Hello fedora users out there in fedora land

I have a problem with hdmi audio on fedora 32 with an Nvidia card.

I recently had to replace my desktop workstation,  it is now built upon
HP elite desktop, Nvidia card on fedora 32 .

After install, audio over HDMI on the video card was OK, but after using it
for a short while, the audio over hdmi stopped working.

the sound config now directs all hdmi audio to the installed
internal speakers rather than out the hdmi port.

suggestions? thx, jackc...

!!Packages installed
!!--------------------

alsa-utils-1.2.3-4.fc32.x86_64
alsa-lib-1.2.3.2-1.fc32.x86_64
alsa-plugins-pulseaudio-1.2.2-1.fc32.x86_64