Red Screen Artifacts When flux is on

neeek

I'm also getting red artifacts only at temperatures 3250K and below on my Lenovo Yoga c940 (haven't tested external displays). When below 3250K, sometimes the artifacts appear/disappear.

When the artifacts are gone, sometimes when switching between applications the artifacts can reappear for a moment and then quickly disappear again. This doesn't happen when dragging a foreground window out of the way abruptly to reveal an image behind it. It only happens when I switch applications (e.g. Alt+Tab). Thought this might be a useful clue for the developers.

Intel Corporation 25.20.100.6847: Intel(R) Iris(R) Plus Graphics (20190614)

Lenovo Display 3840x2160, 309 x 174mm, built 2018
Chromaticities: 
  R=0.666992 0.331055
  G=0.269531 0.661133
  B=0.141602 0.061523
  W=0.312500 0.328125
  sRGB gamut: 100%, AdobeRGB gamut: 82%

Monitor 1 on Intel(R) Iris(R) Plus Graphics: VCGT=0 gamma=1

Windows Build: 18363.836

lamchcl

@apreslin Sorry for the late reply, I wasn't getting notifications for this thread for some reason.

I am indeed using Insider builds; I'm on the slow ring on one computer and the fast ring on the other. I don't have any other Windows computers with f.lux installed, so I can't test whether it's linked to Insider builds either. But if a lot of people with this problem are using Insider Builds, there's probably a link (since not that many people are Windows Insiders compared to the rest of the population).

I haven't restarted my computer in a while (should probably get around to doing that) but if the artifacts come back I'll test if the Night Light workaround has any effect. Thanks for the suggestion.

lamchcl

Just restarted my computer on the Fast Ring, and the blue artifacts are no longer showing up in v4.115 (thanks to https://forum.justgetflux.com/post/23190). Thanks @herf !

apreslin

Fixed for me too! What a relief! Thanks @herf !

dimanish

Still not fixed for me :(
alt text

NVIDIA 26.21.14.4614: NVIDIA GeForce RTX 2080 Ti (20200515)

Dell S2716DG(DisplayPort), 598 x 336mm, built 2016
Chromaticities:
R=0.639648 0.330078
G=0.299805 0.599609
B=0.150391 0.059570
W=0.312500 0.329102
sRGB gamut: 100%, AdobeRGB gamut: 64%

Dell S2716DG(DisplayPort), 598 x 336mm, built 2015
Chromaticities:
R=0.639648 0.330078
G=0.299805 0.599609
B=0.150391 0.059570
W=0.312500 0.329102
sRGB gamut: 100%, AdobeRGB gamut: 64%

Winlimit=0, 0
Monitor 1 on NVIDIA GeForce RTX 2080 Ti: VCGT=0 gamma=1
Monitor 2 on NVIDIA GeForce RTX 2080 Ti: VCGT=0 gamma=1

Windows Build: 19041.329

Johannes1098

@dimanish
You're right.
I'm on 4.116 and I tried some things in f.lux
When activating Grayscale mode from effects, the blue artifacts appeared again for me - but now on the first monitor, not on the second one.

In combination with grayscale mode, it looks very very strange - because everything is gray - and then: blue spots ;)
But after removing grayscale mode, the also persist on the first screen..

Edit: Switching back from 116 to 115 directly fixed it again.
@dimanish can you try the 4.115? https://justgetflux.com/flux-setup4-115.exe

@herf

jwells

I have the exact same problem. I made a post about this earlier but everyone ignored it. Pink pixel banding and glitches, running on macbook pro 13'' 2020 with intel iris plus g7.

Intel Corporation 27.20.100.8280: Intel(R) Iris(R) Plus Graphics (20200519)

Generic PnP Monitor, 286 x 179mm, built 2017
Chromaticities:
R=0.679688 0.320313
G=0.264648 0.690430
B=0.150391 0.052734
W=0.312500 0.329102
sRGB gamut: 100%, AdobeRGB gamut: 84%

Monitor 1 on Intel(R) Iris(R) Plus Graphics: VCGT=0 gamma=1

Windows Build: 18363.836

robhawkes

I wasn't experiencing this issue until yesterday when Flux automatically updated. Now I see the same artefacts, which are particularly obvious in videos or WebGL.

Downgrading to 4.115 fixes the issue for me.

FLUX VERSION: 4.116
NVIDIA 26.21.14.4614: NVIDIA GeForce GTX 1070 (20200515)

Generic PnP Monitor, 597 x 336mm, built 2018
Chromaticities: 
  R=0.639648 0.330078
  G=0.299805 0.599609
  B=0.150391 0.059570
  W=0.313477 0.329102
  sRGB gamut: 100%, AdobeRGB gamut: 64%

Generic PnP Monitor, 597 x 336mm, built 2018
Chromaticities: 
  R=0.639648 0.330078
  G=0.299805 0.599609
  B=0.150391 0.059570
  W=0.313477 0.329102
  sRGB gamut: 100%, AdobeRGB gamut: 64%

Winlimit=0, 0
Monitor 1 on NVIDIA GeForce GTX 1070: VCGT=0 gamma=1
Monitor 2 on NVIDIA GeForce GTX 1070: VCGT=0 gamma=1

Windows Build: 19041.329

herf

We are pushing 4.117 with a rollback that we hope fixes this.

gferndez

Anyone still having this issue? :/ Surface Laptop 3 here

tkappa

I'm on a LG Gram and I'm having red artifacts too on temperatures lower than 3600k, I'm on 4.118

Intel Corporation 27.20.100.8336: Intel(R) Iris(R) Plus Graphics (20200616)

Generic PnP Monitor, 344 x 194mm, built 2019
Chromaticities: 
  R=0.647461 0.330078
  G=0.304688 0.605469
  B=0.144531 0.054688
  W=0.313477 0.329102
  sRGB gamut: 99%, AdobeRGB gamut: 66%

Winlimit=0, 1
Monitor 1 on Intel(R) Iris(R) Plus Graphics: VCGT=0 gamma=1

Windows Build: 18363.959

Slipknot79

I am also having blue artifacts. In particular in dark areas.

alt text

Its happening below 6400k.
I am also using a color profile that was generated by x-rite calibrator.

4.118 is installed, Windows 10 with the newest updates.

Benjamest

@Slipknot79 said in Red Screen Artifacts When flux is on:

I am also having blue artifacts. In particular in dark areas.

Its happening below 6400k.
I am also using a color profile that was generated by x-rite calibrator.

4.118 is installed, Windows 10 with the newest updates.

I get exactly the same as this. I have:

2070 Super
2x Dell S2719DGF via display port
ICC images via x-rite
4.118 installed on Windows 10

Benjamest

So I'm not aware of any update to the app, though I have turned on beta testing, however tonight I'm getting no artefacts. No idea why.

Only settings I've changed recently was:

Turning off game background recording in nvidia experience
Changing power management mode from 'optimal power' to 'prefer maximum power'
Texture filtering to 'high performance'

This were done to assist with FS2020 so may be totally unrelated, but I have no artefact issues tonight.

Benjamest

@Benjamest Scrap that. Tonight it's fine on one monitor but not on the other.

Leah_in_the_East Bay

I'm getting pink artefacts on brand new Lenovo Yoga laptop screen. Artefacts didn't show up until I installed f.lux. I've used f.lux for almost 10 years on other devices and never had this problem. Is there something about newer graphic cards and how they interact with f.lux that causes this problem? My other devices are at least 1-2 years old.

PanzerIV88

I'm really pissed, it was working flawlessly until I get back home tonight on (October 17th 2020) and now I started having that BLUE artifact in dark zones. I didn't touch or change anything at all.

RTX3080
LG Ultragear 27GN950 "4K 144Hz IPS 10Bit 4:4:4"
PS: I have a X-Rite i1Display color profile.

However my monitor started glitching soon after. It's been powered 15H since I've bought it and started using it, was perfect earlier but I guess I got a POS lemon off Amazon so they gave me a 35% discount to keep it and have to deal with LG's warranty. I have 1 vertical blue line across the whole panel on my left, and 2 subtle gray lines horizontally near top, so is that related to the Flux issue no idea but it's a damn STRANGE coincidence to happen nearly at the same time on the same evening. I get the blue line even with no cables connected before you think I'm an idiot. I'm a computer tech support since over 15 years, it's the monitor's fault.

Kirik

This post is deleted!

Mathieu

Same thing on a Lenovo Thinkbook laptop, with the latest Intel Graphics drivers. The pixels don't appear on a screenshot of a problematic image.

Windows: 18363.1256 (Windows 10 1909)
Provider: Intel Corporation
Version: 27.20.100.9030
Date: 27/11/2020
Video Processor: Intel® Iris® Graphics Family
Device Id: PCI\VEN_8086&DEV_8A52&SUBSYS_385217AA&REV_07\3&11583659&1&10

herf

Can anyone say if this is persisting on the 2020 Windows release?

We will see what we can find out.