Almost sounds like a problem with the video driver. Can you cold boot w/o issues into safe mode?
I would try to uninstall the video driver (w/ driver cleaner) and either reinstall it or use an older, official driver and not the very latest.
____
Axel
I would try to uninstall the video driver (w/ driver cleaner) and either reinstall it or use an older, official driver and not the very latest.
____
Axel