Is it possible to use screen rotation in Retroarch with Dispmanx? I’m attempting to set screen rotation for some FBA roms and it doesn’t seem to work.
Why not use the gl video driver ? I didn’t experience any speed increase with the dispmanx video driver on raspberry pi, and screen rotation seems buggy with video drivers other than gl (see https://github.com/libretro/RetroArch/issues/4165).