dont get fullscreen on the rpi

[berne]

I just put my mirror toghter, but now i dont get a fullscreen, the rpi is in the middel of the screen. I want it to be to the edge.
any ides?

[lavolp3]

@berne YOur question is difficult to understand. A bit more explanation would have helped.
If the whole raspbian desktop is not fullscreen, you might take a look at this:
https://forum.magicmirror.builders/topic/601/not-realy-fullscreen/3