Hello…although I just joined the petrockblog forum, I’ve been tinkering with RetroPie for about 1 month and “no sound through HDMI for rpix86” is an issue that I’ve run into and have yet to solve.
However, I can see that one of the posters above suggested to do this:
“I edited/created (can’t remember) the Start.sh under /home/pi/RetroPie/emulators/rpix86 and added -a0 to force HDMI sound.”
Could you perhaps post exactly what you modified to get HDMI sound to work for rpix86? I’m very new to to this world of Raspberry Pi/DIY/programming, so exact details (perhaps attaching the file itself?) would be most helpful. Thanks.