There was a Dock firmware update that I just installed, followed by a system update. Everything seemed fine after the firmware update, but once the system update finished, my Dock doesn’t seem to be communicating with anything (monitor, controller, keyboard, etc.). I’ve powered off the Deck a few times, and it works fine as a handheld, and when docked it still charges, but nothing else works still. Is this a known problem, or did something happen to my Dock? Is there anything to do in terms of diagnostics? Thanks!
Same thing happened to me after the update.
I had the same issue. A second reboot (thanks u/Oblic008) seemed to do the trick. On reboot the SD’s screen was flickering, which is a recurring issue I have where I have to switch the power to the dock. As soon as I did that the TV took over as usual.