets the fan on
a significantly higher speed than the documented "maximum" speed of
mode 7, testing on my T40:

On Wed, 30 Nov 2005, Shem Multinymous wrote:

> echo 0x2F 0x00 > /proc/acpi/ibm/ecdump   # fan off
> echo 0x2F 0x01 > /proc/acpi/ibm/ecdump   # fan at low speed
> echo 0x2F 0x04 > /proc/acpi/ibm/ecdump   # fan at medium speed
> echo 0x2F 0x07 > /proc/acpi/ibm/ecdump   # fan at high speed
> echo 0x2F 0x80 > /proc/acpi/ibm/ecdump   # back to automatic speed

echo 0x2F 0x07 > /proc/acpi/ibm/ecdump
- 4000 rpm
echo -n full-speed > /proc/acpi/ibm/fan
- 5500 rpm

The latter is very useful.  I wonder if someone could clarify where
these two patches stand, as I'd like "full-speed" to be available in
a consolidated ibm_acpi patch.  Especially useful for machines that,
as was mentioned yesterday, seem to have somewhat erratic temperature
probes and can overheat in extreme circumstances, which seems still
reasonable common on this list.

Honey