@Azurden I believe you are confusing various uses of the word 'set' and incorrectly equating them. You need ROMs that match your emulator's needs. The easiest way to deal with this is to get yourself a complete collection (a rom set) of MAME 0.78 roms. Individual games are comprised of rom sets as well. Different versions of a game will have different roms comprising them. Missile Command set 1 and set 2 are two different hardware versions of Missile Command.
Get yourself a full collection mame 0.78, copy the games you want over to the roms/arcade folder on your pi, and then use lr-mame2003 as your emulator on the Pi.

Hmm. Now I'm wondering where the setting is for bilinear filtering is located at. EDIT: Found it. Everything is now good. Thank you for the help.

so back again :) what happens to the retropie? once a few month ago it was very very user friendly just install and transfer roms.

now i got a really bad start with the new version 4.4 nothing seems to run anymore.. no kodi ( same problems i got initial with the NES roms ) no other emulators.. all got the same problems.. has there be a change in the versions? or why do i have that problem with the 4.4?

never mind, i fixed it! thanks for help @mitu!!! really appreciate it

@musclebound it's very likely related to vram but as @quicksilver stated, we need a lot more information to even try to point you in the right direction.

In the future please use a descriptive title for your issue per the forum rules. Otherwise we'd just have walls of "please help" on the threads

@mitu Oh ok then. Thank you

@mitu That's what I have been using. The only reason I wanted a libretro core was because my pi would often crash when launching other games/emulators after using Drastic. If there is a way to completely unload Drastic after closing it that would be great but thanks for your help 👍

@mitu Indeed. I have been careful about case. I manage some old school UNIX boxes at work, so I am not unfamiliar with case issues. I am using a keyboard attached directly, not SSH.

Five reboots later, I was just able to get it to work. I have no explanation. (I have parkinson's and typically have a ton of typos, so I am going to just assume user error for now.)

@markyh444
Oh poop, I thought I was on the Kodi forum... My bad!

Thanks mitu! It works!!!!!

i just noticed the same issue occurs with sega cd and sg-1000

@quicksilver Yeah I figured that out in the end thanks tho x

@gizmo90 you could also put them in the arcade folder. The arcade folder let's you select from multiple different arcade emulators (libretro mame, advmame, fba etc) it's used for organizing if you have multiple romsets and you want to keep them all in the same place.

Hello,

Quick update. I re-flashed and figured it out.

The problem was that i had the PS3 controller driver enabled and this was disconnecting the ps4 controller after it had synced up as they don't work together.

So i disabled the ps3 driver and then just blue-toothed the PS4 pad the normal way (without the DS4 driver) and it works perfectly.

Thanks for your help.

@Parabolaralus Are you using the prioprietary Nvidia drivers or the nouveau (open-source) driver ? What video driver are you using in RetroArch ?