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Hi all,
I bought new Asus PA279CRV. It is advertised to cover 99% DCI-P3 and 99% Adobe RGB. Anyway I tried many different settings during calibration with DisplayCal and the best I can get is about 71-72% Adobe RGB coverage and volume. The color accuracy seems to be good but the coverage is way off than it should be. I am using X-Rite i1Display Pro. You can see the settings that gave me the “best” results and the results as well in the attached screenshots.
The monitor settings are the default ones but I deactivated the Dynamic Dimming and Power Saving mode setted to Normal. Calibrating in Native Mode of the monitor and I get good RGB values in the beggining of the calibration changing only “Gain”.
Any suggestions what I am doing wrong?Calibrite Display Pro HL on Amazon
Disclosure: As an Amazon Associate I earn from qualifying purchases.You are running some sRGB simulation, by windows (auto color management, acm), by AMD driver (not you but other users may read this), by some 3r party tool by yours or if plugged through a laptop by laptop vendor.
You need to disable them, whatever they are. My guess is Windows 11 ACM.Also instead of these screenshots (whcih are meaningless exclusing the 1st one), it’s easier to run a verification report (HTML). This repost can help you spot full vs video levels, innacurate clorimeter correction, grey calibration issues and in your particular issue sRGB gamut simulation on the latest CIE a*b* gamut plot.
A final note: I won’t use XYZLUT profiles on a good behaved display, use single curve matrix unless your monitor is bad.
Hi Vincent,
Thanks for the suggestions. As far as I can see, Windows ACM is turned off. After running more tests today, I found that when I switch from 10-bit to 8-bit, I get good results (around 99% Adobe RGB). So I guess that either the cable or the Thunderbolt port on my laptop (Dell G15 5511 with NVIDIA 3060) is not capable of transferring all the data.
I’ve ordered a new cable that is certified for high bandwidth and DP 1.4. Hopefully, this will solve the problem. I will provide an update once I’ve tested it.It would not work that way with a wrong hdmi cable grade. Going to 10bit turns on ACM in windows 11. I do not know why. You can turn it off and still be in 10 bit.
Hi Ben, this solved my problem—thank you! 🙂 As Vincent suggested, the Windows 11 ACM option was indeed turned on. I hadn’t noticed this because I always checked this option when I was in 8-bit mode, and it was always off. Anyway, I checked again what happens when going from 8-bit to 10-bit, and it does automatically turn on. Now there is no restriction and I got good calibration results.
Anyway, now I have another problem – Windows seems not to be using the profile created with DisplayCAL, because when I view an image (for example, a desktop wallpaper), it is very oversaturated. If I view it in Chrome or with FastStone Image Viewer, then I see the correct colors. What should I do so the ICC profile is loaded across the entire system and used by every app? Is it possible this problem occurs because I have the Hybrid Graphics / Advanced Optimus option in the BIOS activated? I tried to deactivate it, but then my USB-C to DisplayPort cable stops working, and I can only get a picture through HDMI or USB-C to USB-C, but again only in 8-bit.Also, I would be thankful if you could give me some suggestions on how best to calibrate the display:
- Vincent suggested using a single curve + matrix. Which option is that? I attached a screenshot of all the test charts I have available.
- Which correction is best to use: LCD PFS Phosphor WLED Family, or something more specific like LCD PFS Phosphor WLED IPS, 98% Adobe RGB / 96% P3 (HP DreamColor Z24x G2)?
- LCD Generic or Refresh Generic?
- White and black level drift compensation both off, right?
- Calibration speed—Medium or Low?
Its going to be comlicated to get the whole Windows OS color managed. DWM on github with the right version of DWM for the OS version would work. No Videosrgb will clamp to srgb. I like this app. Less overhead and less headaches finding the right version for the right version of windows. Turning on HDR in windows will give SDR in non HDR apps. SDR is rec 709 and HDR is wide gamut and not wide gamut on fake devices. ACM will reduce the gamut to srgb. You can set apps to run in legacy color mode and not have it adjust to ACM in Windows. Should be a switch in hardware to run in srgb mode. I did not look up your device. I do not have wide gamut display.
- Profiles option has a single curve + matrix option. Run a calibration with that.
- I do not know.
- LCD generic
- Off is fine
- Low. If need more time do fast and run low later without reprofileing or recalibrating.
Great, thanks again! 🙂
Maybe I will just get used to the neon colors in Windows.
What are the potential downsides of measuring with XYZLUT profiles/setting it to auto correction and what will I benefit if I use single curve + matrix option?I use single curve + matrix option?
If display is good behaved, if it behaves close to perfect additivity on RGB and after calibration you have a non color managed neutral grey ramp, using a single curve matrix profile minimizes truncation errors on image editors, mostly in greyscale. You won’t see pink-green bands in color managed grey gradients.
If display does not behave in a good way after calibration, XYZ LUT profile is like a 3d mesh capturing irregular bahavior in display colorspace, so color management engines can predict them.
Most LCD mid level of higher IPS displays should be able to be described with a matrix profile.
We went from this https://cameratico.com/tools/web-browser-color-management-test/ to this https://www.wide-gamut.com/test/image-hdr
If a single curve profile is not good enough a curves + matrix profile is good. The curves profiles work for me in browsers. Some apps do not use xyz. Not really sure if Windows 11 does.
