I have my early 2013 15" rMBP that is 2 weeks old hooked up to my Samsung 27" monitor via DP to MDP connection and 50% of the time (literally 4/8 times) it will not wake from sleep and I have to hold down the power button to restart. I will double click a key on my Apple BT keyboard, the rMBP and monitor will "wake" from sleep but both show black screens. Even when I remove the USB hub, MDP, and mag safe it remains unresponsive. Same thing after I close the top and reopen. Ive already reset the PRAM, but not the SMC. Any suggestions? This is frustrating the heck out of me. FYI I am running Mavericks after a clean install from an SD card.