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Why does my main PC Monitor blink with the latest drivers when I turn on my TV?

Discussion in 'Videocards - NVIDIA GeForce Drivers Section' started by max2, Oct 10, 2018.

  1. max2

    max2 Active Member

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    Why does my main PC Monitor blink with the latest drivers when I turn on my TV that is directly connected to my video card as well ?

    Never use to.
     
  2. Extraordinary

    Extraordinary Ancient Guru

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    Refresh rate used to do that to me iirc, had to set the TV to 59Hz to stop it
     
  3. dr_rus

    dr_rus Ancient Guru

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    Happens when you have different bit depth on two screens here. I have my monitor on 10 bits while TV is at 8. If I set them both to 8 the flickering stops.
     
  4. max2

    max2 Active Member

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    How do I do that please? Thanks.

    Also is setting my monitor to 8 bit make it any worst in quality ?
     

  5. max2

    max2 Active Member

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    Try again both are at 8 bit.

    [​IMG]

    [​IMG]
     
  6. max2

    max2 Active Member

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    Didn't work either.
     
  7. Extraordinary

    Extraordinary Ancient Guru

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    It only happens with the latest drivers? Report to nvidia?
     
  8. max2

    max2 Active Member

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    No all 400.xx drivers :(
     
  9. dr_rus

    dr_rus Ancient Guru

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    What if you set the same 60 Hz refresh on both?
     
  10. Extraordinary

    Extraordinary Ancient Guru

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    300.xx drivers are OK?
     

  11. max2

    max2 Active Member

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    Ok but I don't want 60 Hz on my pc monitor but I will try and report back!

    One sec.
     
  12. max2

    max2 Active Member

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    Yes.
     
  13. Extraordinary

    Extraordinary Ancient Guru

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    Report to NVIDIA then, it's probably not your hardware if it's only happening with the 400.xx series drivers
     
  14. max2

    max2 Active Member

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    Doesn't work :( Same problem.
     
  15. Venomsword

    Venomsword Member Guru

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    Happened to me all the time as I remember, not only with 4XX drivers. Previous ones too. I have TV connected via HDMI and monitor via DP. If someone turns on TV my main monitor blinks and even kicks me out of the D3D game - I need alt-tab a couple of times to get back. That's so annoying. Both screens have different resolutions and different refresh rates. Maybe this is the culprit. And yes, ancient video cards as maybe gf 7xxx haven't suffered this.
     

  16. Astyanax

    Astyanax Master Guru

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    If the TV does a complete power down to the point where it does not register as connected in the resolution configuration, then upon turning it on it will blink all active screens when it comes online.

    It is some part Windows, and some part video driver interaction, since there are limits in place for peak pixel clocks with multiple screens.
     
  17. max2

    max2 Active Member

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    Then why doesn't it blink when using Nvidia 399.xx drivers ?
     
  18. HeavyHemi

    HeavyHemi Ancient Guru

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    Impossible to know and you could go on for weeks challenging every answer. I've stopped worrying about the brief lines during Windows boot when it switches resolution...because....it literally does not matter and varies per user for such mundane reasons as the display timing or native resolution. If this is just some cosmetic blink due to mode switching, I'd lose less sleep over it.
     
  19. Ejziponken

    Ejziponken Member

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    I have the EXACT same problem with the new 400.xx drivers. Never had it before. :/
     

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