PulseAudio sound disappears on hdmi via stereo output

[Rocinante]

Оn my Raspberry Pi 4 4GB version the sound constantly disappears when I connect the computer to my Samsung plasma TV using the hdmi output. This works great with an analog 3.5 jack and hdmi-vga adapter, but I can’t set up stable sound with a "clean" hdmi connection. I tried with different hdmi cables that work great with a desktop PC and other equipment and it seems like a software problem. Used operating system Ubuntu server 19.10.1 aarch64. I try removed pulseaudio and the sound works fine through alsa on hdmi

[Hui Wang (hui.wang)]

I enabled the audo in the config.txt:
# Enable audio (loads snd_bcm2835)
dtparam=audio=on
disable_audio_dither=on

Installed the pulseaudio based on the 19.10.1 aarch64,

Then run paplay test.wav (about 30 seconds), no problem found.

How did you test the audio?

[Rocinante (olevenets2)]

When watching a video on YouTube and on VLC, if a stereo output is selected in pavucontrol, when switching to monaural sound goes without stuttering and problems

[Rocinante (olevenets2)]

any ideas?

[Rocinante (olevenets2)]

I made a log with heart rate audio while playing video on vlc when there is no sound. Hope this helps

https://paste.ee/p/q8dIz

[Rocinante (olevenets2)]

This problem has been known for 5 years and has not yet been resolved https://github.com/raspberrypi/linux/issues/688