Hi Pat -
- Try these fixes for 5.1 Surround sound including back channel issues:
https://www.sony-asia.com/electronics/support/a...
https://thegeekpage.com/5-1-channel-surround-so...
https://forums.tomshardware.com/threads/5-1-sur...
https://www.youtube.com/watch?v=Ar2eTzlxOYk
- Double-check you correcly enabled Surround Sound in WIndows 11:
https://winaero.com/how-to-enable-spatial-sound...
https://pureinfotech.com/enable-spatial-sound-w...
https://beebom.com/how-enable-spatial-sound-and...
https://thegeekpage.com/5-1-channel-surround-so...
- Further Troubleshoot surround sound in Windows 11:
https://appuals.com/channel-surround-sound-not-... (Avoid ad links which intrude into editorial copy, especially avoid Restoro, PC Repair Tool and Reimage ads)
https://www.reddit.com/r/techsupport/comments/q...
https://www.reddit.com/r/Windows11/comments/q00...
https://www.thewindowsclub.com/channel-surround... (Avoid ad links which intrude into editorial copy, especially avoid Restoro, PC Repair Tool and Reimage ads)
I hope this helps. Feel free to ask any questions. Based on the results you post back I may have other suggestions if necessary.
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