Hi everyone,
I've been using my MBP with my 20" Cinema Display pretty regularly.
I plug the DVI in, turn on the display from the side and turn it off on the side whenever I want to shut it off.
However, this morning, I tried using the 1 of the 2 USB plugs in the back to power a wired Mighty Mouse.
Now It seems I have no control over the on/off button on the side, and the display will never wake up unless I plug in one of the USB dongles from my display?
Is there any way to reverse this?
My on/off button literally does not work anymore