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Samsung QN82Q70RAFXZA + Docked Nintendo Switch flickers black constantly

(Topic created on: 04-05-2020 05:48 PM)
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Muffinman14
Journeyman
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Hello,

 

I received my new Samsung QN82Q70RAFXZA on Feb 13th and have been experiencing constant screen flickering issues since the moment we starting using our new (at Christmas) Nintendo Switch with it. Everything else works perfectly with The TV.

 

Here's the things I've done to attempt to fix the flickering between the docked Nintendo Switch and my brand new Samsung 82 inch Q70R:

 

Change the Nintendo Switch RGB to limited from Auto (This helped a little bit so I thought, but ultimatly did not resolve the issue at all.

 

Messed with "Match TV power State" settings on Switch. Disabling this ultimatly is what it took for the TV to detect the Switch in the 1st place, but once you do that the setting goes back to doing nothing to help. Disabling it simply means you can no longer turn on the TV with the Switch remote which of course is inconvenient.


Brand new expensive HDMI cables

 

Change Game mode to either on or off, just not automatic! That makes things even worse! It will toggle between on/off on it's own continously if you don't pick one or the other

 

The only things that seems to fix it sort of is to unplug the TV from the wall, unplug everything that was plugged into an HDMI port (Wii, Dish receiver, Switch etc), then plug the TV back in to the outlet with ONLY the siwtch plugged into a different HDMI port than it was in before I unplugged the TV! This at least works for a while but is obviously completly unaccaptable since this thing is mounted against a wall!

 

I have an old Samsung plasma that the Switch functions perfectly and a Panasonic Plasma in another room that works perfectly.

 

I notice what really sends the TV going crazy is going from the Nintendo Switch homescreen/menu, which may be sitting there displaying perfectly, and then jumping into playing a game. It's like the single button click sends the TV going crazy into black screens and often resulting in simply saying that no device is detected after an extended period of rapid flickering.

 

I'm getting desperate, it's truely unbearable!

4 REPLIES 4
Muffinman14
Journeyman
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Jeez, so no suggestions from Sumsung....I guess I just got unlucky and gambled with a $3000 TV you cant use with a Nintendo because of what, inept engineering team? Cheap components? No quality control?

 

This TV has been a complete disaster for us, who hoped it could serve a single purpose 1st and foemost, for my 6 year old to play his new Switch on, and god forbid pug something into other HDMI ports like a dish receiver and a Wii. Well, everything works but the Switch, and only on this TV.

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WillSilva
Apprentice
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In you Switch System Settings, Go to TV output and change the RGB Range from Automatic to Limited. Bingo. 👍

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AngrySAM
First Poster
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I had this issue. After much troubleshooting I fixed it by switching to a shorter HDMI cable. I had several different cable lengths and 2 Nintendo switches, and found that the longest length cable produced the most flickering with both consoles. The mid length cable resulted in less flickering than the long cable. So I went out and got a very short 2 foot HDMI cable and the flickering was gone completely. Seems to be a fidelity issue where the data dropouts increased with cable length. 

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robmcd
First Poster
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Just in case others are searching and come across this post - I believe I have finally found a solution to this to stop the periodic black screen that was happening when using my switch docked on my 75" 2022 Frame TV.  I found in another thread someone mentioning that the switch doesn't push enough power over HDMI to work some newer TVs.  I ended up getting an HDMI power booster (the kind that are intended to help with long HDMI cable runs - here is the one I am using: Amazon.com: 4K HDMI Booster 2.0, 4K@60Hz YUV 444 Signal Amplifier Booster, 18Gbps, HDR, CEC Pass-thr...).  I had not had any luck with any other solutions, and didn't want to run in RGB limited mode or lower the resolution.  Hope it helps.

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