OK, I now have sound but not as it should be! Here are all the ALSA modules and apps installed:
AFTER I blacklisted snd_hda_intel as per the guide here:
When I run the test, Left Speaker is actually coming from middle speaker, right speaker is mufled, no sound (i.e., white noise) from sub woofer and rear left working, just crackles on screen for rear right! So left speaker nothing, but is being allocated to middle speakers, nothing now on right front, sound on rear left, nothing on sub-woofer and nothing on rear right speaker. Aaaaarrrrrrggggggghhhhh! (in Mono!)
