Air Not "Remembering" Screen Brightness?

$MacUser$

macrumors 6502
Original poster
Mar 27, 2005
330
22
Los Angeles
I'm a little annoyed by the fact that my Air won't "remember" the brightness I set for the screen. This is especially important for running on battery power, and in general for the longevity of the panel.

I jump into work and forget to bump it down. Without fail it always reverts to 100% brightness by default. What's up with that? I do shut down from time to time to preserve standby power and occasionally plug in an external monitor...would this be "erasing" my brightness settings?

Just sleeping and waking doesn't seem to have an impact.
 

KylePowers

macrumors 68000
Mar 5, 2011
1,688
196
Well, unless you changed anything, it should change depending on your surroundings. If it's bright, it'll kick up the brightness. If it's dark, the screen should dim. But if you don't like it doing that, you can just go to System Preferences -> Displays and disable 'Automatically adjust brightness'

Unless this is what you've already done and it's not remembering it?
 

$MacUser$

macrumors 6502
Original poster
Mar 27, 2005
330
22
Los Angeles
Well, unless you changed anything, it should change depending on your surroundings. If it's bright, it'll kick up the brightness. If it's dark, the screen should dim. But if you don't like it doing that, you can just go to System Preferences -> Displays and disable 'Automatically adjust brightness'

Unless this is what you've already done and it's not remembering it?
I always disable automatic right out of the box, and it's still disabled. I know just sleeping and waking won't impact the brightness setting, just from working on it now. So I don't know whether going to and from A/C, to and from external, or shutting down (or some combination of these), is causing the computer to forget the "off AC" brightness setting.

Really annoying...it's easy to forget, especially in a bright environment, and there goes my battery power...
 

onthecouchagain

macrumors 604
Mar 29, 2011
7,380
1
Same thing happens to me. I too find it obnoxious that it changes it every time I plug/unplug charger.
 

0000757

macrumors 68040
Dec 16, 2011
3,893
842
I always disable automatic right out of the box, and it's still disabled. I know just sleeping and waking won't impact the brightness setting, just from working on it now. So I don't know whether going to and from A/C, to and from external, or shutting down (or some combination of these), is causing the computer to forget the "off AC" brightness setting.

Really annoying...it's easy to forget, especially in a bright environment, and there goes my battery power...
Same thing happens to me. I too find it obnoxious that it changes it every time I plug/unplug charger.
Make sure that the "Slightly dim the display...." option under "Energy Saver - Battery" is turned off.

 

$MacUser$

macrumors 6502
Original poster
Mar 27, 2005
330
22
Los Angeles
Make sure that the "Slightly dim the display...." option under "Energy Saver - Battery" is turned off.

Image
Already have that taken care of. I think it's an issue whereby plugging in to an external monitor and running clamshell resets the built-in screen brightness.
 

0000757

macrumors 68040
Dec 16, 2011
3,893
842
Already have that taken care of. I think it's an issue whereby plugging in to an external monitor and running clamshell resets the built-in screen brightness.
Did you also uncheck the option underneath it?