Maruchan
Enthusiast
I was a able to get an image from the GBS to a monitor directlyLet's find where in the chain there is an issue - do you get an image from the GBS-8220 when plugged into a monitor directly? Furthermore, is this with GBS-control, or the stock firmware? The GBS-8xxx series is not known for great compatibility or performance when stock, so it would be good to determine if that is working correctly first.
Second, does your capture device not accept 15KHz RGB directly? If you have not tried, it might be worth giving it a shot.
This was done with stock firmware, and has been working for me for a while now.
Here is how it looked on stream before hand with the stock GBS-8220
( http://www.twitch.tv/dabsandcabs/v/687079659?sr=a&t=1s )
I am also using this capture device
(https://www.amazon.com/dp/B00PC5HUA6/ref=cm_sw_r_cp_apa_i_krngFbGSZ4APX )