Vertical arcade games have CORRECT integer scaling when turned sideways, but INCORRECT integer scaling when displayed normally (vertical orientation). I have tried overcoming this through clever manual aspect ratio manipulation but alas, it seems impossible. I’m using Pac Man as the test game (although any other vertical game shows the problem). It’s very clearly wrong: text is a wee bit janky and Pac Man’s diagonals are not diagonal. I’ve tried all the cores and they all have the problem. My guess is that the config assumes a 4:3 screen but the CubeXX has a 720x720 1:1 screen.
I was going to try messing with the viewport configuration, but then I learned about the MuOS retroarch sandbox. Do I need to go full freedom mode to experiment with text files?
Yep! I’ve read the (excellent) guide, and I’ve been saving overrides for other reasons, but none of the video aspect scaling settings lock it into a correct integer scaling situation for VERTICAL arcade games (horizontal are fine). I’ve tried all the Custom aspect ratio multipliers, and even switching off the integer scaling and manipulating it one pixel at a time. There’s some number that’s off somewhere, and I don’t have access to fix it. This is only a problem for MuOS (I started with Loose Goose) on the cubexx… stock displays vertical screens without issue.