@louf said in Lost controller function after installing MAME2003-plus:
I would have tried to include further details as requested by the moderator, but what is "relevant" becomes obtuse for me at this point.
the verbose log would have indicated all relevant overrides, and in addition to that the relevant configs are
/opt/retropie/configs/all/retroarch.cfg,
/opt/retropie/configs/mame-libretro/retroarch.cfg or
/opt/retropie/configs/arcade/retroarch.cfg depending on where your roms are
and for fbeo,
/opt/retropie/configs/fba/retroarch.cfg or
/opt/retropie/configs/arcade/retroarch.cfg depending on where your roms are
anything changed within the MAME menu is stored in additional non-human readable files detailed here: https://retropie.org.uk/docs/lr-mame2003/#mame-menu and should be deleted before investigating any retroarch-side config issues.