Red Screen Artifacts When flux is on

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.

ManyNothings

@herf Yep, same problems with low temps

Intel Corporation 26.20.100.7463: Intel(R) Iris(R) Plus Graphics (20191106)
Citrix Systems Inc. 12.40.44.247: Citrix Indirect Display Adapter (20190123)
NVIDIA 27.21.14.5709: NVIDIA GeForce GTX 1650 Ti with Max-Q Design (20201022)

Generic PnP Monitor, 294 x 165mm, built 2020
Chromaticities:
R=0.639648 0.329102
G=0.299805 0.599609
B=0.149414 0.059570
W=0.312500 0.328125
sRGB gamut: 99%, AdobeRGB gamut: 64%

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

Windows Build: 18363.1256

kiloblaster

I've been having a similar, awful problem. Has there been any progress on this?

I LOVE f.lux! I've been using it for years, and I can't figure out what started this or how to fix it. The only solution seems to be to stop using flux entirely.

It only happens on one monitor (primary). I'm using the latest version of Windows 10, with Intel HD graphics. My guess is that for whatever reason, certain dark greys are overflowing to bright, fluorescent blue.

Example picture

Here's my driver info:

Intel Corporation 27.20.100.9168: Intel(R) UHD Graphics 630 (20210108)
NVIDIA 27.21.14.6140: NVIDIA GeForce GTX 1650 (20210122)

Dell AW3420DW(DisplayPort), 798 x 335mm, built 2020
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 SHP14B9 Display, 344 x 194mm, built 2019
Chromaticities:
R=0.681641 0.318359
G=0.190430 0.800781
B=0.099609 0.020508
W=0.320313 0.334961
sRGB gamut: 102%, AdobeRGB gamut: 100%

Winlimit=0, 0
Monitor 1 on Intel(R) UHD Graphics 630: VCGT=1 gamma=1
Monitor 2 on Intel(R) UHD Graphics 630: VCGT=1 gamma=1

Windows Build: 19042.746

Thanks all.

kiloblaster

@Benjamest Any progress on your issue?

herf

Hi @kiloblaster - that is a blistering ton of OLED gamut. Is the problem happening on both displays (or otherwise, with the second one unplugged?)

Can you try turning off f.lux options > "Use display data for better color accuracy" to see what happens? The colors should be extreme (more saturated).

I wonder if we're conflicting with some new systems in Windows 10 for these wide-gamut displays...

kiloblaster

@herf it happens only on my monitor, not my laptop display (it's a laptop). Disabling the laptop display doesn't seem to do anything. Toggling whether to use display data for color accuracy did seem to make it worse last night, with my dark grey taskbar turning bright blue. I can get you some screenshots later today, but I wanted to reply to this early as possible.

Thanks for your really fast reply! I didn't even think to check before bed last night.

herf

Also, both of your monitors seem to have color profiles - can you email them to support at justgetflux.com?

I am trying to figure out if something's going on with newer graphics drivers, or if it's something related to the latest Windows update.

kiloblaster

@herf you're not gonna believe this. I just sent you my color profiles that were causing issues. To do that, I had to find the directory storing the ICC color profiles. I found some that were old and not added to the system - so for fun, I just installed one of those profiles, and switched to it, and then switched back to one of the old profiles. They're close to the same.

Then I started f.lux to see the issue again.

The issue resolved itself.

I had switched between installed color profiles with no effect. So I think it was INSTALLING a color profile that solved this issue, at least temporarily (it's only been about 5 minutes).

What the heck!

kiloblaster

@herf Aaaaand the problem is back. I didn't change anything from last night. I'm frustrated and at a loss.

herf

I have a few ideas - will move to email.

herf

We found a problem with invalid color profiles and fixed it in v4.119. This should affect a tiny number of users.

Mathieu

@herf v 4.119 did not fix it for me. Let me know if I can provide any extra information.

marcooos

@herf just signed up to let you know I also still have this problem when set darker than 3300k.

Running 4.119, Win 10 x64, Lenovo Flex 5.

Mathieu

@Mathieu And for what it's worth, I upgraded Windows 10 from 1909 to 20H2, but it doesn't fix the bug either, still with f.lux 4.119 / latest Intel drivers.