I realize this probably gets asked a lot but I have been through some of the steps outlined on the web and am still having trouble getting sound.
I installed Retropie a few days ago, NES, SNES, Genesis working great, still ironing out the details on PSX / Neo Geo (Haven’t had time to look at the BIOS solutions out there yet). I have a Retropie 2 and installed the Beta 3.0 version. Built from an SD image, SNES gamepad, keyboard, mouse, and USB plugged in. Games on the NES, SNES, Genesis emulate fine, however, I get no sound. I am connecting through an hdmi monitor.
I followed the steps here
http://elinux.org/R-Pi_Troubleshooting#Sound
but didn’t receive any luck. The only thing I can think of is that I am rebooting (sudo reboot) afterchanging the settings. I have tried returning directly to the emulationstation screen using startx, but my pi freezes on a white screen when I try this.
Any ideas? Thanks for any help you could provide, as you might tell, I have no programming experience prior to getting one of these.