Ever since I updated my PC, the 5.1 channel suuround sound no longer works. I only have the option for 2 channel audio. I'm using the digital optical out to my speakers. Any suggestions?
"Realtek Audio Control" provides the best audio experience with the Realtek Audio Codec. You can adjust audio device effects and all the audio device settings in this App.
apps.microsoft.com
Once you've done that, open it, go to top right gear icon, select playback device\Mute rear out........ and see if it helps