update:
sorry, i've used wrong file... ( and i can't edit first post of topic)
and full command was:

python3 tweakvec.py --preset PAL60

But now, it's said:

DeprecationWarning: The distutils package is deprecated and slated for removal in Python 3.12. Use setuptools or check PEP 632 for potential alternatives
import distutils.util

49bd1072-30df-40f5-a895-f15dba3394c1-image.png

and I'm not understanding....

@bkg2k said in Composite on RB4 at new RecalBox8.1 - quest again)):

in particular on things relying on options Raspberry is changing all along the evolution of their firmware.

not quite understood - got raspberry nearly 2 years ago... Use only recalbox and retropie on separated micro sd. So what is options Rspberry is changed in this case?

@pitch64 J'ai fais plusieurs essais pour tester.
J'ai l'impression que sdtv_mode=2 et disable_fw_kms_setup=1 comme indiqué dans la documentation n'ont aucun effet sur l'affichage. Avec ou sans dans recalbox-user-config.txt l'affichage composite fonctionne. C'est video=Composite-1:720x240@60e dans cmdline.txt qui semble important.
Pas trouvé de solution pour le problème d'affichage ES en sortie de jeu en 240p. (fonctionne nickel en 480i mais ça pique les yeux.
Vivement le RGBdual. 😊

@wenderemilio The problem is already being analyzed by the developers and should be fixed in the next version, which will be released soon (but it still doesn't have a scheduled date).
Please wait patiently and test with the new version as soon as it is released.

Ok, this workaround works, thank you very much for the research! https://gitlab.com/recalbox/recalbox/-/issues/2059

@tibreizh Vérifiez si une modification du videomode ne résout pas :
https://wiki.recalbox.com/fr/tutorials/video/display-configuration/complete-video-configuration-guide