Problem: Bluetooth in OS X Lion

Since the thread is hopelessly confused, note to gtmagnet.

You have not discovered a bug. Having the box you indicated checking solved your problem SHOULD be checked. That is the only way the Bluetooth module allows the computer to be "awakened" by a BT device. What you describe as a "bug" is the way OS X is designed.

Barry

Hi again - and hopefully the technician will find the problem.

As I indicated above, there is nothing wrong with your English - it is a LOT better than my Spanish or German which would be appropriate for a two year old! 😁

Barry

Barry:

I agree, the original poster needs to go to Apple and have his hardware checkedin. Resetting the SMC and PRAM and nonsense like that rarely do anything to help and in his case they certainly won't do anything if the Bluetooth module is not showing up as a USB device at all.

With regard to the other issue: yes, it IS A BUG. And my suggestion to turn ON that checkbox fixes it for many people on these threads, including this one, as well as this one:

https://discussions.apple.com/thread/3194188?answerId=15706179022#15706179022

The "Allow Devices to wake this computer" checkbox allows or prevents your devices from waking your computer from sleep and is defaulted to ON. But many people disable it because they don't want their MBPs waking while asleep due to accidental mouse clicks or keypresses. In Lion the checkbox works like it should while asleep, but upon wake there is a bug where the devices do not get properly reconnected like it normally should. This is a BUG, and is a pretty bad one since it renders your Bluetooth unusuable until you turn Bluetooth off and then on again from the menu extra or System Preferences. Note that it doesn't happen all the time or to all people, but universally checking that checkbox fixes this issue for those that it does occur to.

I'm sorry for jumping in this thread with diffrent problem. It was my mistake.

But one thing to make it clear is there is a problem that might be a bug in OSX Lion with bluetooth mouse recognition.

Barry, you misunderstood gtmagnet and my conversation. My problem was My Mac Book doesn't recognize magic mouse after wake up.

Checking the "Allow devices to wake this computer" checkbox in the Advanced panel of the Bluetooth prefs only makes my Mac Book recognize after wake up, not waking up sleeping Mac Book.

Is it normal? I and gtmanet think it's bug

And below is the thread about the problem.

https://discussions.apple.com/thread/3198529

My Computer is late 2009 Mac Book.

Hi everyone,

description: after waking MB (2008) from sleep under Lion 10.7.1, Bluetooth was completely 'gone'. It said 'bluetooth not activated' in the menu bar, and in the system preferences, nothing in reference to Bluetooth could be found anywhere. As if it had never existed.

Tried various tips, i.e. removing files from library/preferences (com.apple.bluetooth.plist) - no use. Also tried resetting PRAM - no use. What did the trick for me was resetting SMC (System Management Controller) by removing battery, holding down On/Off button for 5 seconds and then reassembling.

Hope it's of any use to y'all, losing bluetooth was frustrating. Glad SMC solved it.

Removing the com.apple.bluetooth.plist and restarting did the trick for me!

Thanks, Barry.

Thanks for the tip re turning bluetooth on and off - that fixed it for me. Now to get my facebook status updates to show (others can see them, but I can't) - but that's another thread..

Hi mates,

i have this problem too,

after i wake up my mbp from sleep the bluetooth was gone,

there is an icon in top bar os x that said "Bluetooth: not available"

and i checked in the system information, also i cant find bluetooth information,

for the first time i think this is os x lion bug or somthin,

so i restart my mbp and boot to bootcamp win7,

and also i cant find any bluetooth information there,

there is one unrecognized device in Device Manager win7,

and i think that is my bluetooth,

anyone can share your experience about this ?

im too lazy to go to apple centre 😝

Thanks

Hi mate.

I had a similar issue with bluetooth. I had my logic board replaced a while ago and never noticed my Bluetooth didn't work. I went to ifixit.com and got instructions to change the logic board and noticed that the Bluetooth connection was disconnected in the process. When the tech put it back together the connection wasn't properly secured.

I fixed it myself and it was easy. Clear concise instructions to lift the upper cover and a quick snap down.

Hope that helps