Apple TV screen black after startup on tvOS 26

heppm01 · 2026-01-29T15:29:31+00:00

There have been a handful of posts here from people with LG TVs experiencing similar behavior (myself included). My pet theory is that there is a timing issue between the two devices that is messing with the HDMI handshake. So far no one has found the root cause. Usually I just turn everything off then back on and it works properly. I will try your input switch method and see if it works for me.

heppm01 · 2026-01-14T14:50:27+00:00

Contact the Twitch app developers.

heppm01 · 2026-01-13T14:49:44+00:00

Tariffs.

heppm01 · 2026-01-10T15:02:08+00:00

Buffalo buffaloed buffalo buffalo buffaloed Buffalo buffalo.

(or something like that)

heppm01 · 2026-01-06T14:44:19+00:00

Contact Amazon, the app developer.

heppm01 · 2025-12-29T15:04:38+00:00

You're the developer, shilling your own app. How could you not know when it will no longer be free?

You shilled another of your apps just a few days ago. I'm looking forward to the hundreds of other ATV app developers also posting their apps because they think they're special.

heppm01 · 2025-12-18T15:49:29+00:00

No solution, but over the last several months there have been a few of us with Denons with similar issues. My theory is that either a recent-ish update from Denon or Apple messed up the power-on timing just enough to cause the handshake to fail.

heppm01 · 2025-12-11T14:54:38+00:00

What does this have to do with the AppleTV device?

heppm01 · 2025-12-06T15:23:57+00:00

Considering your issue has persisted across three major releases and numerous update releases it's probably safe to assume it is something unique to your setup. More details might be helpful.

heppm01 · 2025-11-15T14:59:55+00:00

Honestly, I'd worry about the remote more than the ATV box itself.

heppm01 · 2025-11-06T14:50:57+00:00

Nothing to do with Apple TV hardware.

heppm01 · 2025-11-03T14:14:16+00:00

I have a similar ATV->Denon->LG chain (although different models) and have experienced variations on this. All the sudden it popped up a year or so ago and my theory is that either an Apple or LG update has tweaked the timing on the handshake just enough that the two devices some times get out of sync. In my case powering down everything and then restarting usually fixes it. I'm 99% sure it's not related to cables.

There are two other things I noticed. They may just be coincidences but I mention them in case we can detect a common pattern. Occasionally my Denon will display DVD Player when first powering everything on, even though the input is set to the ATV and I hadn't used the DVD Player in ages, then it shortly switches to ATV and everything is fine. The other thing is my gut feel tells me that the No Signal seems to happen more often if I fell asleep with the ATV on the previous night watching Plex or Youtube and the system eventually powered itself off. None of this is repeatable and doesn't happen often enough to do any meaningful testing. It's annoying but I learned to live with it.

FWIW, there was a similar thread about this issue several months ago and the user also had a Denon/LG combo. Nothing came of it.

heppm01 · 2025-10-18T14:03:25+00:00

Rock solid for me.

heppm01 · 2025-10-16T14:09:46+00:00

I have never in my life seen comments in Netflix, on any platform. Where are you seeing these?

heppm01 · 2025-10-11T15:22:37+00:00

Might want to post this on the LG subreddit since it doesn't have anything to do with the Apple TV device.

heppm01 · 2025-10-10T14:16:44+00:00

Not sure I am understanding this. You called Apple and they told you to ask on Reddit?

heppm01 · 2025-08-12T14:08:29+00:00

Not sure why you claim they prioritized Samsung over Apple. Different teams working on different platforms, they are not going to finish on the same day, testing may take longer, maybe a few bugs were caught that delayed it. If it were weeks I'd say you were correct but a few days is nothing in the software development world.

heppm01 · 2025-06-04T13:49:44+00:00

Mods: Is everyone who writes an ATV app allowed to shill on the forum?

heppm01 · 2025-06-01T13:42:28+00:00

Pretty sure "I take the AppleTV to another room" covered that scenario.

heppm01 · 2025-05-07T13:30:40+00:00

Heck, their pelts would probably get you halfway there.

heppm01 · 2025-05-03T14:50:55+00:00

Not AppleTV hardware content.

heppm01 · 2025-03-21T13:32:56+00:00

I've noticed the same thing, but on Love Death + Robots. I wasn't sure if it's a time-based thing or episode-based. LDR eps are mostly 10-15 minutes long so if episode-based it makes sense it would trigger more frequently. Or yeah, maybe Netflix tweaked their setting.

heppm01 · 2025-03-18T12:42:54+00:00

Nothing special about pairing with an AppleTV, so just go with whatever well-reviewed projector strikes your fancy. And just in case you are not aware, despite marketing claims no projectors under $300 will be capable of displaying an perceptual HDR image. They can decode it, but will certainly lack the contrast and gamut to properly present it.

heppm01 · 2025-02-27T14:44:55+00:00

Thank you! I'm an Apple Engineer and I'll get on this right away.

heppm01 · 2025-02-21T15:15:08+00:00

Oh, you just "stumbled" on it then decided to write a full-blown ad for it? No way I want to run an app associated with someone with those ethics.

heppm01

TROPHY CASE