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Open source patch for Wallstreet sleep battery usage System
Sleeping a WallStreet (Powerbook G3 Series 1998) and unplugging the system will drain battery fairly quickly. Also, it emits a small humming noise due to the fan continuing to run. An open source fix replaces the AppleHeathrow kernel extension (kext) with a slightly modified one which resolves this problem. A Mac OS X package file can be downloaded from my site. Other relevant links are also available at the same location.
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Open source patch for Wallstreet sleep battery usage | 6 comments | Create New Account
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This works great!
Authored by: cansas on May 03, '02 09:46:20AM

I've been using this for at least a month now. Before installing, my PB would drain to at least 65% over night (with two batteries in the bays). Now ,after the kernel extension, the battery total only decreases to 96-97% over night.

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Authored by: andrewgreer on May 03, '02 01:26:15PM

I've got a Lombard, which does not have a fan problem, as far as I can tell...and yet it drains enormously under sleep. Sounds like this is unrelated...but is there a possibility this patch would work for me? Bronze 333.

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why sleep?
Authored by: DavidRavenMoon on May 03, '02 06:43:07PM

If a draining battery is an issue, why put your Powerbook to sleep over night anyway? Just shut it down. Surely an extra minute in the morning to boot can't be that much of an issue! I think sleep was intended for short term usage.

Just my 2ยข :)

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why sleep?
Authored by: bhines on May 04, '02 08:57:01AM

Um, you think wrong. This is a bug. You should be able to sleep for a very very long time.

Your justification is silly. Users should be able to use their machines like they are intended.

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Sleep is a wonderful option...
Authored by: robg on May 04, '02 09:43:03AM

On machines where it works, it's great. I've left our iBook in sleep mode and unplugged for the better part of a week -- it only lost about 30% of its battery. Starting up takes longer, power cycles a bunch of components, and has no real benefit that I can think of other than avoiding this bug.

But the beauty of Darwin's open source roots is that someone was able to engineer a fix and release it on their own schedule, instead of waiting on Apple.


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Why didn't apple fix this?
Authored by: redwoodtree on May 10, '02 02:59:36AM

We've been complaining/commenting to apple about this since the fall of 2000 (the OS X Beta). Why in the world could they not fix this??

By the way, I shouldn't have to shut my computer down over night. In my line of work if I get paged on a priority one call at 3 am waiting for a 5 minute boot-up could be thousands of dollars.

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