Trying to get a stereo mix with Realtek 7.1 HD card

[lambdoid]

I have 2 Yamaha HS8 speakers and want a basic stereo mix with my Realtek HD onboard sound. I did have it working previously, but one day I plugged in an XBox 360 controller into one of the USB slots, and all of a sudden both channels came through the left speaker.

I've tried reconfiguring the outputs using Realtek HD Audio Manager, but no matter what I do, the left channel comes out of the left and right speakers, and the bass channel comes out of my right speaker, but there is no right channel at all. I have set the stereo option, but surely there are only 2 possibilities in a stereo setup- left and right, yet the software keeps asking me what speaker I plugged in and giving me loads of irrelevant options like side and rear. Both speakers are set to front speaker. I've tried reinstalling, but still no joy. Am I missing something?

 

[fireberd]

How do you have these speakers physically connected to the PC? As these are studio monitors (I have a recording studio) you have to have separate feeds using a special cable from the PC's GREEN Speaker jack (the cable separates the two channels).

You can also try reinstalling RealTek by going to the Device Manager, RIGHT click on the RealTek entry in the Sound section to highlight it and then LEFT click "Uninstall". DO NOT also uninstall the drivers. Then restart the PC and when Windows starts it will detect and reinstall the sound. This will fix many corruption problems.