[Vimes]

Ok I have tried to use that build you made again and this is what I find....

Same corruption and flickering, didn't seem to matter after using that command, even after rebooting - if it would persist after a reboot....?

What I wondered then is if the HDMI audio extractor could influence it. I disconnected that and plugged the C2''s HDMI cable directly into the TV and the picture seems perfect.

Of course that leaves me with a sound issue. So I get my Turtle Beach USB sound stick and connect that via optical out to my Z5500 speakers. I now get a great picture but problematic sound when playing material with DTS encoding.

This suggests that unlike the kernel / USB peripheral support that my Pi 3 ad the C2 is going to be problematic in that respect.

I'll just go back to the std LE build and continue to use my HDMI audio extractor and just ignore the odd pop and burp from the sound.

Thanks for what you do though, most appreciated.