Kivy Images show black Screen

[jo...@gohyperion.com]

I am trying to display a set of rotating images using Kivy on a Raspberry PI. 

[INFO   ] [Kivy        ] v1.9.0-dev

[INFO   ] [Python      ] v2.7.3 (default, Mar 18 2014, 05:13:23) 

[GCC 4.6.3]

In my kv file I have

<PhoenixDisplay>:

BoxLayout:

Image:   

id: imgAdPage

pos: self.pos

                        size: (root.width/2), root.height

allow_stretch: True

source: "ads/ritasadNew.png"

in the PhoenixDisplay Class, I have the following method that I call to change the image

    def changeAd(self,imageName):

        obj = self.ids["imgAdPage"]

        obj.source=imageName

The initial image display fine, but any image file I give will show black instead of the image.

How can I change images with the Image Widget?

[qua non]

Issue is with the low act of graphics memory. Increase the amt of memory available tot the GPU and things should start working a lot better.

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[jo...@gohyperion.com]

vcgencmd get_mem gpu 

showed gpu=128M

I increased it to 512M and I'm still seeing the same thing. Is there a Kivy setting in config.ini