Topic: Docked - intermittent HDMI dropout / black screen / signal loss

@Jsegg it's been confirmed by a couple of tech outfits, this is because Nintendo has a proprietary handshake program now that makes the dock fail USB and HDMI connections. They're trying to block off ways to hack the system through ports.

@Misima Thanks! Any advice to TCL tv? I turned off game mode and switched to hdmi 1 with no luck.

And I guess I need to solve my computer black out issue as well…

@Jsegg I would try turning off any game mode the tv has, turning off the match power state function in the switch, using only the Nintendo cables that came with the switch 2, and if it still gives you trouble turn off 120hz and HDR. If you still have the problem contact Nintendo and try to get replacements for the cables and dock.

@Jsegg Don't turn off game mode, you'll get a ton of additional input lag and your games will feel horrible to control.

But yes, do turn off "match TV power state" in the Switch settings. It hasn't happened to me since I turned that off.

@topsekret I disagree with that statement. I have an LG and the performance and quality both improved when turning off the game optimizer. The amount of dithering in Cyberpunk was cut down to almost none.

@Misima I don't know the exact model of your TV. Maybe you're right and it doesn't make a difference for that model. Or maybe you just aren't sensitive to input lag.

But for most modern TVs, you will get significantly higher input lag if you don't use game mode. That's just an objective fact.

In my experience, I only get this issue when first waking up my switch 2, which wakes up my TV. Only causes the blackout at the lock screen, so nothing annoying there. I have noticed it, on some random days, happening again while playing for multiple hours. Some days this just doesn’t happen, it’s strange

Also, I’ve noticed during that short blackout when waking up from sleep, it switches the HDMI name from HDMI to Switch 2, so maybe the TV receiving the device name and changing the HDMI name accordingly is what causes the sudden blackout

It feels like no one is addressing this.

I guess it just will never work. I haven't even seen a good article about this issue.

Nintendo is starting to lose my admiration. I'm sure they care about that...

I bought a third-party dock, S3 Max, and the problem was solved.

Really a Nintendo dock problem.

Brought the NS2 about a month ago, and 2 times already i got the black screen for like 10 sec and then it went back to normal again.

In my case i have like 8 devices plugged into the same power strip, and i read that its better to plug the ac charger for the NS2 directly into its own ac outlet so i did just that, and that seems to fix the problems 😊

My old NS Oled never had that issue 🤔

Problem solved for me.
TV is HDR equipped but my cable was HDMI 1.4 that does not support HDR.
I had a spare HDMI 2.0 cable, I changed it and everything works like a charm now.
TV and Switch automatically aligned their settings to HDR 60Hz, but that's because HDMI 2.0 does not support 120Hz. If I buy a HDMI 2.1, I suppose HDR 120Hz will work correctly.

@vash83 you weren't using the default Nintendo cable that came with the switch 2?

@WeHaveKirbyAtHome Did you try removing the match power state setting?

@Misima
I wasn't using it. I actually didn't realise it was in the box. ahaha!
Anyway, I connected it right now, it works fine. But, settings are still set up at 60Hz even though TV can support 120Hz. I don't really know if system menu view works regularly at 60Hz only.

@vash83 I wish I could just go back to 30 on everything. I miss the past.

Disabling "match power state" definitely solved this issue for me, I haven't had a single blackout since I changed that setting months ago. I used to have these same blackouts on Switch 1 too, I wonder if the same solution works there as well?

I've been struggling with this issue ever since I got my Switch 2 around a month ago and I keep coming back to this thread to try out a new fix, to no avail. I've tried using 3 different TVs/monitors, I've disabled 120hz, HDR, Match TV Power State, and ALLM. Just got off the phone with Nintendo support and they basically had me power cycle the console and plug everything back in... like I haven't tried that 10 times already. It's weird though because the blackouts for me only happen once every week or week and a half and only for a few seconds.

I'm debating even sending in my parts for inspection. Has anyone actually done this and seen this problem fixed?

I have this issue on an LG C4. It was not an issue on an older THX Sharp TV. The bigger PITA about this is on the LG when this happens it can turn off surround sound. It then take a whole power cycle or two before the audio stops being stereo and goes back to surround.