no hdmi audio on older tv

[Jiri Vanek]

Hello!

I have f29 (kernel-4.18.12-300.fc29.aarch64 ) on  machine, which is changing its place from time to
time - between two TVs. Old, and older:)

Both are connected by HDMI. Video output is fine, even acceleration is working,  but sound work only
on newer of those two.

I don't know if this is regression, because this machine replaced 32b rapbery2 with kodi, which was
working without issues on both TVs (but was eaten by (not mine) dog)

I was following https://fedoraproject.org/wiki/How_to_debug_sound_problems but had not found much:
 - with removed pulseaudio, the aplay -vv segfaults
     - I really on pulseaudio anyway, as I need to transfer sound to this machine over network

- the diff of alsa-info.sh's is really minimal [1], only
[cite]
state.vc4hdmi {
    control.1 {
    	iface PCM
    	name ELD
    	value '100007006712000100000000000000004c2d9d02
for non working and
    	value '100007006712000100000000000000004c2d9b03
for working
[/cite]

- when alsamixer is opened, then the default looks like working, and the job on old tv; but not do
nothing older tv.
  - when alsamixer -c0 is opened, then the  vc4-hdmi reports no control for selected device for
*both* tvs (which is same as f6 and selecting vc4-hdmi)

Does anybody have a clue what to try?

Thanx in advance form java world,
    J.

[1]
--- /home/jvanek/Desktop/workingAudio
+++ /home/jvanek/Desktop/nonWorkingAudio
@@ -1,5 +1,5 @@
 STDERR:
-cat: /tmp/alsa-info.TzPwpaQcKW/acpidevicestatus.tmp: No such file or directory
+cat: /tmp/alsa-info.GXybsmPDbN/acpidevicestatus.tmp: No such file or directory
 cat: '/sys/module/(null)/parameters/*': No such file or directory

@@ -8,7 +8,7 @@
 !!ALSA Information Script v 0.4.64
 !!################################

-!!Script ran on: Mon Oct 29 14:09:06 UTC 2018
+!!Script ran on: Mon Oct 29 14:15:02 UTC 2018

!!Linux Distribution
@@ -152,7 +152,7 @@
    control.1 {
    	iface PCM
    	name ELD
-		value
'100007006712000100000000000000004c2d9b0353414d53554e470907070000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
+		value
'100007006712000100000000000000004c2d9d0253414d53554e470907070000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000'
    	comment {
    		access 'read volatile'
    		type BYTES