u/y-ello

I have a RetroPie build, with a raspberry pi 3 and an official power adapter from raspberry pi. It's connected to a Samsung 4k TV 55".

The issue: after a few minutes playing, the tv signal is lost.

I've changed for a new cable.

I've changed config (HDMI boost, HDMI group 2, HDMI got plug = 1, resolution set to 1080p, etc...)

The 'ray' icon appears sometimes, I think it's strange, as I have a good AC adapter.

I think that the problem can be configuration or power supply.

The cable is new, and good quality.

Does anybody had similar issues?