@kchito Solo hay un núcleo de Jaguar en Recalbox, por lo que si de alguna manera puede hacer que funcione, el problema no es el núcleo:
https://wiki.recalbox.com/en/hardware-compatibility/emulators-compatibility

Si puede hacer que funcione con el mismo núcleo, el problema debe estar en el archivo de configuración, intente hacerlo de esta manera:
https://wiki.recalbox.com/en/tutorials/controllers/configuration-of-customized-buttons/create-custom-configuration-per-emulator

@lhari84

No BIOS needed for Jaguar at all?

No BIOS is required for this console:
https://wiki.recalbox.com/en/emulators/consoles/atari-jaguar/libretro-virtualjaguar#bios

Used Emulator/Core (libretro-virtualjaguar) is not ready (yet?) to work properly on Pi 4? And/or it maybe will never work properly on Pi 4, because the complex original Jaguar hardware makes emulation quite difficult and/or needs more power for emulation than the Pi 4 provides.

It's something between these two options, the emulator currently requires a lot of hardware as it is not optimized enough, and maybe Rpi4 will never be able to emulate this console properly.

@scavy je suis en 1080p dans les émulateurs Amiga et tout le reste des systèmes sont en 720p réglage d'origine je n'ai rien modifié

@fabrice-57 @Zing J'espère que ce sera corrigé dans la 7.3 😊

@foggy When you add ROMS over the network, Recalbox cannot recognize them instantly, it is necessary to use this option for EmulationStation check the changes.

@levitivo4 faça backup e através do menu faça a redefinição de fábrica, isso irá apagar todas as configurações, mas manterá seus arquivos pessoais.

Verifique as opções de áudio no menu do Emulationstation acessível apetando Start na tela de seleção de consoles, e, além disso, é possível alterar as opções dentro do menu do Retroarch, acessível abrindo um jogo e apertando Hotkey+B.
Verifique essas opções, talvez alguma delas lhe ajude.

@TITAZZE

d'apres ce lien ton bios a la bonne signature
https://gitlab.com/recalbox/recalbox/-/raw/master/board/recalbox/fsoverlay/recalbox/share_init/bios/readme.txt

essaie de respecter le nom en minuscule pour voir...

- ATARI ST :
b2a8570de2e850c5acf81cb80512d9f6 tos.img

@lejule hello
merci de prendre connaissances des quelques règles du forum.
On ne peut pas t'aider sur ce sujet.

@Zing Thank you. I have had success! I was using a USB hub to extend the reach of my mouse cable. I unplugged that plugged the mouse in direct and it works on the ST fine now. How strange that SCUMM worked with the hub but not hatari.

Thanks for your patience and assistance.

Kind regards