@ech33k

Here is the fist link off the Google search, "retropie ps4 wired":

https://www.reddit.com/r/RetroPie/comments/3oza3b/where_to_find_a_ps4_controller_install_guide/

@cyberneticwired Awesome! Thank you, i'll give that a try!

For reference, the supported formats (in es_systems.cfg) for the Megadrive are
.smd .bin .gen .md .sg .zip .SMD .BIN .GEN .MD .SG .ZIP

I've updated the Wiki with this.

.gen files certainly work with both picodrive and gx-plus-gx emualtor cores.

@lilbud

It doesn't look like anyone has cracked linux support yet, but people are working on it.

https://github.com/paroj/xpad/issues/14

@JosepZ https://github.com/retropie/retropie-setup/wiki/runcommand

I assume you've done a Google search and that none of the listed techniques work?

Was this not an option?...

After looking at this wiki, creating the joystick.xml didn't seem to work and, when I moved on to the official Kodi wiki (http://kodi.wiki/view/keymap) the Keymap Editor Program didn't pick up anything from my controllers despite them being plugged in and working in the EmulationStation interface. A bit further down there was a section about manually modifying some more xml files. I don't understand how I can find the different button numbers.

Thanks again,
Josh

minibian is not supported. Looks like you are missing some of the raspberry pi libraries. I don't see much point putting retropie on top of a Raspbian based distro that is even slimmer than Raspbian Lite (which is what our image is based on), since RetroPie itself will use a fair amount of space etc.

I used ApplePi-Baker to install originally and I also use it to make and restore from all of my backups. I would be surprised if it is causing problems. It still sounds like you're having power issues, but if you have definitively ruled out that scenario, then you probably have a defective Pi. It could have even been damaged sometime after you bought it. Was their any extended period of time when you didn't use a case? Has it always been plugged into a surge protector?

Thanks for all the help guys, decided after experimenting to just stick with horizontal as it displays both pretty well. Here's a wee video of it in action, hope it's ok to share here.

@dankcushions
ahhh, just realised i'm using ir-fba for alcon as it doesn't work in ir-fba-next - sorry about that i totally forgot (i'm also using retropie 3.7 fyi).

so it looks like its not going to be possible??

What is in /tmp/runcommand.log after launch ?

you can check the compatibility lists, but lr-mame2003 has decent compatibility vs speed for the RPI3 (and lr-fba-next)

bad guide - you should mount the usb over the existing roms folder. symlinking it may also work (or do a bind mount from existing location).

Changing all the paths in es_systems.cfg is a bad idea.

you need to make sure you mount the drive so that the user pi can write them also. can use uid=1000,guid=1000 mount options for example.