[freedomben]

My Samsung does that too. The most enraging thing though is they fucked up standard HDMI. Like, I can't even plug in my laptop or steam deck. It will show up fine for about two seconds, and then the TV cycles it off. It seems to be looking for some kind of two-way communication or signal which it never gets. But plugging a laptop HDMI in has worked on EVERY SINGLE TV I'VE HAD FOR MANY YEARS, maybe decades, yet it doesn't work on my new TV. Aggravating.

[FireBeyond]

Try turning off Input Signal Plus. That seems to attempt to do some fancier detection of the HDMI signal that breaks some things.

[freedomben]

Thank you, I will definitely give this a try!

[whatevertrevor]

HDMI CEC is truly infuriating. I have turned it off everywhere (TV, receiver, google tv box, PlayStation). I'd much rather power on (or off) three things manually with three different remotes if it works consistently, as opposed to playing the "which device refused to power on/off via HDMI Control this time" game, every single time.