"Both computers have in the past calibrated the monitors with DUCCS 1.5.10 and can still do so. However DUCCS 1.6.6.8973 appears to be employing an improved method of calibration and I would like to use it."
Latest DUCCS doubles the number of patches measured in native gamma ramp, from abut 10 to about 20. It improves grey range if your monitor when uncalibrated (like in Standard Mode) has pink or green cast in grey ramp (no color managed apps). DisplayCAL can measure numerically that color cast, grey range in a*b* or something like that, or just take a look on DisplayCAL measurement report, a* axis for greys, watch for greys with 0.5 or bigger on (+) sign having other grey with 0.5 or lower with (-) sign. You are searching for greys that have a green color cast (-) and greys with red color cast (+). Individual errors to referenece could be low in dE, but color distance between those greys could be high and visually noticeable. If your's is fine in grey range when calibrated with DUCCS 1.5.x, get old version until they fix it. It was not meant for you but for other users that have those problems.
Also UP2516D/UP2716D use a different backlight half way to newer WLED PFS displays with high AdobeRGB and P3 coverage, bigger P3 coverage than my GB-LED. Lastest DUCCS include an spectral correction for 95% P3 multimedia or gamming displays, a WLED PFS (thus, widegamut led, not "standard WLED" of office monitors), but that spectral sample for that backlights DOES NOT match backlight used by those UP dells. Green is different, it's and AdobeRGB+P3 display, not a multimedia P3 display. IDNK id DUCCS is using old RB_phoshor (which includes a GB-LED sample) or "gamer P3" WLED PFS sample for those UPs. Whetever they use none of them matches their backlights. Which one is better (less worse) will depend on spectral sensivities stored in firmware of your i1displaypro. My guess, and it's a guess, is that i1d3 colorimeters have a better matching to CIE 1931 2 degree in red-like wavelengths than in "cyan-like" wavelengths, so RG_phosphor could be a better match. I mean that new spectral correction bundled in latest DUCCS (because i1Profiler included it before) is not a big improvement for UPs. There is an spectral sample for that kind of AdobeRGB+P3 WLED PFS and HP has it (and DisplayCAL too). Why did Dell not include it in their software? IDNK, ask them.
Even though you didn't code it, can you tell me what software (if any) has to also be installed to enable DUCCS to function. In particular, does DUCCS load the calibration matrix directly into the monitor or does it do it via Dell Display Manager? This seems to be the point where everything crashes.
For my Dell notes, click my DELL-username and via Private Message send me all three (two original, one exchange) of the UP2516D service tag numbers.
The last Dell tested/validated version of DUCCS for the UP2516D was 1.5.10. The later released versions were for specific monitor models. 1.5.11 = UP3017 1.5.12 = UP3017Q 1.6.0.2151 = UP3218K 1.6.1.2844 = Dell Canvas 27 1.6.2 = UP2718Q
From where and how did you get DUCCS 1.6.6.8973?
What version of Windows 10 Pro?
Navigate to = C:\Program Files (x86)\Dell\Dell UltraSharp Calibration Solution\ReleaseNotes
Open those release notes in notepad. Does it mention which monitor models are supported?
There is an SDK where you can upload the lut-matrix-lut that these monitors use as HW calibration... but you have to provide LUT data (= you need to compute calibration) and write a small C++ program that uses SDK and execute LUT upload. (SDK can download LUTs too from CAL1/CAL2, so it would be my first try to make sure all is working OK).
If you do a little search there is a more or less trivial way to do it with a little programing for NATIVE gamut (= use DisplayCAL 1DLUT calibration and leave matrix as identity). sRGB/Rec709 or AdobeRGB gamut emulations are more complicated.
yumichan
3 Apprentice
•
739 Posts
0
October 31st, 2019 01:00
"Both computers have in the past calibrated the monitors with DUCCS 1.5.10 and can still do so. However DUCCS 1.6.6.8973 appears to be employing an improved method of calibration and I would like to use it."
Latest DUCCS doubles the number of patches measured in native gamma ramp, from abut 10 to about 20. It improves grey range if your monitor when uncalibrated (like in Standard Mode) has pink or green cast in grey ramp (no color managed apps).
DisplayCAL can measure numerically that color cast, grey range in a*b* or something like that, or just take a look on DisplayCAL measurement report, a* axis for greys, watch for greys with 0.5 or bigger on (+) sign having other grey with 0.5 or lower with (-) sign. You are searching for greys that have a green color cast (-) and greys with red color cast (+). Individual errors to referenece could be low in dE, but color distance between those greys could be high and visually noticeable.
If your's is fine in grey range when calibrated with DUCCS 1.5.x, get old version until they fix it. It was not meant for you but for other users that have those problems.
Also UP2516D/UP2716D use a different backlight half way to newer WLED PFS displays with high AdobeRGB and P3 coverage, bigger P3 coverage than my GB-LED.
Lastest DUCCS include an spectral correction for 95% P3 multimedia or gamming displays, a WLED PFS (thus, widegamut led, not "standard WLED" of office monitors), but that spectral sample for that backlights DOES NOT match backlight used by those UP dells. Green is different, it's and AdobeRGB+P3 display, not a multimedia P3 display.
IDNK id DUCCS is using old RB_phoshor (which includes a GB-LED sample) or "gamer P3" WLED PFS sample for those UPs. Whetever they use none of them matches their backlights. Which one is better (less worse) will depend on spectral sensivities stored in firmware of your i1displaypro. My guess, and it's a guess, is that i1d3 colorimeters have a better matching to CIE 1931 2 degree in red-like wavelengths than in "cyan-like" wavelengths, so RG_phosphor could be a better match.
I mean that new spectral correction bundled in latest DUCCS (because i1Profiler included it before) is not a big improvement for UPs.
There is an spectral sample for that kind of AdobeRGB+P3 WLED PFS and HP has it (and DisplayCAL too). Why did Dell not include it in their software? IDNK, ask them.
Eric_the_Gray
4 Posts
0
October 31st, 2019 03:00
All the more reason why I want to use it. Why does it crash?
yumichan
3 Apprentice
•
739 Posts
0
October 31st, 2019 04:00
IDNK, I did not code it.
I explained to you the gains going from 1.5.x to latest: potential improvement in grey range.
Eric_the_Gray
4 Posts
0
October 31st, 2019 15:00
Even though you didn't code it, can you tell me what software (if any) has to also be installed to enable DUCCS to function. In particular, does DUCCS load the calibration matrix directly into the monitor or does it do it via Dell Display Manager? This seems to be the point where everything crashes.
DELL-Chris M
Community Manager
•
56.9K Posts
0
November 1st, 2019 08:00
Eric_the_Gray,
For my Dell notes, click my DELL-username and via Private Message send me all three (two original, one exchange) of the UP2516D service tag numbers.
The last Dell tested/validated version of DUCCS for the UP2516D was 1.5.10. The later released versions were for specific monitor models.
1.5.11 = UP3017
1.5.12 = UP3017Q
1.6.0.2151 = UP3218K
1.6.1.2844 = Dell Canvas 27
1.6.2 = UP2718Q
From where and how did you get DUCCS 1.6.6.8973?
What version of Windows 10 Pro?
Navigate to = C:\Program Files (x86)\Dell\Dell UltraSharp Calibration Solution\ReleaseNotes
Open those release notes in notepad. Does it mention which monitor models are supported?
yumichan
3 Apprentice
•
739 Posts
0
November 1st, 2019 12:00
@Eric_the_Gray
There is an SDK where you can upload the lut-matrix-lut that these monitors use as HW calibration... but you have to provide LUT data (= you need to compute calibration) and write a small C++ program that uses SDK and execute LUT upload. (SDK can download LUTs too from CAL1/CAL2, so it would be my first try to make sure all is working OK).
If you do a little search there is a more or less trivial way to do it with a little programing for NATIVE gamut (= use DisplayCAL 1DLUT calibration and leave matrix as identity). sRGB/Rec709 or AdobeRGB gamut emulations are more complicated.
yumichan
3 Apprentice
•
739 Posts
0
November 1st, 2019 12:00
At your own risk
https://downloads.dell.com/FOLDER04721613M/1/DellMonitorSDK_2_0_0_FINAL.zip
My monitor is not supported so I cannot guide your or explain in advance the kind of communication issues with USB that can happen.
Eric_the_Gray
4 Posts
0
November 4th, 2019 00:00
Have you replied my reply with the information you requested?
Just asking.