This isnt really a bug, but more of suggestion.

I use TextureIO to load textures using opengl, and when using the
Fullscreen library, those textures go blank, i believe its because of the
opengl context that is destroyed.

It would be good to have a reall fullscreen mode in processing or someway
to use different methods to load textures and not only PImage, so we could
set Texture Filter settings and states.

Thank you

does this happen when processing runs in present mode, using screen.width
and screen.height?

if not, then it's a bug in the fullscreen library.

no followup, closing bug.