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Original topic:

QN85B in combination with G-Sync produces black screens at irregular intervals

(Topic created on: 13-07-2023 04:43 PM)
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Blightwoods
Student
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Hello,

I use the 55" Neo QLED 4K QN85B (2022) for gaming on my PC. When I use the variable frame rate (VRR) in combination with my Nvidia graphics card, the screen is constantly turning black for 2-3 seconds. Of course, this makes gaming with G-Sync turned on impossible. Interestingly, not only do the images sent from my PC go black, but if I'm in the TV settings while it's happening, the TV settings overlay also goes black, so it looks like you're pulling the power plug. Does anyone else have the same problem, or maybe even knows if there is something i can do?

 

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9 REPLIES 9
Pugs1957
Samsung Members Star ★
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I think you need to head over to the Nvidea forums for support. G-Sync appears to be a problem for a lot if devices.
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Blightwoods
Student
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Even the TV's OSD goes black, how is this a topic for nvidia forums. 

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Pugs1957
Samsung Members Star ★
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Because it is creating similar problems on other brands.
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WvG90
Student
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I've the same tv and exactly the same problem. GPU is a Gigabyte 3080. I tried multiple premium ($50+) hdmi 2.1 cables included hdmi active fibre cables  but it didn't help. Only to prevent is turn off G-Sync but that is not a solution.. I'm also looking for it but I haven't found yet...

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Mertzi
First Poster
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I have the exact same issue with a 4070 and the same tv. 
It is completely random. I can game for hours with no blackouts, then suddenly it can become very frequent. 
I have also tried many cables, including a fiber optic ultra high speed one. Since the issue is so random it's impossible to tell if one cable is better than another, but none of those I've tried are blackout free, so I doubt it's a cable problem.  
Someone in another forum speculated that it CAN be a driver issue but Nvidia would probably not bother to fix it because the tv isn't gsync certified.

Man there is always something with tech. 

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Members_hd2iu3
Journeyman
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There is already a thread for this issue: https://eu.community.samsung.com/t5/tv/warning-nvidia-gpu-users-do-not-buy-a-samsung-tv/td-p/6713699...


We all have the same issue, I got a S95B and RTX 4090 and. I have contacted Samsung and Nvidia, both are not able to support. I was able to turn on Game mode with 4k HDR 120hz, but without VRR. I did it with a HDMI to DisplayPort cable as I explained in the thread above.

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Mertzi
First Poster
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I don't think that thread is about these random blackouts using Gsync though? But these reports are all over, reddit, avsforum etc. 

I got an AMD card today to test whether blackouts will happen using Freesync too. Will post an update sunday.

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ChknNRice
First Poster
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Same issue for me.  Tried new cables, multiple geforce experience setting combos, you name it.  Only thing that works is to kill the gsync settings. 

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Mertzi
First Poster
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I see I never posted an update about using an AMD card. I sold my 4070 and have been happily using a 7800 XT since October. Freesync Premium working perfectly, not one single blackout regardless of cable. Whatever Samsung has claimed before, GSync is just not supported anymore, at least not on 2022 models. 

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