c++ - SDL_CreateRenderer creates Invalid renderer -

c++ - SDL_CreateRenderer creates Invalid renderer -

i'm trying create render in sdl2 doing:

sdl_init(sdl_init_video); sdl_window * w = sdl_createwindow("window", 0, 0, 500, 500 0); sdl_renderer * r = sdl_createrenderer(w, -1, 0);

but after sdl_createrenderer print sdl_geterror() , shows:

invalid renderer

when rendering things rendered badly (this part of game). in same computer on windows works , not show "invalid renderer" error.

i first downloaded sdl2 apt-get install, later compiled source , i'm still having same problem.

i'm not sure if of import i'm running ubuntu 14.04 gnome shell. i've got ati video card , i'm using xserver-xorg driver. using fglrx had problem sdl changed it.

any clues on happening or how can fixed?

the bad rendering because buffer wasn't cleaned before beingness used. thought had sdl_createrenderer because showed error in linux , not in ubuntu, aparently had nil do.

c++ linux sdl-2