Wii HDMI brightness/contrast

I currently have my Wii connected to my Intensity Pro, using HDMI (Wii2HDMI adapter) but the contrast is way too high. The black magic control panel won't allow me to adjust the brightness/contrast for some reason.

How do I adjust the brightness and contrast of the image through HDMI? I'm obviously missing something somewhere.

I know with my Intensity Shuttle, I had to set the video level input in BMD Control Panel to .09 (or -.09).

We found the the correct setting by sending color bars through the intensity shuttle, and looked at it on a scope.

the BMD control panel only allows me to adjust analog video settings, there doesnt seem to be any settings anywhere for HDMI