Hi noobCode!!
The only SDL2 version I got installed is 2.0.14. The Ubuntu repo SDL2 version is old, and it doesn’t support a lot of applications that is already using the new version, that’s why I’m using v.2.0.14.
As I’ve said, I think it seems to be a version issue, probably SDL2 version, as you supposed.
The DISPLAY
envvar is already exported, and de value is :0
(my X11 display ID).
You can get the SDL 2.0.14 here, if you want to test it, but I think it isn’t necessary, I’ve already identified the cause (the SDL2 version).
Thanks!!