Troubles with ACPI on HP nx5000 laptop

[Nate Lawson]

Dmitry Kondratyev 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'll continue debugging this.

-- 
Nate