@fedekrum I saw that you have already opened an issue:
https://gitlab.com/recalbox/recalbox/-/issues/2060

Developers will check it out as soon as possible.

@coutoreis Hi, my snes romset works perfectly from former version to the latest. If you did a fresh install, try the different cores and see if your problem is solved or not (give us a feedback).

without having changed any settings, and using the "info" button on the tv I can see the recalbox main menu displaying at 640x480, progressive, 60Hz, 4:3 aspect.

i can launch the game "Ura**s" on GBA. this game came preinstalled. it displays at 1920x1080, 30hZ, 1:9 aspect.

but now i have tried several games on different systems and they all work so far. all displaying with the same settings as mentioned above.

the only thing i have done is change the tv setting "auto aspect". it was annoying that every time the tv changed video, it tried to adjust the aspect ratio. so i finally disabled that. i tried games with that tv setting on and off and it worked consistently.

the global.videomode=CEA 5HDMI
global.ratio=auto

I really appreciate everyone trying to assist. but everything seems to be working fine and I have no idea why.

Juste remove all overclock settings, it's hardly worth on pi3

Ethernet seems to be the problem. I'm using the newest Version of GFE with a GeForce 1070. And if I use my Edimax W-Lan Stick on my RPI2 with Recalbox 4.1.0. Moonlight works flawless.

If I disable W-Lan and jackin Ethernet I have the same problem as Florian. So black screen with sound, sometimes I see also the Steam splash screen for some secons until it freezes or goes back to the Recalbox menu. So I'm happy that it works with W-Lan.

I had the same problem but it got fixed when I disabled "Auto Save/Load" in the game settings.

@kyled871 is your sd full ?

Thank you very much for this quick answer!

@c-f-g he is probably asking in order to find out why isn't that cable working.

La dernière màj a réglé le problème, c'est donc résolu 🙂

@Robsdedude This is the best way to report an issue directly on GitHub: https://github.com/recalbox/recalbox-os/issues

Yep 🙂 if you check createRecalbox.sh (the last one) you will see a line make $branch_defconfig this take the defconfig in the config directory corresponding to the branch. I updated the wiki : https://github.com/digitalLumberjack/recalbox-os/wiki/Compilation-&-Modifications-(EN)