ibook running with lid closed

[ivc <ivc@x-pec.com>]

hi.
i got a ibook dual usb 500mhz and i try to make it stay turned on while the
lid is closed (with the pmud -k option), but after exactly 4 minutes with
the lid closed it automatically shuts down.

i stopped pmud and pbbuttonsd and the same thing happened, so i think its
something to do with the kernel, maybe the via-pmu.c module.

someone mentioned it could be the graphic card, since pmud -k seems to work
on ibooks with ati radeon 16/32mb vram, but not on ati rage 8mb vram ibooks
and below..

ibook dual usb with 8mb vram:
http://www.apple-history.com/ibook_dual_usb.html

current ibook with 16/32mb vram:
http://www.apple.com/ibook/specs.html

look at the buttom of this site, there is some talk about the same problem:
http://www.swieskowski.net/code/wifi.php


This is a log snippet from pmud started with the command "pmud -ka":
Nov 20 23:35:21 pmud[268]: running /etc/power/pwrctl lid-closed battery
                **machine rebooted here around 23:39:21**
Nov 20 23:40:17 rpc.statd[285]: Version 1.0.2 Starting
Nov 20 23:40:17 pmud[288]: pmud [treshold = 420, margin = 15] started
Nov 20 23:40:17 pmud[288]: PMU version 12: iBook/G3 Pismo/G4 Titanium
Nov 20 23:40:17 pmud[288]: daemon stopped (parent exiting [note PID])
Nov 20 23:40:17 pmud[289]: running /etc/power/pwrctl minimum battery

This is a log snippet from pmud started with the command "pmud -a":
Nov 21 00:11:23 pmud[827]: running /etc/power/pwrctl lid-closed battery
Nov 21 00:11:23 pmud[827]: lid closed: request sleep
Nov 21 00:11:23 pmud[827]: running /etc/power/pwrctl sleep battery
Nov 21 00:11:23 pmud[827]: going to sleep
Nov 21 00:15:59 pmud[827]: system awake again
Nov 21 00:15:59 pmud[827]: running /etc/power/pwrctl wakeup battery
Nov 21 00:15:59 pmud[827]: running /etc/power/pwrctl lid-opened battery


any help is much appreciated
-ivc