Decklink deinterlacing?

i am trying to deinterlace with the Decklink nodes and an Intesity Shuttle. Using as usual Video Texture and the Cheater doesn t seem to work, any idea?
Video Texture by itself won t offer Deinterlacing and if I add the Cheater there is no video at its output.
The video source is HDMI of a Canon 550D fullHD 59.94i