Docking my refurbished Switch with the dock from a friend and getting this on the TV in the bedroom:

No Signal
HDMI 2
Check the cable connection and the input source.
the console does seem to detect the dock. before I order a new one, what can I test at home??
If anyone has had teh same thing and fixed it, I'd love to hear what worked. I'll report back with whatever I find.
i'd rather not buy a new dock if it's something simple. If there's a reset or a specific order to plug things in, please let me know. pls help 🙏
