I've had my G751 for more than 4 months now, and for the first time ever, I had a black screen upon bootup after the ROG logo loading screen. There seems to be many threads regarding this black screen issue, but it only happened to me once. I had to force shut it, restart it and it hasn't happened again.
I probably shouldn't worry about it, but it still concerns me. Since it occurs upon bootup, is it fine to let my computer sleep when not in use from now on?
I let mine sleep during the night if Im not downloading or torrenting anything then turn it off if i travel or pack it up and go to a friends or something I havent had really any problems with this laptop its been amazing you nvida drivers might be causing the problem try and reinstall them see if that helps
I shut it down at least once every day. No issues.
About the black screen problem: make sure that you don't have a cell phone next to your computer on start-up. I've noticed this phenomenon with two different models of laptop while another didn't experience the issue at all. My guess is that some cases just shield radio emission better than others.