Before we talk about the advanced level of troubleshooting, let’s get a few things straight. First, Make sure your HDMI cable is not at fault. You can try it with another computer or another TV.
I actually experienced the exact same issue with my Windows 8 install on an ASRock CoreHT 252B Mini PC, which acts as my HTPC. Probably the same or similar as you, I'm outputting both video and audio ...
Some results have been hidden because they may be inaccessible to you
Show inaccessible results