Notebooks
Q: 30" ACD sometimes doesn't wake up
I have my 15" MBP w/RD plugged into my 30" Apple Cinema Display. The MBP stays closed.
Normally, when I leave it for half an hour or so, I'll come back, hit an arrow key or two to wake the MBP and the ACD comes to life. Often, it does not. I'll hit the on/off switch on the wide of the ACD and it'll stay off. I have to either open the MBP until the ACD wakes up, or unplug and re-plug the two connectors from the ACD to the MBP to make the ACD.
Any idea why this is happening and how I can remedy it?
Thanks in advance.
MacBook Pro with Retina display, OS X Yosemite (10.10.5)
Posted on Sep 19, 2015 10:34 AM