Right now, there's no Vulkan support in the OS that RetroPie uses (Raspberry Pi OS).
A new version of the Raspberry Pi OS is in the works, based on the new stable Debian 11 'bullseye' release, and that will probably include Vulkan support. We'll see when this new RPI OS is released what's the Vulkan status and how this will be integrated in RetroPie.

@guyhotspur that’s not a verbose log and you didn’t supply all the info requested in https://retropie.org.uk/forum/topic/3/read-this-first -

please start a new thread for your other issue with the associated verbose log (and https://retropie.org.uk/forum/topic/3/read-this-first info)

@hooperre Hello, little late but another solution, but unfurtonatally not so pretty ,it is to take a look at BS Zelda fourth quest

@oleguer said in Make super pc using raspberry & retropie??:

And my question is, you can put 2or4 raspberry pi on raid to use like one "big" pc to use retropie and enhanced the emulator cores??

That's not how clustering or RAID works.

or this is imposible on retropie??

This task distribution/scaling is not suited for emulation.

I know what you're talking about. That's the MESEN emulator. It's supposed to be cycle accurate which means it's likely too processor intensive to run on the pi. There is a libretro port for it, but it doesnt seem to appear in the retropie selections. Maybe look in the experimental cores.

Thank you for the information.
Now I am a bit wiser.

Bump, adding /opt/retropie/configs/all/retroarch.cfg file to the first post ... I don't see anything wrong with it. Yet neither controller or keyboard work with lr-cores.
EDIT : managed to get back controls on lr-cores by deleting /opt/retropie/configs/all/retroarch-joypads , disabling , enabling xboxdrv, remapping the controllers and lots of reboot

On another note, no progress on getting enhanced resolution and analog support with pcsx-rearmed :/