Energy saver: do the battery settings apply during charging

chargedisplaypowerpower-managementsleep-wake

I have my Macbook pro 17 (early 2011, OSX 10.6.8) set to turn off the display at 30 minutes on AC, and 10 minutes on battery.

I've noticed recently that if the battery is charging (the little battery icon shows a lightning bolt and has a countdown timer to full charge) then the display goes to sleep at 10 minutes, even though it's plugged in.

Is this normal behavior? Is it configurable, aside from changing the battery settings to match the plugged in settings?

Best Answer

This sounds like a bug in the power management software and I cannot reproduce the issue with my current MacBook Air.

Have you been watching the power settings with the pmset command?

The -g log command might show you something to help debug why this is happening. Worst case, you can have a few tabs open in terminal and watch -g pslog and -g assertionslog to see if some program is somehow overriding the defaults that you have set.

These logs and the timings would also make for a good bug report if you determined that it was simply an error in programming on Apple's part.

Related Solutions

MacBook is sleeping despite being set to “never” sleep

It's working properly again. Got up this morning and computer remained awake for the entire night.

The only thing I did since last failure: I deleted the following file in the root Library, and re-entered my Energy Savings preferences.

/Library/Preferences/SystemConfiguration/com.apple.PowerManagement.plist

The Terminal now reports this for pmset -g. Note the difference on the first two lines. I guess the original settings were somehow corrupted.

MacBook:~ myusername$ pmset -g
Active Profiles:
Battery Power   -1
AC Power        -1*
Currently in use:
 lidwake    1
 autorestart    0
 halfdim    1
 sms        1
 hibernatefile  /var/vm/sleepimage
 disksleep  0
 sleep      0
 hibernatemode  3
 ttyskeepawake  1
 displaysleep   15
 acwake     0
 womp       0

MacBook Pro battery percentage jumping down and up

I do not know if your CoconutBattery is doing that but the numbers do not make sense at all.

Can you look under About this Mac -> More Info -> System report -> Power and get the battery numbers from there.

What you showing here is a old battery, that has already seen over half of its life but it shows only 86 load cycles--- which is not possible/correct.

In your case resetting the SMC might solve the problem.

Here is how to:

Intel-based Macs: Resetting the System Management Controller (SMC)

Best Answer

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MacBook is sleeping despite being set to “never” sleep

MacBook Pro battery percentage jumping down and up

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