[joule-linux #13] No HDMI audio output profile.

[Alfie Huang]

Steps:
1.Modify configuration to enable HDMI Audio features and disable Analog Audio features.(by add/remove # symbol)
  $ sudo vim.tiny /etc/modprobe.d/joule-snd.conf
2.Reboot system to enable settings.
3.Switch to root and do following steps:
  $ sudo su -
  $ mkdir -p /run/user/0/snap-pulse/pulse
  $ pulseaudio.pactl list cards

Except Result:
List Card #0, which is about HDMI Audio profile information.

Issue Result:
No any cards are listed.

Note:
joule-linux 4.4.0-1003.8-1 #12 do not have this issue.

----------------------------------------------------

Name Version Rev Developer Notes
alsa-utils 1.1.2-5 68 canonical -
bluez 5.44-2 84 canonical -
checkbox-tuchuck 6 x1 devmode
core 16-2 1689 canonical -
joule 16.04-0.8+3 4 canonical -
joule-linux 4.4.0-1004.9-1 13 canonical -
librealsense 1.12.1-snap3 3 canonical devmode
pulseaudio 8.0-3 9 canonical -
snapweb 0.26.1 207 canonical -
udisks2 2.1.7-8 80 canonical devmode

[Jesse Sung (wenchien)]

@Alfie and @Robert,

I believe this issue can be fixed by
https://people.canonical.com/~jesse/lp1700686/

It's a 4.4.0-1004.9 with a fix applied but I didn't bump the ABI number. Please try it and let me know if you can reproduce the issue with this kernel or not. Thanks!

[Robert Liu (robertliu)]

Try the kernel mentioned in the comment #2 on the Ubuntu desktop, the HDMI audio works normally and there is no i915 or HDMI related warning message in dmesg