It sounds like the same weird bug that I had on that benchmarking thread, I got a black screen, console, menu, titlepic wasn't being showed, but the mouse icon was there, I could select things, and when I entered on the map I could see the menu and the console O_o...
The same bug didnt happened on intel gpu
EDIT:
 and, when you start the game and press the Fx button that you go back to titlepic, you can see the menu, title image and console...
 as requested, here's the logfile