Yet another post on no sound via HDMI
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Great info, I've been looking in to a portable system as well. So we know your pi out out sound with the TV test. I'm guessing it doesn't like your controller for some reason but you could always use the 3.5 jack right.
Very interesting indeed about running off the battery pack. You were using OSMC to watch the Disney movies? I guess it isn't using too much power to run that. Did you have a keyboard or anything hooked up maybe via bluetooth?
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@opensourcefan no only a usb keyboard. File was a 1080p mkv
And yes. I will be using the 3.5mm hack since most lcd controllers don't have an on-board amplifier anyway. Must be this that's causing this. Tried 3 other screens and all give sound via hdmi.
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@vinz3nt That's too bad because that does look like a nice little screen and if you think the image quality is excellent even more of a bummer. Oh well, the hack isn't that big of a deal.
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still no luck on my end with the recommendations in your link above for HDMI sound. I'm using an older ASUS computer monitor with built-in speakers for all my initial setups and testing. I had the exact same issue with a pi2 board with Retropie v3.5. I now have a fresh install of v3.8 on a brand new pi3 board.
Video works perfectly. Audio does not work at all... and editing /boot/config.txt has never worked for me no matter what tweaks I made.
Curiously, If I run Kodi from my ports menu, sound magically starts working. As soon as I exit Kodi, sound works in ES and all emulated games. If I do not run Kodi, I get no sound.
To work around this, I added a boot script to start kodi, then exit, and voila, sound works all the time. Crazy, but at least a workaround for me. Any idea what causes this or how to fix?
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Wow that is super strange, strange enough to maybe be a bug. I'm sorry but I'm not versed enough to figure that weirdness out.
I'm very curious what Kodi is starting up that is giving you sound and why whatever that is isn't already started. The Pi and the monitor are obviously compatible since you're getting sound with Kodi so I think we can rule out hardware issues. You wouldn't by any chance have emulation station or something set to zero volume would you? or something similar to that? Again though I'm at a loss.
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I checked volume levels in ES and the monitor and had both turned up all the way... had quite a surprise "kodi bleep" when I accidentally found out sound worked when I started up Kodi.
I never had the sound issue above when switching between my main setup (onkyo receiver with epson powerlite projector) or samsung TV. It always seemed to work fine there. Initial sound only failed when switching out to the Asus monitor I was using for test builds and tweaks.
It's been quite a while since I used the Asus monitor; but believe after re-imaging to 4.0Rc1 the sound issue went away.
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I have HDMI sound problems too. I found a strange work around for my issue. To get HDMI sound to work globally I simply need to go into Ports and load up Doom fire the gun a few times and exit out. Sound works in all games after doing that. Lol I have no clue why.
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Same for me. I started Kodi and it works. Wish I could find a way to fix it.
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@brandonrcampbell you should start a new topic then detailing your set up - https://retropie.org.uk/forum/topic/3/read-this-first
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Just for shits and giggles check your sound setting in raspbian. I have raspian installed along with Retropie. My issue turned out to be that I had sound muted in raspbian in the top right corner. Once I unmuted it and put the volume all the way up. Restarted in retropie I had sound for all games.
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I had same issue with sound not coming through hdmi. I found this which did the trick for me.
http://raspberrypi.stackexchange.com/questions/44/why-is-my-audio-sound-output-not-working
Which basically says to force hdmi by uncommenting the hdmi_drive=2 within /boot/config.txt, rebooted and I have sound. -
I started off with a Pi Zero and didn't think about it once i got a Pi 3. My sound didn't work because i was using the Pi Zero Retropie. It worked perfectly once I installed the correct Retropie. Good luck!
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