I switched OS to Ubuntu for about a week, LoL didn't run well in Ubuntu so I reinstalled windows 8. When i open playback devices all I have is NVIDIA HDMI Output (port 0) and (port 1), both of which show unplugged and disabled. I have disabled and disconnected devices set to show, but those are all that show. I have reinstalled drivers, reinstalled windows, downloaded Realtek, enabled onboard audio in BIOS, but nothing has fixed the problem so far. When I boot into Ubuntu via USB, the audio works fine.