I am trying to connect my PC to my TV for streaming video. I have a DVI connector for my main monitor and a Mini DP to HDMI cable for my TV. Not sure if it matters but I bought the cable specifically for 4k res and sound but my PC doesn't detect it for sound. I've been searching and have found nothing. Is there some specific adapter that ATI requires to get sound?. I've never had this issue with my Nvidia cards......rather irritating considering the money I dropped on this.