Strange calibration behaviour

[Mr. T]

Hello everybody,

I tried to calibrate my LG IPS monitor and have a strange calibration behaviour. My setup:
dispcalGUI 3.1.7.1 with Argyll 1.9.2
-colormunki photo

My display has a color setting for i.e. red from 0 – 100. When I change the value from 50 down to 40, the red calibration bar reacts to that change. When I change the value from 50 up to 60, nothing happens with the bars, but the picture is noticeably more red.

The same happens with the blue color, is something broken?

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[WolfPeace]

I don’t know the exact reasons why this happens, but, from my experience, it’s not uncommon behavior on some monitors that have RGB values at default: 50,50,50 and you can go up and down from them. So I doubt your monitor is broken.

The best results on these monitors regarding whitepoint calibration are achieved by lowering RGB values not rising them higher than default.

[Mr. T]

The monitor reacts to my change, I can see that with my eyes… but the bars are not changing.

[Florian Höch]

This would only be a problem if the bars were already centered. In your case changing the red gain apparently does not contribute much to moving the white closer to the target (daylight) locus.

[Mr. T]

Hi Florian,

thanks for your reply : )
I was really close to the target whitepoint, but increasing the red color more and more should give me a “bar”-feedback that I am pushing too hard. As far as I remember I got this feedback in older versions… Did it change?

[Author]

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