@Zing Yes, of couse I've tried . As other users with related issues, in RB 7.x.x. I can only see 3 options (default, hdmi and Conexant(default)), but in RB 6.1.1 I had available at least 6 options (devices) for audio output and it worked for me.
I have search in all directories and I have found some interesting in files located /proc/asound/ (running process). I supose that it means that hardware is recognized and installed, but by some reason not usable or available for me.
/proc/asound/cards
0 [PCH ]: HDA-Intel - HDA Intel PCH
HDA Intel PCH at 0x4000100000 irq 126
/proc/asound/devices
2: [ 0- 0]: digital audio playback
3: [ 0- 0]: digital audio capture
4: [ 0- 2]: digital audio capture
5: [ 0- 3]: digital audio playback
6: [ 0- 7]: digital audio playback
7: [ 0- 8]: digital audio playback
8: [ 0- 9]: digital audio playback
9: [ 0-10]: digital audio playback
10: [ 0- 0]: hardware dependent
11: [ 0- 2]: hardware dependent
12: [ 0] : control
33: : timer
/proc/asound/pcm
00-00: CX20632 Analog : CX20632 Analog : playback 1 : capture 1
00-02: CX20632 Alt Analog : CX20632 Alt Analog : capture 1
00-03: HDMI 0 : HDMI 0 : playback 1
00-07: HDMI 1 : HDMI 1 : playback 1
00-08: HDMI 2 : HDMI 2 : playback 1
00-09: HDMI 3 : HDMI 3 : playback 1
00-10: HDMI 4 : HDMI 4 : playback 1
Now I am going to make a new (4th) fresh install of RB 7.1.1... may be my last attempt before going back to 6.1.1