GA-Z68AP-D3 cannot find a way to switch to 5.1 audio through optical

[Bluezero]

Running Windows 7 Pro 64-bit, RealTek HD drivers.  When I go to the Sound control panel, I can bring up the options, but there is no speaker tab to select.  I'm running optical out to my Onkyo A/V receiver.  I'm getting sound to my speakers, but only in stereo.  The pulldown menu options are only listing 2-channel choices.  What do I need to change to get it going in 5.1?  Please let me know if you need anymore details.  I had this setup running fine with my previous mobo's optical out, it was not a Gigabyte mobo.

[teknology9]

Hi,

Have a read of this thread and see if it helps to solve your issue.

http://www.tomshardware.co.uk/forum/259712-10-realtek-audio-optical-games

Hope it helps

Teknology9

[Bluezero]

So basically I can't get 5.1 on anything but movies?  But I thought my other mobo did a 5.1 test and it was working...maybe it was simulated?  Anyway, I still can't get it to recognize that any speakers are plugged in.  Would going to HDMI out from the video card help anything?

[Flatline]

Have you tried turning on "Dolby Digital Live" for the Digital Output (Optical) ?

http://www.dolby.co.uk/consumer/understand/playback/dolby-digital-live.html

Provides realistic 5.1-channel surround sound effects during interactive video gameplay, immersing PC and game console players in a highly realistic game experience

There won't be a "Speaker" tab as you haven't plugged into a speaker port, as your using an Optical connection.