https://bugs.winehq.org/show_bug.cgi?id=40082
--- Comment #2 from jotape1960 jotape1960@yahoo.com --- Yes, I use a multichannel Pioneer device (5.1), connected directly to the analog outputs of the desktop PC.
With Windows XP, and 7, the surround audio worked so fine!!!
Now, with Ubuntu Studio 15.10, WineHQ 1.9.3 doesn't work with surround audio (if we set the "winecfg" to use Pulse Audio with surround audio, the Windows audio software is frozen, doesn't work, we have to re-set "winecfg" to stereo audio to use Windows audio software).
BUT... It isn't a Linux issue, because all the Linux audio software run with surround audio so fine (even the command line "speakers-test" app)!!!
In other words, this isn't a hardware or OS issue. This is a WineHQ issue.
Well, I hope some day it will be fixed.
That's all, folks!!!