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@SNESdreamalnd hello, always on the ES menu ? Never in game, correct ? I mean this would mean that it's not a supply problem.
Could you post an archive support when the case occurs ?
In chrome fot exemple
I have tested to analyse the audio signal from my amp :
On the first boot it says "Signal PCM" on both ES and Retroarch running a game, I can hear the sound OK for both.
After 1 or some reboot (randomly), still says PCM on ES, but says "Unknown" signal on retroarch running a game :