New MBP in clam shell, without power cable wont stay awake ...

[Nickb]

when connected to a screen...

i have the new MBP with the LED cinema display - and i just noticed something funny ... when i have the MBP in clam shell mode, power cable in, its ok, but when i remove the power cable, it goes to sleep - and i try wake it, but it soon goes back to sleep - anyone had this before, very odd??

 

[Solemony]

when connected to a screen...

i have the new MBP with the LED cinema display - and i just noticed something funny ... when i have the MBP in clam shell mode, power cable in, its ok, but when i remove the power cable, it goes to sleep - and i try wake it, but it soon goes back to sleep - anyone had this before, very odd??

Maybe it's faulty? Take it to an apple retailer store and have them look at it or even get a replacement.

 

[TheNightPhoenix]

Yup have that all the time, that normal behavior.

READ:
http://support.apple.com/kb/HT3131

 

[Eddyisgreat]

this happened in the previous revisions , too. Its a design thing, not a flaw.

 

[timothyandrew]

If you want it to stay on when it's closed, use InsomniaX.

 

[ghall]

I have a core duo MacBook Pro and it does the same thing, and the PowerBook I had before it; same thing. It's most definitely by design.

 

[drewsof07]

It was designed that way to save battery. If you're mobile running on battery power, most people won't need an external display. It makes sense for most users.

 

[Nickb]

thanks for your comments people - glad to know its not a fault and just how it is

one interesting comments i found is about the new MBP's heat when in clamshell mode, as mine gets pretty warm sometimes, and as i read in another post alot of the heat is channeled through they keyboard - so i was thinking how does this effect the screen? although i guess apple will have thought of this.

any thoughts?