Easiest workaround for that is pressing 'Alt + SysRq + R' (SysRq is usually on same key with PrintScreen )
Code-wise, at sdl2's video init, the keyboard is 'locked' so it can't spam all keypresses to shell (SDL_EVDEV_Init() function is probably doing that).
The 'unlock keyboard' function is hidden under SDL_EVDEV_Quit(), which is ran after executing SDL_VideoQuit() (to be specific, it's in "src/video/raspberry/SDL_rpivideo.c", under RPI_VideoQuit()).
That VideoQuit function is somehow not executed at ppsspp's exit, leaving keyboard in 'dead' state.
I remember i've tried to do something with it, but i can't remember or find any code changes i've made, either in ppsspp(and/or 'native') nor in sdl2 :/
Code-wise, at sdl2's video init, the keyboard is 'locked' so it can't spam all keypresses to shell (SDL_EVDEV_Init() function is probably doing that).
The 'unlock keyboard' function is hidden under SDL_EVDEV_Quit(), which is ran after executing SDL_VideoQuit() (to be specific, it's in "src/video/raspberry/SDL_rpivideo.c", under RPI_VideoQuit()).
That VideoQuit function is somehow not executed at ppsspp's exit, leaving keyboard in 'dead' state.
I remember i've tried to do something with it, but i can't remember or find any code changes i've made, either in ppsspp(and/or 'native') nor in sdl2 :/