So i built a new computer today. I do not have a normal monitor. I'm using my TV as my display. 32" LED tv. I cannot get sound at all. When i go to control panel->sound->manage devices i see my video card there says something like AMD HDMI sound or something. but it doesn't have a green checkmark. I've been searchin all day and cant't find an answer. I'm using a Radeon HD6770 Says it supports sound. this is taken straight from their website for this card.
Integrated HD audio controller
Output protected high bit rate 7.1 channel surround sound over HDMI or DisplayPort with no additional cables required
Supports AC-3, AAC, Dolby TrueHD and DTS Master Audio formats
tried, didn't work. Even tried disableing everything and only leaving the AMD HDMI out enabled and still nothing. I checked to make sure the driver was installed and it is. says the device is working properly. But still no sound.