Fixing the OS X Lion bluetooth pairing after sleep issue
Upgrading to Lion on my MacBook Pro was great. It was perhaps the easiest OS upgrade I’ve ever done thus far. While I generally like how it is, there are a few nagging issues with Lion that just irritated the heck out of me.
One of it is that when my MacBook wakes up from sleep mode, my bluetooth mouse would never get paired again without the need to turn the MacBook’s bluetooth module off and on. This was never the case with Snow Leopard! All I had to do the last time was to move the mouse a bit and Snow Leopard would immediately detect the mouse and pair it again.
After a few days of trying to fix it, and even by removing the existing pairing and re-pairing it again, I went back to turning bluetooth module off and on.
Then, I figured out what the issue was.
To fix this, just go to the Bluetooth preferences by right-clicking on the Bluetooth icon on the menu bar and selecting the “Open Bluetooth Preference…” option, or just search for it in System Preferences.
You should see the following screen.
Here, you should see your bluetooth mouse (or keyboard or any other bluetooth devices that you’ve paired with your Mac. Now hit on the Advanced… button at the bottom right.
Once the dialog box appears with all the options available, you just need to make sure that you check on the “Allow Bluetooth devices to wake this computer”. This allows any Bluetooth devices to wake your computer up after it’s slept.
And that’s it! While it works for me, do try it out and let me know if it works for you too.