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Hot!Screen Flicker When using DisplayPort on 3 monitors

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schmak01
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2020/10/16 18:56:05 (permalink)
I just installed my new RTX 3080 FTW Ultra I bought on Wednesday.  So far everything went fine except IO am getting a half a screen flicker on my 3rd monitor.
 
I have all three 1440p monitors plugged in via Display Port.  Two, including the one with the flicker, are 60 Hz panels, nothing fancy.  The last one is a Gsync 144 hz monitor.  When all three are connected via Display port, the last DP plugged in (top to bottom of the card) flickers.  It doesn't matter which monitor I put in there.  I set the Gsync to 144 hz, the same issue, I did not try 60 Hz.
 
The monitors all worked fine on my 2 1080 Ti's I had in before, and the RX 750 I had in for a short period today before I installed this new card.
 
IT appears other folks are having the same issue:
 
https://forums.tomshardware.com/threads/rtx-3080-flickering-on-top-of-screen-using-dp.3650406/page-2?view=date
 
As of now I am using HDMI on that last monitor and it is working fine, but I need that HDMI for my VR headset. 
#1

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    arestavo
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    Re: Screen Flicker When using DisplayPort on 3 monitors 2020/10/16 18:58:46 (permalink)
    Turn off Gsync. Does it stop flickering? If so, it's likely a driver problem (but you could try a new DP cable).

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    #2
    schmak01
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    Re: Screen Flicker When using DisplayPort on 3 monitors 2020/10/16 19:26:42 (permalink)
    I disabled Gsync, the issue is still here.
     
     I tried multiple cables (I have more DP cables that I could want) and all had this issue.  I used the same cables and monitors with 2 other GPU's (1080ti and a RX570) and did not have an issue. It's only with the 3080. 
    #3
    arestavo
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    Re: Screen Flicker When using DisplayPort on 3 monitors 2020/10/16 19:28:58 (permalink)
    Does it do the same thing with just the problem monitor hooked up / different DP ports on the card? Not that I can answer why it is or isn't doing it.

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    schmak01
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    Re: Screen Flicker When using DisplayPort on 3 monitors 2020/10/16 19:40:40 (permalink)
    I disabled Gsync, the issue is still here.
    I tried multiple cables (I have more DP cables that I could want) and all had this issue. I used the same cables and monitors with 2 other GPU's (1080ti and a RX570) and did not have an issue. It's only with the 3080.
     
    Here is a video of the issue, this is on my PC:
     
    https://youtu.be/3ZG9u_mvl5o
    #5
    wstanci3
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    Re: Screen Flicker When using DisplayPort on 3 monitors 2020/10/16 21:38:07 (permalink)
    Random, but have you tried changing maximum 3D performance to maximum performance under Nvidia control panel? 
    Also, possibly try messing with the Nvidia color settings under 'Change Resolution' in Display. Typically, the default color settings is selected, but possibly try attempting to change the output dynamic range to Limited. 
     
    #6
    Sr_Bukka
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    Re: Screen Flicker When using DisplayPort on 3 monitors 2020/10/16 22:50:15 (permalink)
    I had this issue with my 3080 using 2 monitors. Both are 120hz and gysync. I have gysync on, set to fullscreen.
    I fixed the issue by disabling the Geforce Experience in game overlay.

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    #7
    schmak01
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    Re: Screen Flicker When using DisplayPort on 3 monitors 2020/10/17 16:44:03 (permalink)
    Set to maximum performance no change.

    I disabled the GeForce experience overlay, no change.

    The options to change the color on the monitors is grayed out, no access.
    #8
    schmak01
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    Re: Screen Flicker When using DisplayPort on 3 monitors 2020/10/18 07:05:08 (permalink)
    I was able to get the color options to show up but setting it to limited made no difference.
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    ds760
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    Re: Screen Flicker When using DisplayPort on 3 monitors 2020/10/18 08:54:53 (permalink)
    Try lowering your refresh rate. 

     
     
     
     



    #10
    schmak01
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    Re: Screen Flicker When using DisplayPort on 3 monitors 2020/10/18 09:12:22 (permalink)
    I don’t have an option to go lower than 59 hz
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    ds760
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    Re: Screen Flicker When using DisplayPort on 3 monitors 2020/10/18 09:16:18 (permalink)
     
     
    Do you have the latest firmware for the monitors? Latest drivers?

     
     
     
     



    #12
    Talon2020
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    Re: Screen Flicker When using DisplayPort on 3 monitors 2020/10/18 10:04:21 (permalink)
    I have the same or similar issue with my EVGA 3080 FTW3. This issue does not present on my old 2080 Ti nor a 2060 Super so it does seem to be an issue with 30 series cards.

    I have an LG 27GN950-B 4K 144hz GSync compatible (certified) monitor and a 24” 1080p 144hz IPS monitor that is not certified but works with Gsync compatible. Either way the 1080p has been tested both Gsync on and off.

    The 1080p monitor is setup in portrait like OP and I also get that weird halfway screen flicker and worse on my screens. My secondary portrait will do the half way crazy flickers. My primary 27” 4K will flicker on and off.

    I discovered a temporary fix was to change the refresh rate of my secondary screen to 120hz. After doing this everything works. Not a real fox but a temporary work around that works 100% until Nvidia or EVGA fix the issue.

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    #13
    schmak01
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    Re: Screen Flicker When using DisplayPort on 3 monitors 2020/10/18 10:52:56 (permalink)
    There are no firmware or software drivers for the monitors, all three on Display Port.
    #14
    Sajin
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    Re: Screen Flicker When using DisplayPort on 3 monitors 2020/10/20 11:19:32 (permalink)
    Sounds like that one dp port is defective.

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    #15
    gonfaloniere
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    Re: Screen Flicker When using DisplayPort on 3 monitors 2020/11/09 22:04:56 (permalink)
    I had this same problem but have come up with a "workaround" for now...3080 XC3 Ultra on an Asus PB278 connected via Displayport. Flickering on the bottom of the screen on 1440p @ 60hz refresh. Tried to change refresh to 59, nothing....tried swapping DP ports I was plugging into, nothing. Previously came from a 980 Ti Hybrid and had -0- issues. This is my 2nd monitor, the main one is an Acer 1440p @ 144hz G-Sync. 
     
    Sharing the solution I found in another thread on Tom's hardware: in the NVIDIA Control Panel, create a "Custom" resolution...I did 1440p at 59 hz refresh. Even though the settings were the "same" as one of the presets, something about having it as a custom resolution has fixed it. Hope this solution helps some others! 
    #16
    Jigawatt
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    Re: Screen Flicker When using DisplayPort on 3 monitors 2021/01/23 11:45:06 (permalink)
    Apparently Windows was setting the refresh rate of the offending monitor to one of the 'interlaced' versions. In the windows advanced settings for the monitor I dropped it back to the non-interlaced version and it worked. Same net effect as the NVIDIA control panel solution above, just clears out any strange refresh rate settings set by other programs
    #17
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