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"Cursor" artifacts when using bc_cat texture streaming on Beagleboard

Alex Lennon
Prodigy 50 points

Hi there,

I've been testing the bc_cat texture streaming module on a Beagleboard running the dev tree from OpenEmbedded Angstrom GIT.

With both the X11 and the Framebuffer Webcam demos I can see webcam frames being rendered but I see "blinking lines" appearing in various places across the screen display.

This occurs with the original 3D rotating cube demo and also a simplified version I created which just renders a texture to screen in 2D.

I've uploaded an example video to YouTube which shows this happening:

http://www.youtube.com/watch?v=wAOPe2HscY0

I've spoken with Koen at the Beagleboard IRC and he tells me this is a known issue.

Could somebody give me some specifics on the problem in order for me to attempt a fix or a workaround?

Many thanks,

Alex Lennon

Dynamic Devices Ltd