

With the method I use, the Test on the Advanced tab only plays at most FL and FR through Optical, and does surround in games (etc, no extra help from my receiver). What the heck could've happened over the last few weeks? Radeon RX580 update? I'm out of ideas.

I uninstalled the drivers, tried the latest ones, tried the Windows ones, reinstalled Windows, and tested just about everything else I could imagine. So I disconnected and reconnected and even tried a different cable. So it seems the machine isn't detecting the fact that the speakers are connected via TosLink. I am connected via optical TosLink cable.įWIW, in the Realtek HD Audio Manager > Speaker Configuration tab > only 2 speakers are showing, and in the Speaker configuration sub-section, Stereo is selected and grayed out/greyed out/disabled. Every time, I see the "DECODE" light actuated on my Logitech Z906 "receiver." I check the General tab > Jack Information > Rear Panel RCA Jack - which is incorrect. I click the Advanced tab > Default Format is Dolby Digital Live (5.1 Surround) > Test > I hear the same test sound from the FL, a pause (which would presumably be the center channel), then the proper test sound from the FR.and that's it. I test it in Windows Sounds > Playback > double-click Realtek Digital Output > Supported Formats tab > under Encoded formats, select Dolby Digital > Test > I hear 5 discrete sounds from 5 discrete separate channels properly. I fire it up yesterday, and suddenly I only hear sound from the FL and FR speakers. I installed Windows updates since then, but the most recent 5 or 6 are all specific to Windows Update Service itself, nothing else as far as I can tell. I most recently played the game maybe 2 or 3 weeks ago, and this was working perfectly. As my character rotated, the sound would move from speaker to speaker properly, as expected. If a gun was firing behind me and to the right, I mostly heard it from the right-rear speaker. I followed these instructions previously and was able to get DDL and DTS Interactive showing in Realtek HD Audio Manager and working in games like Overwatch where I could hear discrete sounds from individual channels, depending on my position.
