[cairo] Paint a image in Cairo surface X11

[Alex Vazquez]

I have a problem when I paint a image using Cairo and X11.
The test is simple I try paint a image in a  X11 Windows using Cairo.
If the size of surface  is less that size of image, X11 don't show the
image but If the  size of surface  is bigger that the size of image  X11
show fine the image.

Why is happen?
How can i fix this problem?
I add a test where you can test this problem.
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