RP4 NO SOUND on HDMI1 port

Hi

Pls add sound on HDMI1 port.

Sound work only on hdmi0 port. add sound to both hdmi micro port.

i try add line hdmi_drive=2 in config file but no work. only hdmi0 port have sound.

i try chg in kodi option hdmi/analg and hdmi+analog but nothing.

Mybe add hdmi2 in this option in kodi?

thx

I have RP4 2gb - original 3A power and last libreelec (LibreELEC-RPi4.arm-9.2.3.img.gz) + samsung TV. hdmi0 sound work fine. hdmi1 have only pictures(no sound)