I edited the cfg file for keyboard input and successfully have up/down/left/right,a,b,select,start,etc set up. The issue is that when I hold a direction, it only registers maybe ~1 second of movement, then halts. I have to recenter the joystick before it registers the same movement again.
It is as though the key value (say, “left”) isn’t being registered anymore.
Older PS/2 model IPAC-2 that works fine with Windows MAME32.
PS/2 to USB passive dongle
RPi B+ 2
Latest build from Retropie/emulationstation/petrock
Every button works fine, it just doesn’t seem to stay ‘pressed’.