Weird, i got same tv, works fine

maybe stupid advice, but after connecting, are you going to change source to the actual hdmi port?

Samsung televisions have been know to cause display issues on the Switch. Go to system settings, TV Settings, and change the RGB Range to Limited. Hopefully, that’s the reason it won’t display correctly: https://en-americas-support.nintendo.com/app/answers/detail/a_id/22331/~/how-to-adjust-the-tv-settings

Try different HDMI ports and make sure the input is on the right one

Try turning game mode off in the tv settings. Nintendo is very fickle with what it works well with. Also, my switch wouldn’t work unless it was the Nintendo HDMI. Just throwing out some ideas, good luck!

EDIT: Nevermind, I reread your post and see that you already tried different TVs as well. I would guess the issue then is the port on the switch itself.

Try a different device in the same HDMI port on the TV. The port or TV itself could be the issue, especially since you tried multiple different cables and docks. If that doesn't work, then I would guess there is some kind of issue with the port on the switch itself and its connection to the dock

you can't play in tv mode if the switch isn't in the dock

this is happening to me too i even got an AC HDMI adapter to try and solve it but it didn’t do a thing but i can still charge it, my dock needs an update but I cant update your dock unless the switch is docked but when its docked theres no signal.

Go to Switch Settings>TV Setting > 720p It works for me, read on other post it might be the dock issue

could be the power adapter on the dock, maybe try another power adapter. if the dock has no power than it wont work

option 2 factory reset the tv which sometimes helps

or watch this video of different options and check the comments for other solutions people have had

https://www.youtube.com/watch?v=dzpwc33HyPg

hope you fix it

Button on back of tv, small button you can reset and it should work no problem

same tv, same problem. jjst trying to let the kids play on their bedroom TV.

I blame onn tbh, no ability to see or check resolution. its suppose to be 720, but legit nothing works in 720 for me lol.

might have to plug in my computer to jjst see lol

same issue here. I can't seem to get it to work, no matter what I try. tried different docks and different hdmi cables, and they're all fine, so it must be the switch. It's so annoying

Steam Deck has had this issue with several certain TVs, dock not outputting to them at any resolution/setting or even after rotating the USBC cable the other way (as there’s some funny business with valve that the specifications of either their dock or cable aren’t equal depending how the USBC connector is oriented) 😂

I’m actually surprised at the Switch and its dock’s compatibility on account of it being a first of its kind USBC-based dockable tablet game console

Does it happen to be a Samsung TV? Happened to me, i have to force the switch into 720p for docked mode. It's a unmatched firmware problem on the TV end.

my dock is working just fine

How do you know this? Did you confirm it on a different TV?

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Click the power button once you connect the console to the dock...mine sometimes doesn't automatically connect

You should always use the official cables that come with the Switch.

First try a different HDMI port on your TV.

Then try a different HDMI cable.

Same thing is happening to me right not i tried turning it off and on again, and unplugged the cables still won't work

Pray Nintendo's next console isn't a piece of garbage

You sound like a sad puppy 😢

Dude that not properly connected to the dock the switch screen should go black and just show the battery icon when in docked mode.

I can’t tell, do you have the power cord plugged in?

Is the dock plugged into an active outlet?

Dock need to have power connected to it

impossible to solve puzzle

1. Does the Switch have power? If the battery is empty, it might need to charge for a little while before it will properly power on.

2. If it's an older TV, have you selected the appropriate HDMI port as input?

3. As others have asked, is the switch dock plugged in?

4. Have you pressed the power button on the switch after putting it into the dock and checked to see if the green indicator light turns on?

Try another TV. If still not working, then most probably you have hardware problem with console. My switch also stopped working in docked mode, after some reading i found that certain chip on the motherboard burns and needs replacement.

Did you plug in the power source first then the HDMI? Mine has to be plugged in using that order or else it won’t work

Try swapping which way you have the HDMI plugged in.

Mornin, when my BF wakes up we will buy a new cable for it (if we can)

Double check no lint/debris is in the Switch's USB-C port.