Running "mednafen" emulator in full screen has black borders left/right.
You can configure X/Y scaling factor for full-screen, for each emulator.
For example, in order to configure the output of NES to fit on a 4:3 computer screen, edit the following 2 lines in "~/.mednafen/mednafen.cfg":
Default scaling factor for both X and Y is "2".
Code: Select all
;The scaling factor for the X axis in fullscreen mode. nes.xscalefs 2.5 ;The scaling factor for the Y axis in fullscreen mode. nes.yscalefs 2