No sound from HDMI

[RK.aus.S]

Hello

I'm quite new with RetroPie v3.8 (as well as Linux) and have this Problem(s):
Rasperry Pi 2 has no sound via HDMI (newest Version 3.8 of RetroPie as well as v3.7). Sound from 3.5mm jack works.

What I already tried out:

• Changed sound volume settings on RetroPie -> still no sound from HDMI

• Tried out some other games from RetroPie -> still no sound from HDMI

• Checked a second Raspberry 2 board -> still no sound from HDMI

• Checked an old Raspberry 1 board -> still no sound from HDMI

• Changed HDMI-Cable to TV -> still no sound from HDMI

• Changed TV -> still no sound from HDMI

• Installed KODI on both Rasberry boards (means v1 and v2) -> sound from HDMI ok!

Even when I am a beginner, it seams quite sure that my problems is due to a failure in the RetroPie release - or am I wrong?
Has anyone a hint for me? :-/

Regards,
Roman

[BuZz]

Have you gone through http://elinux.org/R-Pi_Troubleshooting#Sound / https://github.com/RetroPie/RetroPie-Setup/wiki/Sound-Issues ? (the hdmi_drive=2 option is the most likely fix)

[RK.aus.S]

Thank you very much - that was it!
Sorry, looking back, it was a silly question... :-/

Regards.