rpi framebuffer fixes from pssc - https://github.com/raspberrypi/firmware/issues/354
rpi framebuffer fixes from pssc - https://github.com/raspberrypi/firmware/issues/354

he writes:
number of fixes for the frame buffer and HW double buffering specifically around the Pi, making it more robust in general and coping with extended key codes better.
On a mode change on the Pi the FIXSCREEN info can change, including the base address of the bufferer and offsets stuffing up the Flips etc

Having reread all the docs and code I am more inclined to believe this is an incorrect assumption in the original SDL fbcon driver. As 'unchangeable information about a frame buffer device and
a specific video mode' had been interpreted as this info will never change, which Is a trap I also fell into on my first reading and is the assumption the original code makes.

RetroPie/sdl1,RetroPie/sdl1,RetroPie/sdl1,RetroPie/sdl1,RetroPie/sdl1,RetroPie/sdl1