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Close PowerBook lid without sleeping the machine Apps
Until last night, I thought the only way to run a Powerbook with the lid closed was the Apple-supported method of plugging in an external display, external keyboard, and external mouse. But now there's an application called Sleepless ($5 donationware) that actually keeps your computer running when you close the lid. I've tried it for a few minutes at a time; so far, it appears to work as advertised. The display turns off, but the computer does not.

***NOTE: Powerbooks are designed to be able to run with the lid closed, but iBooks are not; you risk overheating and destroying your iBook if you run this progam on it.

[robg adds: There's a long discussion on using laptops with the lid closed in this older hint about closed lids and external keyboards/monitors.]
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Close PowerBook lid without sleeping the machine | 6 comments | Create New Account
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Close PowerBook lid without sleeping the machine
Authored by: guybrush on Mar 15, '04 06:42:03PM

Is it really true that powerbooks are designed to work with the lid closed? if that's the case i will definatly will try this app.



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Close PowerBook lid without sleeping the machine
Authored by: clam2000 on Mar 15, '04 08:16:06PM
This isn't the full story, there are some aditonal important things to know
Sleepless uses the kernel extension developed origionally for kismac (with permission) this extension was developed under 10.2 and doesn't work fully under 10.3

when sleep mode is disabled it won't sleep when the lid is closed, which is what you want, the problem comes after 4 minutes when the new power management system under 10.3 will shut down the computer.

and yes, powerbooks are meant to be able to run when closed, so that they can be used with an external monitor

want more details? try This

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Close PowerBook lid without sleeping the machine
Authored by: macinsoft on Mar 16, '04 02:46:53AM

Any 'book will be shut down if used with SleepLess or Insomnia.kext on BATTERY power after 4 minutes.
But it will NOT if used with power adapter plugged.



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Close PowerBook lid without sleeping the machine
Authored by: r0adrage on Mar 15, '04 08:23:34PM

Also mentioned in that thread is a kernel extension that does pretty much the same thing

http://www.binaervarianz.de/projekte/programmieren/meltmac/

I really doubt there is a problem with running your powerbook closed. They work just fine closed with an external monitor and keyboard attached.



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Close PowerBook lid without sleeping the machine
Authored by: clam2000 on Mar 15, '04 10:53:09PM

just as a note, if you look inside sleepless you'll find that he's using the same "insomnia.kext" (from what I know of the situation he did get permission)

so it is the exact same implementation



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Close PowerBook lid without sleeping the machine
Authored by: glusk on Mar 17, '04 11:11:00AM

You can use a PowerBook lid-closed by just simulating a monitor. This can be done with the VGA dongle and a VGA terminator (the geeks in the audio/visual industry know where to get these). You can also use a 75-ohm terminator on the s-video connector. These can be found at a parts store with a BNC connector. A BNC-RCA adaptor will connect this to the s-video dongle and is smaller and simpler than it sounds.

Now that the PB thinks it has an external monitor attached, how to power it up? On all the PBs I've tried, while the PB is off press the power button and close the lid immediately.

I keep the video dongle w/terminator in my kit for the occasion to network the PB to another machine to share files. I once left my old Lombard running as a small server for weeks without a problem.



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