Macbook Sleep Indicator LED Behavior

My macbook doesn't have that light on when the computer is awake (on either battery or mains power). I've had to look at it to check that it really is sleeping, though. Depends on how bright the light in the room / outdoors is...

 

Mine is also switched off when it's on (the light, that is), so it sounds like it's behaving normally.

Have you tried checking for the sleep pulse in a darkened room? It's much easier to see than in daylight.

 

I'm sorry, I have no idea...

 

Normally, the LED is only lit (and pulsing) when your system is sleeping, otherwise it's off. You can try resetting the PRAM too! But first, shut down or restart the system.


On powerup, press and hold the following keys until the second chime, then release.

Apple+Option+P+R

 

It should also be on steady in clamshell mode.

 

Same problem, wondering status?

Hello! I know it's been more than a year, but this thread is the only thing on Google that I could find that described my problem. I know the normal operation of the sleep indicator LED is to be off when the computer is on, and to pulsate distinctly when the computer is sleeping. However, like the original poster, my sleep indicator LED is on when the computer is on, and pulsates from bright to very bright when sleeping (rather than bright to faint). Mirrorchild, did you ever find out why your MacBook was doing what it was doing? Thank you!

By the way, my MacBook is the white, mid-2007, 2.16 GHz model.