@Folly 😆

I don't have much experience with AdvanceMAME either, but what I'm reading indicates that its lightgun controls function as emulated joysticks and/or are Windows only. A quick test with the border applied via artwork gives an inaccurate cursor with bad sensitivity. The performance loss is a hurdle that seems to make further testing pointless.

A careful application of the RetroArch lightgun API doesn't require any sensitivity adjustments by the user. As long as the coordinates are scaled properly by the emulator, where you point the gun is where the cursor goes.

I find even with a pi4 i can't run anything past 1080p, also make sure you have your game mode set on your tv.

I will admit i have not attempted to use advmame yet, so i am just kinda throwing out suggestions.

@Kartman Hello, I cannot find a good scanline reproduction with ADVMame. It does not use shaders, only overlays. Tried to make a few scanline overlays and had no luck. There are video options for scanlines, but I could not find anything that looked as good as shaders do.

@mitu I've got it working now, I had a typo in my file, I had missed out the / before dev/input/. Schoolboy error but sorted now. Many thanks for the pointers and your help. Working between my PC and the cabinet is quite tricky. I'll need to get SSH sorted out so I can do the edits from the PC direct.

I've recently grabbed myself a GRS fight yoke from Amazon US. I am going to swap out my Alan-1 yoke and usb adapter for the GRS and will be upgrading the Pi3b+ to a Pi4. I am still getting audio glitches when destroying the Death Star. Hopefully, I'll be able to get rid of these with the extra power of the Pi4 and a more up to date emulation. I'll post more when I get the swap done.

That being said, you should try one of the other MAME emulators - Mame2003 has mouse support and RetroArch seems to detect your mouse. As a plus, it supports absolute pointing devices.

@jeffahughes Please do not post a support request without first reading and following the advice in https://retropie.org.uk/forum/topic/3/read-this-first