PC to Receiver via HDMI question/Issue

i am using a computer hooked up in the same manner. well... technically i use a dvi-to-hdmi cable and i have it hooked up to my video card and not my motherboard but for all purposes here... its more or less the same thing. photos in my sig if you care.

first, you did right by running the receiver speaker setup. if in speaker test the left, right and sub work then you did this right.

i do not have windows 8.1 on my machine (i avoid it like the plague) so i can only give you instructions for windows 7 however hopefully you can use that to help you set things up correctly on your system. with that said... continue reading.

second, you will need to set up your windows audio. right click the sound icon in the notification area. click playback devices. make sure your receiver is set to the default audio device and click configure. i would suggest setting it to 5.1 (if 2.1 isnt an option). run speaker test. does it work now?

third, look in your video card and sound amd software bundle (catalyst) for any reference of audio out on the hdmi. see if it has any settings for 2.1 or 5.1 and change accordingly.

fourth, make sure your receiver is set to auto-surround. although i would like to note that with certain HTIB sets and perhaps a few receivers you need to use the PCM or DIRECT option to get things working right for some reason. i myself always use only two options: auto-surround 99% of the time or ext stereo when i want to play music across all speakers (it dupes the signal from the fronts to the rears).

i would also suggest then using a propper sound test to verify things are working. i highly suggest going here http/www.dolby.com/us/en/consumer/technology/home-theater/dolby-digital-plus-download.html and clicking on the channel check video. for windows i would use the TS option and open it with WMP. its a great test for verifying that channels are working and i have used it myself to can verify that it works perfectly.