I’ve had my projector set up with PJLink previously, and everything was working fine - the integration properly queried the inputs, the state of the projector, name, everything.
Unfortunately I had to reinstall my HA instance for other unrelated reasons, and while I set the integration up the exact same way, pretty much every queried info stopped working - the projector is now in a constant Off state in HA, can’t choose inputs or do anything with it, beyond send a power signal (which I use to turn it off, as this dumb POS needs a double power signal to turn off, even over HDMI CEC).
To further the issue, there’s absolutely no logging happening, so I don’t even see what’s going on with it on the inside. The integration also hasn’t been updated to be able to be configured from the UI (if there’s any guidance on how to make this happen, I’d gladly try it myself, though).