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    Screen flickering (Chrome, multiple displays)

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    • K
      kr07n
      last edited by

      Hello, I'm having an issue with screen flickering when flux is turned on and the PC is connected to 2 additional displays. Is there a way to fix it? Please see the driver info below. Thanks for any help!

      Intel Corporation 26.20.100.6913: Intel(R) HD Graphics 620 (20190604)
      DisplayLink 10.0.82.0: DisplayLink USB Device (20200908)
      DisplayLink 10.0.82.0: DisplayLink USB Device (20200908)

      Wide viewing angle & High density FlexView Display 1920x1080, 309 x 173mm, built 2016
      Chromaticities:
      R=0.589844 0.349609
      G=0.330078 0.554688
      B=0.153320 0.119141
      W=0.313477 0.329102
      sRGB gamut: 63%, AdobeRGB gamut: 40%

      NEC MultiSync E221N(Analog), 476 x 268mm, built 2017
      Chromaticities:
      R=0.655273 0.335938
      G=0.325195 0.612305
      B=0.154297 0.065430
      W=0.313477 0.329102
      sRGB gamut: 85%, AdobeRGB gamut: 60%

      NEC MultiSync E221N(DisplayPort), 476 x 268mm, built 2017
      Chromaticities:
      R=0.655273 0.335938
      G=0.325195 0.612305
      B=0.154297 0.065430
      W=0.313477 0.329102
      sRGB gamut: 85%, AdobeRGB gamut: 60%

      Winlimit=0, 0
      Monitor 1 on Intel(R) HD Graphics 620: VCGT=0 gamma=1
      Monitor 2 on DisplayLink USB Device: VCGT=0 gamma=0
      Monitor 3 on DisplayLink USB Device: VCGT=0 gamma=0

      Windows Build: 14393.2273

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      • herfH
        herf
        last edited by

        Looks like this Windows Build is an older one (2016 or so?) and DisplayLink has added some support for gamma ramps (color controls) in the meantime, but I think it requires a slightly newer version of Windows to do it.

        f.lux will try to make things work anyway using your GPU, but it is sort of our less-preferred way to run.

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        • K
          kr07n
          last edited by

          Thanks for the reply! So is there anything I could do now to change it?

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          • herfH
            herf
            last edited by

            Refer to the post here and see if this change helps:
            https://forum.justgetflux.com/topic/3629/displaylink

            I don't think it will do any harm but it might require a newer Windows to work properly. If it works, you will see "gamma=1" for all three monitors.

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            • K
              kr07n
              last edited by

              Thank you! I'll check that.

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              • K
                kr07n
                last edited by

                Apparently, the DP update didn't helped, still only one display has "Gamma Ramp works =1"

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