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[Bug 239101] Fans do not (re)start on hp compaq nx6325 laptop
  • From: bugzilla_noreply@xxxxxxxxxx
  • Date: Sun, 11 Feb 2007 16:34:52 -0700 (MST)
  • Message-id: <20070211233452.21828FB8@xxxxxxxxxxxxxxxxxxxxxx>

------- Comment #8 from bernhard.bender@xxxxxx 2007-02-11 16:34 MST -------
I built and installed linux-2.6.20 with the following patches included:


I cloned the kernel config by copying if from /boot and using "make oldconfig"

The "ACPI bad state" problem seems fixed; at least the AC adapter is correctly
recognized which is wasn't with the original 10.2 kernel.

The fans do behave differently now:
It seem that the lowest level fan is alway active, regardless of temperature.
Before, the fan would be off completely.

With temperature going up, acpi -V shows

Thermal 1: active[2], 50.0 degrees C
Thermal 2: ok, 51.0 degrees C
Thermal 3: ok, 31.0 degrees C

But fans do not seem to follow, only Thermal 1: "active[3]" and "ok" seem to
produce any difference in fan state at /proc/acpi/fan/*/state, but no
noticeable difference in the fan's actual speed.

This is better than before, since the CPU seems to remain cooler, but not
perfect yet.

Any other patches I could try?
Note that I am not going thru suspend, just booting the machine.

BTW: I see a couple of "APIC error on CPU0: 40(40)" messages in the syslog for
both CPUs.

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