PowerBook G4 Lid Closed Mode
PowerBook G4 Lid Closed Mode
- Subject: PowerBook G4 Lid Closed Mode
- From: Jacob Shaw <email@hidden>
- Date: Fri, 19 Apr 2002 10:17:22 -0700
Hi folks,
If this is off-topic, kindly let me know. This is a question about OS X, but
it appears the answer lies in the Darwin portions of the OS :-)
As of OS X 10.1.3, there is a well-known bug where PBG4 (just 667?) users
cannot use an external monitor with the lid closed. This worked in 10.1.2
and below, and is listed as a feature in the PBG4 manual (pgs. 53 & 97).
I've been told it's due to a defective heat issue.
As a UNIX administrator, I'd love to keep current on OS versions, whilst
still being able to use just the external monitor with the lid closed
(1154x768 is too small, and using dual displays is too slow under current
versions). I work in a climate-controlled server room (eg. COLD) and plan to
keep an eye on temperature.
So until Apple recalls TiBooks, or implements the functionality again, I'd
like to do some playing around with the internals and see if I can come up
with a short-term patch. I have a test TiBook to play around with and render
unbootable :-).
My questions:
1.) I looked back in the DARWIN-KERNEL archives, and saw some posts by David
Hazelback and others, and his issue was very similar. Whatever came of that?
2.) I'm mostly in a familiarization phase right now. Which areas would I
want to focus in? From what I can see, what I am looking for is probably in
a KEXT somewhere (perhaps AppleHeathrow?)
Thanks in advance, for any constructive help!
Jacob
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