A kernel extension to disable 'sleep on close'

Mar 11, '05 09:57:00AM

Contributed by: jzdziarski

Looks like someone finally wrote a no-sleep extension that really works. Insomnia (GPL) appears to be a rewrite of the old OS 9 Insomnia extension for OS X. Combined with a couple commands shown on their front page, it provides a quick and easy way to prevent your PowerBook from sleeping with the lid closed.

robg cautions: There is kbase article on Apple's site that explains how to use a PowerBook with the lid closed, so this is apparently an OK thing to do. With that said, I know how hot the left-side of my 12" PowerBook G4's palm rest gets during use, and I know I wouldn't want all that heat going directly towards the LCD. So I'm not likely to use this trick, but it should be safe, based on Apple's kbase article. It basically just lets you used the PowerBook while closed, without requiring the external connections. Still, use at your own risk...

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Mac OS X Hints
http://hints.macworld.com/article.php?story=20050308172947974