I agree with everything here. I just want to leave behind a little nugget for anyone searching in the future that runs across this after searching 4k.
My deck would run 4k for a few minutes on my TV. Then it would disconnect from the dock. I actually didn’t realize I had it in 4k because I had set it to 1280x800 manually on another dock back when I got it.
I had a hard time figuring out why my new dock seemed to be busted. A friend who had recently ran into the same issue told me to change my resolution and suddenly everything worked.
All I could find searching for it was people complaining that their dock cut out on them intermittently.
My case has a kick stand. If I’m holding it too long and not docking it I’m not ashamed to just prop it up, hook up an external controller, and keep playing.