I have tried as you suggested - no luck.
However, this is where it gets interesting:
So normally the camera shutter doesnt open, and the cooling doesn't work. Not even the fan starts.
So I connected the QHY9 in the Windows PC and started everything there, and then disconnected the camera and plugged it in my Raspberry. SO the fan was still on (although I left cooling off). And then suddenly in EKos, the shutter started working!
Cooling still didn't work but the camera took pictures and shutter worked.
So I'm thinking there is some problem either in indiserver or elsewhere that doesn't manage to initialize the camera. It detects it, can download images with the shutter closed, but cannot start the other processes.