Troubles with ACPI on HP nx5000 laptop

[Dmitry Kondratyev]

Nate Lawson wrote:

>> Monday, November 8, 2004, 8:19:04 PM, you wrote:
>>  >>>> DK>>       After  enabling ACPI on HP nx5000 my laptop (Pentium 
>> Mobile 1.7M
>>  >>>> DK>>       Dothan) hangs when compiling programs. dmesg, sysctl 
>> hw.acpi and
>>  >>>> DK>>       acpidump -t -d output are in attach. Disabling ACPI 
>> helps.
>>  >>>>
>>  >>>> DK> oops, attach was filtered somewhere. You can get it here:
>>  >>>> DK> http://bikeman.ru/HPnx5000.tgz
>>  >>>>
>>  >>>> The problem is in acpi thermal module. I set hw.acpi.verbose to 
>> 1 in
>>  >>>> /boot/loader.conf and noted that my laptop hangs when it changes
>>  >>>> cooling level too often. If i set hw.acpi.thermal.tz0.active to 
>> 0 for
>>  >>>> active cooling or disable thermal module via loader.conf.
>>  >>>>
>>  >>>> Btw, when I pull out power cord, my laptop also hang after 
>> trying to
>>  >>>> change power profile.
>>  >>>>
>>  >>>> In both cases it doesn't really hangs, it still react to alt-fn, 
>> enter
>>  >>>> and power button. After pressing power I get "acpi: suspend request
>>  >>>> ignored (not ready yet)".
>>
>>
>> NL> Thanks for the update.  I need some more information to narrow 
>> down the
>> NL> problem.  Does it hang the very first time it switches cooling 
>> levels or
>> NL> after multiple switches?
>>
>>     I tested it all again just a few minutes ago, it hung after first
>>     try to switch.
> 
> 
> HP (Compaq) ASL is intentionally obfuscated.  This makes it a pain to 
> debug.  I've noticed a lot of suspicious things.  First of all, make 
> sure you're running the newest BIOS available.  If that doesn't fix 
> this, try setting this tunable at the loader prompt:
> 
> set hw.acpi.serialize_methods=1

I'm running the last available BIOS from hp.
hw.acpi.serialize_methods has no effect for me. :-(

I've made photos of ps from ddb, you can get it from 
http://bikeman.ru/hpnx5000hang.tgz
Believe it helps...