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Rather than using Caffeine to keep MBP awake...

greytmom

greytmom

macrumors 68040
Original poster
Jun 23, 2010
3,626
1,087
Would just changing the settings to prevent sleep work?

I'm at work, and can't hook the new MBP up to our wireless (would be heavily frowned upon!) I'm charging now, and hoped to begin the next stage of calibration after it is charged. But I'm not going to be able to mess with it all day to keep it awake, or to download Caffeine.

So, would just changing the settings work? Or should I forget about that and wait until I get home to download Caffeine?
 
You can just change the settings to never sleep. Caffeine is useful for when you're doing stuff like using clamshell mode on battery.
 
Changing the settings on the computer wont keep it from sleeping. When it closes, it sleeps no matter what unless you have Caffeine. The only way to do this without a program is by hooking to power, mouse, keyboard and display and using in clamshell but then you cant accomplish what you need anyway.
 
Didn't think of the fact that I will need to close it (unless I plan to stay at work until the battery runs completely down. NOT going to happen!)

So, I guess I wait until I get home for the next step in calibration. Thank you!
 
You can allow it to sleep as part of the calibration. Just don't charge it up till it runs out on its own and has been asleep for at least 5 hours
 
alust2013 said:
You can just change the settings to never sleep. Caffeine is useful for when you're doing stuff like using clamshell mode on battery.
Click to expand...
Actually, Caffeine won't keep it awake with the lid closed, like InsomniaX will.
Mik3F said:
You can allow it to sleep as part of the calibration. Just don't charge it up till it runs out on its own and has been asleep for at least 5 hours
Click to expand...
If you let it sleep before it's drained, sleeping for 5 hours will only consume about 5% of the battery charge. It would take a very long time to fully drain the battery in sleep mode. Caffeine is useful for temporarily overriding your normal sleep settings for purposes such as calibration.
greytmom said:
Didn't think of the fact that I will need to close it (unless I plan to stay at work until the battery runs completely down. NOT going to happen!)

So, I guess I wait until I get home for the next step in calibration. Thank you!
Click to expand...
You could put a password-locked screensaver on your Mac and activate it before you leave, so it can stay awake while it drains, but still be somewhat inaccessible.

This should answer most, if not all, of your battery questions:
 
GGJstudios said:
Actually, Caffeine won't keep it awake with the lid closed, like InsomniaX will.

If you let it sleep before it's drained, sleeping for 5 hours will only consume about 5% of the battery charge. It would take a very long time to fully drain the battery in sleep mode. Caffeine is useful for temporarily overriding your normal sleep settings for purposes such as calibration.

You could put a password-locked screensaver on your Mac and activate it before you leave, so it can stay awake while it drains, but still be somewhat inaccessible.

This should answer most, if not all, of your battery questions:
Click to expand...

I should have worded my reply a bit better (that's what you get for rushing at work lol)

I should have put that allowing it to sleep whilst in calibration mode is OK, like taking it home to resume the calibration.
 
I decided to let a DVD play for a while this afternoon, before I head home. That ought to drain it some.
 
I found InsomniaX and Caffeine did not work at keeping the computer awake in clamshell mode.

I found an application called SleepLess which did work, however. $10 well worth it.
 
laser71 said:
I found InsomniaX and Caffeine did not work at keeping the computer awake in clamshell mode.

I found an application called SleepLess which did work, however. $10 well worth it.
Click to expand...
Caffeine never did keep a Mac awake with the lid closed. InsomniaX does, but I suspect it needs to be updated to make it work with the 2011 MBPs.
 
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