@marcdk Dude, I know you can probably guess by yourself that:
we are not Retroarch pros
some settings could have been written AFTER recalbox was started
we can't keep an eye on every Retroarch commit + every libretro core commit + every emulator commit + every buildroot commit
just regarding dispmanx, I'm the one who added it on 4.1
we terribly lack time and/or contributors to do this ground work
and yes, we also aim for the "most compatible" configuration in terms of emulation but also arch (pi, odroids anx both x86 share the same RA configuration file)
We're really open to get feedback from users if they are willing to improve anything. But just read our commit log, just check by yourself : hardly any one does.
Now a little earlier in the conversation you asked
So please tell me how to significantly reduce the input lag on recalbox with a raspberry pi. I will measure it and extend the article right away.
@joinski gave you some leads, so go ahead and try it by yourself, measure it, write blog articles if it's your hobby. We both know it will never reach the latency of a modern computer or a dedicated box. But it can be slightly improved, maybe to a point where you can feel "more comfortable" when playing, without ever reaching what a PC can do. Regarding PC, i also remember that some libretro forum member made some measure and sad a windows PC was around 7 FPS of input lag, linux was 1 FPS above.
@eightkiller il faut savoir que le gestionnaire de bluetooth garde un peu tout en mémoire, et qu'a faire des allers/retours dans l'appairage, ca ne sert a rien. Genre là je viens de faire 4 appairages successifs sur un pad 8bitdo sans réussir. J'ai fait "oublier les pads" et je retourne pour appairer : tac ca marche direct
I solved used Sixasis Pairing tool from Windows, i forced my "problematic" Shanwan to connect to Raspberry BT address.
Now i have the problem that all 2 shanwan copies are detected as "Playstation 3 original" , but i selected Shanwan drivers from configuration and i read that supports "original and shanwan" , so at the moment i cannot see any issue with this.
Recalbox is free and support is not expected to be given quickly, i just ask if somebody can shed light about where BT pairing informations are stored, why Shanwan copies are detected as Ps3 original and so on.
In the FAQ, in the tutorial we can add Sixasis Pairing tool way for problematic controller, i can give my availability to improve the community experience.
I also had other issues with Ps3 ORIGINAL pad (that now i use only with Android phone), this device often pressed buttons, never really pressed! Led often stay OFF, but pad was working (with ghost pressing issue).
I thought was a problem with pad, but with Android works like a charm, maybe if reoccurs with Shanwan units i should open another thread.
Car j'ai le même soucis de lag sur la même TV que toi avec mon PI3/recal4.1 et manettes PS3 en BT (même avec une autre manette d'ailleurs: no name ou XBOX+dongle).
Pas eu de soucis avec mes consoles précédentes: Wii / Wii U / PS3 et Switch.