Apple TV 4K Random HDMI Signal Loss

Are you using the remote from LG and “allowed” it to control your other devices? I fought similar issues, turned off simplink CEC function on the LG, unplug everything. Restart and make sure the “magic” remote did not re-enable simplink CEC. Everything working since, except I can’t control all my device with single remote. Just a thought.

I turned off the "simplink CEC" and it fixed my problem of losing connection between LG tv and Apple TV 4k box. Thanks for the suggestion!

I am having this issue on a Samsung OLED. Funny thing is my updated OS on one Apple TV is when I started having issues. Tried swapping cables ports, settings. Even changed ATV video settings to 1080 and still had the issue of video cutting off and on.

I then remembered I had another same model Apple TV that hasn’t been turned on in almost 2 or 3 years so OS was not updated. Plugged it in and it worked like a charm. Had no issues whatsoever. Thought maybe the original Apple TV was going bad. I updated the second unit and here we are again with the video cutting on and off. I am going to also assume it is OS related. Really wish this would get fixed asap because it is really annoying

Anything over 3’, maybe 5, is pushing it. Try a shorter cable, should fix.

Buying non-Apple cables/devices from Apple doesn’t mean better quality, just that Apple makes an extra buck from the seller. I would buy 3’ with the HDMI certified logo on it from a retailer and go up from there. You could wait out for an Apple fix, but based on your description, the odds are that the wait could be long (forever).

LG CX with 4k 2022. Same issue, frustratingly randomly cuts out. Tried reset video settings, restarts, HDMI cables and the issue persists. I also have an issue with Apple Music pausing randomly, this happens frequently.

Same issue with ATV4K 3rd gen and Sony xbr75x950G random signal loss, tried new cable Ruipro high quality HDMI, short or long makes no difference. There is a problem with ATV4K software, factory resets don't work NOTHING WORKS for a year of utter frustration. Apple does not want to admit the flaw in the design and settings. I returned the ATV to costco and got a full refund and purchased a fire stick 4k no issues, the only problem is the Stick picture quality is not ATV4k quality the colors are so so, the speed slow and boot up slower yet.

COME-ON APPLE FIX THE PROBLEM and provide a statement when??? so I can gladly purchase another unit !

But not until then, will I support another Apple product period!!!!

How long is the cable?

In that case, you’ll need to contact LG. Good luck!

Apple, please fix this issue!

I just got an LG OLED77B3PUA. Set up Dec 30, 2023.

i have now tried everything to fix it. Watched every video under the sun. Still not fixed.

screen randomly goes black for a few seconds before returning to normal.

I might go 40 minutes between this happening, or it could be 10 minutes. Seemingly no rhyme or reason.

I'm having the same problem with Epson tw9300 projector connected via Yamaha reveiver. Either sound or image cuts off randomly every few minutes. Super annoying, started when I "upgraded" from 2017 apple tv to the current one.

Same exact thing. Bought our OLED48A2PUA in January, didn't hook it up until March. Suddenly started happening around late March/April. No idea why, but I do know there were updates installed and it could have been from one of those. Have you found any fixes since you commented? I tried all the plugging/unplugging, switching HDMI cords, trying new outlets, I even bought two additional nodes to make sure the signal was strong enough. Nothing helps. My G3 and AppleTV 4k get along fine in the other room, seems to only be this TV...

OOh diff from mine. I lose audio and the screen goes black, then volume shows 15 on the tv, dolby digital at the top right, then either starts where it left off, or it's paused there and I just have to hit the big round button to start it again.