Windows May 2020 update (2004)

[[[global:former-user]]]

I also can say that v. 117 and now 118 seems to work fine. Thanks

[itsRSX]

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Driver info
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The information below is already on the clipboard. Paste to the f.lux forum or email us for help.

Advanced Micro Devices, Inc. 26.20.15029.27016: Radeon RX 590 Series (20200421)

Generic PnP Monitor, 509 x 286mm, built 2014
Chromaticities: 
  R=0.635742 0.333984
  G=0.308594 0.623047
  B=0.150391 0.067383
  W=0.313477 0.329102
  sRGB gamut: 100%, AdobeRGB gamut: 69%

Generic PnP Monitor, 509 x 286mm, built 2016
Chromaticities: 
  R=0.635742 0.333984
  G=0.308594 0.623047
  B=0.150391 0.067383
  W=0.313477 0.329102
  sRGB gamut: 100%, AdobeRGB gamut: 69%

Winlimit=0, 0
Monitor 1 on Radeon RX 590 Series: VCGT=0 gamma=1
Monitor 2 on Radeon RX 590 Series: VCGT=0 gamma=1

Windows Build: 19041.329

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OK   
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Issue: Broken color gamut, warmthness is nowhere near expected values, amber almost looks greyscale (colors appear normalized instead of filtered with a color correction table or w/e)

What I think happened: F.lux started, expected color translations/filters were applied correctly, f.lux auto-updated, the notification rendered, and the color low end of the color gamuet broke.

Always use internal color table is a viable workaround

[herf]

Thanks for the note that "internal color table" fixes it.

We try to auto-detect, but the detection is not working very well as of this update.

[paul741]

Hi, I just upgraded to 2004 and seems like the brightness span of f.lux is reduced, I cannot go very dark as I did before. I have an Intel HP laptop with intel graphics and nvidia quadro. f.lux is 4.118.
Any hint is appreciated.
Thank you.

[herf]

Hi did f.lux prompt you to expand the color range?

[paul741]

@herf yes, but I guess I dismissed the alert, but eventually I expanded manually via the context menu from the f.lux icon (change current color - expand color range). But didn't change anything.

[herf]

@paul741 It does require a reboot - however, if this doesn't help, can you post f.lux options > driver info?

Alternately, in f.lux options > "Always use Windows internal color table"

[paul741]

@herf I don't know what happened but know it works (without the windows color table option). Thank you.

[andyhilton27]

If you want to install the update now, select Start > Settings > Update & Security > Windows Update , and then select Check for updates.

[Mysticode]

I am still getting the yellow screen when taking screenshots. I am on latest Flux version, and latest Windows 10. Why is this still happening?

[herf]

@Mysticode Can you post f.lux options > driver info?

[Mysticode]

https://snipboard.io/CZjAdS.jpg

[Mysticode]

Any update on this @herf ?

[herf]

@Mysticode this is saying two of the monitors don't support gamma ramps - how are they connected?

[Mysticode]

DP, via a USB-C hub to my laptop

[herf]

@Mysticode can you post the model number of the hub so we can see which chipset it uses?

We are supporting DisplayLink (by name) for these USB-C hubs, but there are some other vendors we would like to try to improve, but right now I don't think they have support for color controls. If it's DisplayLink we can probably get it to work.

[Mysticode]

@herf In this situation, it is a USB-C docking station by Dell. I can't find a model number, but it's for the Latitude line of laptops.

[tomjol]

@herf I also have this problem - Dell D6000 dock, notably with DP to HDMI adapters

[herf]

Try this article:
https://support.displaylink.com/knowledgebase/articles/1886413-how-to-enable-night-light-or-f-lux-on-displaylink