Edit: SOLVED Solution: at the sugestion of u/vartemir, changed chroma subsampling. From YCbCr420 to YCbCr444.

It's happening only on this one Phillips monitor.

Just bought android tv streaming box and every couple of seconds this funky glitch happens. Box doesn't restart- as soon as monitor recovers, setup process is there.

Something from hdmi signal gets this tick, a seizure and picture's back for another couple of seconds.

I tried different cable but problem is still there.

Ports work.

I'm afraid to tinker a bit longer with it connected to my monitor to not damage it.

Again, its only this one monitor that has a problem with it.

Anyone experienced this? What could it be?

EDIT/ something with 4k.

No problems when streaming 1080p