drastic is not a libretro core, so the file you added doesn't have any effect on the emulator. I see that drastic has a 'Screen orientation' option, but it doesn't seem to add any rotation - maybe works only on Android (?).
@shylock since more or less every videogame supported by retropie is in 4:3, you're always going to get borders on the top and bottom (rather than the left and right that you would get with a 16:9 display. integer scaling won't make a difference.
with vertical MAME games it would be a nice fit, though: smaller borders on left and right than (un-rotated) 4:3 or 16:9 screens.
you'd also probably need to get a custom emulationstation theme done, unless someone has already done a square one, otherwise it's going to a look a little funky it think.
Please add more info about your system, as detailed in https://retropie.org.uk/forum/topic/3/read-this-first.
Changes in RetroArch's configuration are not saved automatically, you need to either save a configuration override (for the Core used or for the Game) or - if you want to change an option globally - use the RetroArch entry in the RetroPie system and save explicitly the configuration.
so its official, i'm quiting this build.
looking forward to future projects and hoping a pi zero 2 will come along.
i just wanted to take the time to thank everyone here for the effort to make all these projects possible for us, you are doing a great job and i am very greatfull for that.
already have a pi4 at at hand with 4gb and waiting for dreamcast emulation as i see the promising flycast core inplimentation,thats my all time favorite console looking to be very well emulated.
so big thanks to all and let me know if i can donate without paypal, cause i really don't like paypal.