Yes it will do even with a USB dongle but not all happen to be lucky as you as i encounter there are issue with some, after wakeup the Magic Mouse wont respond or you wont be able to wake ur Mac up with the bluetooth keyboard.
Well let me clearify my previous remarks a little. First I have a USB keyboard directly connected to my machine which is why I can wake the machine up by hitting a key. And also, maybe 15%-25% of the time it is indeed true that my MM
won't respond after waking up either. In those cases I need to flip the switch on the MM (or press the button on the trackpad a few times) to "get the dongle's attention" (so to speak), or as I like to think of it as saying "over here stupid"
Which exact dongle do you use?
I use a IOGear Bluetooth 2.1 USB Micro Adapter GBU421. I only got that particular one because they were on sale for $8 at Fry's last Christmas. I keep it plugged into the back of my ACD which means it's less than a foot or two from the mouse and trackpad.
Im also not too sure which dongle did he use as what i come across most dongle doesn't support wakeup even i did use a logitech one which mention support for Mac also dont work at the end i sold that mouse away and go for this solution.
I knew when I decided to use a USB dongle that the any BT device like the mouse wasn't going to be able to wake up the machine since the power is off the dongle while the machine sleeps.
On my 2009 the dongle I use does not reliably work without disconnecting the internal antenna. I've been searching the web a while ago, and this appeared to be the general experience with various dongles, including the D-Link Apple sold in the Apple Store. Did Apple finally change something on the 2010 to prevent this?
Well I did qualify my remark by saying the dongle takes precedence on
at least my late 2010 Mac Pro
But are you 100% sure about having to disconnect the antenna on the earlier models? I originally discovered that the dongle was taking precedence while I was playing around with Bluetooth Explorer because I was initiialy concerned who was going to receive the BT signal -- dongle or built-in. I think it was the "HCI Controller Selector" which shows the "Host Controller Selector" window. No other choice is given except the dongle when the dongle is plugged in.
Maybe on the earlier models there is a choice so perhaps you could select the dongle from there as an alternative to disconnecting the antenna (just thinking out loud here).
