Subject: Laptop power management problems
To: None <port-i386@NetBSD.org>
From: Lukas Kaminski <kaminski@ikp.tu-darmstadt.de>
List: port-i386
Date: 11/10/2006 18:56:38
Hi!
>
>First of all i want to thank you for the beautiful OS you created!
>
>A=C2=A0couple=C2=A0of=C2=A0days=C2=A0ago=C2=A0i=C2=A0installed a daily-sna=
pshot of NetBSD-4 on my
>Toshiba Portege 3490ct.
>There are many things that worked out of the box (Sound, USB,
>=C2=A0Bluetooth), but some others required some work (wpa_supplicant and
>ralink wlan). All in all most of the the components are functioning
>very good.
>
>The only thing, which doesn't work properly is power management. There
>are a couple of problems:
>
>- The processor is detected as 500MHz and i can't set it to 700MHz.
>
>- The command
># sysctl -w machdep.speedstep_state=3D1
>leads to: "machdep.speedstep_state: 0 -> 1" .
>But=C2=A0if=C2=A0i=C2=A0check=C2=A0this,=C2=A0it=C2=A0appears=C2=A0to=C2=
=A0remain=C2=A00.=C2=A0
>
>- apm -z or apm -S leads to a system freeze. Only a hard-reset helps.
>
>- with the vald driver (ok, it is not exactly for Toshiba Portege, but
>it works partially) i can dim the backlight, but if i dim it too low,
>it goes off and i can't reactivate it. I have to reboot the laptop.
>I experienced the same behavior in linux. There i fixed the bug in a
>script, but i can't remember the exact cause (it was a simple one).
>
>- the acpi apm-emulation only sees one battery and tells me false
>values.
>
>- the fan-off button is mapped on Fn-F8 instead of Fn-F2 (at least in
>Windows it is Fn-F2)
>

>>Are=C2=A0there=C2=A0some=C2=A0debug-switches=C2=A0which=C2=A0i=C2=A0can=
=C2=A0use=C2=A0to=C2=A0provide=C2=A0some=C2=A0useful=C2=A0information?
>
>
>
>Bye
>
>Lukas Kaminski
>
>