How can I send image to 2nd monitor when running in TTY!?

[Fredrum]

Hello!

I'm trying to find a way to launch my SDL program on a 2nd monitor/display when running with kmsdrm in TTY.

It's all fine when I'm using just one display but I now need to push the program to show up on the secondary screen, which in my case is a Oculus Rift CV1.

I can get it to show up there but only if I unplug my regular and primary monitor first. But of course that's not a good actual solution.

I am using
Raspberry Pi4b
Ubuntu 22.04 64bit
SDL 2.0.20

I have tried using display bounds and that works when on the Desktop but not with TTY.

        SDL_Rect displayBounds[2];
	for( int i = 0; i < nDisplays; i++ ) {
		SDL_GetDisplayBounds( i, &displayBounds[i] );
	}
	int place_x = displayBounds[ 1 ].x + 100;
	int place_y = displayBounds[ 1 ].y + 100;
	printf("Bounds [0]:  %d  %d\n", displayBounds[0].x, displayBounds[0].y);
	printf("Bounds [1]:  %d  %d\n", displayBounds[1].x, displayBounds[1].y);

	sdl_window = SDL_CreateWindow(
		"Chiaki",         			///    const char* title
		place_x, 	///SDL_WINDOWPOS_UNDEFINED,  	///    int x: initial x position
		place_y, 	///SDL_WINDOWPOS_UNDEFINED,  	///    int y: initial y position
		screen_width,                   ///    int w: width, in pixels
		screen_height,                  ///    int h: height, in pixels
		SDL_WINDOW_OPENGL | SDL_WINDOW_RESIZABLE
	);

Does anyone know if this is possible to do with SDL?

Cheers!

[slouken]

Does using SDL_SetHint(SDL_HINT_KMSDRM_DEVICE_INDEX, "1"); (or whatever is the correct index for your display) work for you?

You can grab the pre-release snapshot supporting this hint from: https://www.libsdl.org/tmp/SDL-2.0.zip