On Dec 31, 2007, at 8:08 AM, "Jordan K. Hubbard" <email@hidden> wrote:
On Dec 31, 2007, at 7:59 AM, Brian Mastenbrook wrote:
On Dec 31, 2007, at 9:52 AM, Jordan K. Hubbard wrote:
On Dec 31, 2007, at 6:20 AM, David Alger wrote:
You wouldn't convince me of that unless you could show me
documentation, as Apple condones and tell everybody that they can
run with an external display and keyboard & have the lid closed.
You're talking to Apple people on this list, obviously, so if you
can point US to documentation which clearly states that "Apple
condones and tells everyone they can do this", I think we'd all
love to see it. Since you're asking for proof that it's not
condoned, I think it's only reasonable to ask you for proof in
turn that it is. :-)
"How to use your PowerBook G4, MacBook Pro or MacBook with the
Thanks much for the citation. Clearly, I'd never read that before,
and it represents an interesting collision between "conventional
wisdom" and "the documentation." I'd always heard, both inside and
outside of Apple, that running a mac laptop of almost any ilk with
the lid closed was a dicey proposition given the variances of heat
dissipation. Various "it happened to me!" pictures have been posted
on the web which show melted keyboards and the like (though we have,
of course, no absolutely clear notion of what has happened in these
cases). It's certainly been enough to put a lot of people off the
idea, which is probably where Terry was coming from (gah! I'm
defending Terry, that's never a good sign).
There's no contradiction here. The original question is about "how do
I write code that would thwart power and thermal management for
Running with the lid closed and an external monitor/projector and
keyboard+mouse is a fully supported configuration, so long as he
accepts that without adequate ventilation and cooling, he's subject to
thermal throttling. "Adequate" here translates to "must be better
with the lid closed than for the same performance with the lid open".
Most of the "cooked" machines I have seen -- I believe the most
spectacular one was Guido's IBM ThinkPad, before he learned how to
throttle it down and turn off the backlight under FreeBSD; Jordan can
correct me -- were not Macs.
They happened either because the OS software, like Linux or FreeBSD,
failed to implement thermal management at all, or the drivers that
were supposed to talk to them were bogus or missing, or someone
deliberately went out of their way to disable it (i.e.: someone
answered the question that was asked here, and a programmer took the
information and shot his foot off).
In other words, pilot error.
Now it's my general understanding that the question is being asked for
a much more specific reason, which has yet to be stated -- can the
original poster chime in with his reason here, please?!?
I can think of a number of legitimate and quasi-legitimate reasons for
wanting this, but unless he narrows the scope of the question, they
are unlikely to find themselves supported.
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