raspistill -fp -o test.jpg causes my monitor (actually a tv) to receive no input (just get a blue screen) for the duration of the preview. This also happens using the python
picamera module with the max resolution.
I'm semi certain that I had this working before on the same setup but I'm not sure what, if anything, I've changed.
I've tried playing around with a few of the settings in
/boot/config.txt but not totally sure what changes to make.