I have the newest RetroPie for 3B+ (buster some-shizz some-shizz) and do smol updates quite often, every few “commit”s via Retropie Menu. The symptoms of the noise starting only when Retropie starts to load and that instantly goes away on a soft reboot, made me think it's possibly a driver issue somehwere? It's worth noting that I have used the 3.5mm jack before but prefer using the hdmi audio because I find it to be a much cleaner audio source.Raspbian and everything were installed from scratch on a 3B+ around early Summer, so whichever stock firmware was in May-Juneish. On the reboot, the sound never comes back! I also noticed that if I let retropie boot into ES and immediately do a "Restart System" from ES, the noise stops as soon as the soft reboot stops all of the retropie services. The static noise never comes back after loading an initial game and it ONLY happens on a hard power cycle. When I select a game to play, the noise instantly goes away and the game audio is absolutely crystal clear and sounds fantastic. That sounds continues and never goes away until I load an actual game. At that time a loud crackling, hissing, static noise starts playing very loudly through my speakers that are plugged into the vga adapter. When I power on my retropie, all is quiet until around the time the retropie splashscreen comes on.
I purchased this hdmi to vga adapter that I also use for my audio out as opposed to the 3.5mm jack.
I have a retropie (rpi3b running retropie 4.4.) powering my arcade cabinet that has an lcd monitor in it that is vga only. Before I do that, I thought I'd post here just to see if there is any possiblity that a configuration / driver setting could possibly fix my problem. I realize that the most logical fix to my problem would be to buy a different hdmi to vga converter with audio and try that out.
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