I have a SFF Dell Optiplex 890 with a ATI Radeon HD 4550 with Display Port, I have a Display Port to HDMI cable to go into my HDMI on my TV but I can't get any sound, I tried to set the properties on the video card / control panel and I can't find any setting to change it. I am running Windows 7 Ultimate.
I know you should be able to change the setting on your output but I can't find any, maybe I need the ATI software to change the video card settings?? If so, not sure what the software is.
Thanks in advance for the help.