Pull the test pin or service pin on the jamma connector dose nothing.
I realised that the image is 1920 pixel wide, resizig it in paint make it look a lot beter. pixel perfect my ass.
The french guys from recalbox won't bother to answer my emails. Great pice of technology.
They're really helpful actually- never know if your mails might get filterd or something by aggressive spam checkers. They aren't a huge behemoth company or anything, this is hobbyists making cool stuff like a lot of the scene.
There is a
Recalbox discord channel and I've had a lot of fast personal responses there
Regarding screenshots- some resolution scaling tricks are needed to take a 15khz horizontal screen and have sensible modelines for all the other resolutions they support (including vertical games!). Not sure if you've messed around with software mame machines before- it used to be that doing all the crazy timings/modelines etc for advancemame would be weeks of work. I found this to be almost plug and play, which is insane to me.
I was not expecting vertical games to seamlessly work out of the box (only some with graphical squishing that is overly distracting)!
Stuff that took me a while:
- finding out where to put the artwork files to get backdrop working
- tweaking retroarch to make vectors look *passable*, or at least not "completely shite"
- voltage/overvoltage issues with New Astro City.. hard to get PSU to output clean 5v and 100!
- some of the config menus default to non-jamma cab 15khz settings. Learning all of those to get nice preview screenshots etc took a while
- loading up favorites
- figuring out how to hide stuff I don't use, messing with some of the ports (quake on jamma is hillarious)
- linux stuff.. I like to ssh into it and do things via CLI..
- switching from SD card to NVMe drive. Huge upgrade, bit of raspberry pi know-how to get it working
I use a mix of mame and fbneo mostly.
Happy to help out if you want getting stuff working