Solved! 5.1 Surround Sound no audio playing on PC

[cannond1396]

After doing a bit of research, I went ahead to buy myself an RCA to 3.5mm adapter for my speakers. Connected my 2 RCA to 3.5mm on the back of my PC.

I connected my FL and FR to LINE OUT.
My CEN and SW to C/SUB.
And my SL and SR to REAR.

With this built in amplifier in my subwoofer, I have set my speakers to AUX for Auxiliary and have it set it a 5.1 channel system on my speakers. Still would not play anything. No sound except for when my RCA is plugged into my L and R only for some reason and when testing it only rings left and right while every speakers is dead silent.

RCA to 3.5mm adapter

http://imgur.com/gnwFZqb

View: https/imgur.com/gnwFZqb

3.5mm to PC onboard audio channel

http://imgur.com/mzbOmQI

View: https/imgur.com/mzbOmQI

Speaker is set to AUX

http://imgur.com/kSQ6hyn

View: https/imgur.com/kSQ6hyn

Speaker is set to 5.1

http://imgur.com/6QkVWjO

View: https/imgur.com/6QkVWjO

Run some test

http://imgur.com/0BWDHE8

View: https/imgur.com/0BWDHE8

Test 2
https://imgur.com/31XCbQm

 

[helpstar]

try setting the auna to DVD instead of AUX

 

[helpstar]

try setting the auna to DVD instead of AUX

 

[cannond1396]

try setting the auna to DVD instead of AUX

Haha dude! Just before you replied to me this morning. I was on reddit last night discussing the same thing in /r/audio and I was thinking what if I switched from AUX to DVD and then you made this suggestion. Did the quick Realtek 5.1 tests. Boom it works! I feel so stupid now for not knowing the other audio option.

http://imgur.com/0BWDHE8

View: https/imgur.com/0BWDHE8