Weird issue about my calibration. Need Help!

[Erdo4]

Hello,

With my old PC, my measurement report had no weird value and I was using with no problem.

I had a new system recently, new OS. Installed DisplayCAL 3.8.9.3 and started calibration. I ‘m getting weird Contrast value at my all test and unstable gamma table at report. At my old system, I was getting 750-850 Contrast and my gamma table was stable. Now I’m getting 350-370 Contrast.

Using all default settings, only I’m setting to 6500K and Correction file. Like I did with my old PC. I have tried to move calibration device to different spots on monitor. Tried to re-adjust device several times. Tried different Gamma modes in monitor.

I don’t know what’s happening but I always getting low contrast reports and unstable gamma. Is it calibration device failure? I have been troubleshooting since morning and I’m going crazy.

Gamma report table. It’s all over the place. It wasn’t like that before.

My measurement report in attachment.

• This topic was modified 5 years, 6 months ago by Erdo4.
• This topic was modified 5 years, 6 months ago by Erdo4.
• This topic was modified 5 years, 6 months ago by Erdo4.

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[Vincent]

I had a new system recently, new OS.

HDMI configured as limited range? Check it.

[Erdo4]

Using DP.  Issue must be something else.

• This reply was modified 5 years, 6 months ago by Erdo4.

[Vincent]

No change on OSD values? Can you check range on display OSD?

Try to disable calibration and re-measure. You can use console log “check uncalibrated display” which is faster.
Or try with a USB “live CD” and measure from another computer (remote measurement) if you cannot get an ArgyllCMS to work on unzipped executables (no system install).
If contrast keeps at 300:1 after these tests then it is caused by HW or GPU range level, not calibration related.

[Erdo4]

I have LG 27GL850 and there is no color range option in OSD.

I have tried several times recalibrating again and again. Ofc I have deleted current preset first before doing it.

[Vincent]

Test what I said so you can discard both calibration & driver settings.

[Erdo4]

Is there a easy way to do what you said since I have no idea how to do it, beginner here. Sorry 🙂

[Erdo4]

I just checked “Report uncalibrated display device”.  That also gives very low contrast value.  As you said this is not related to calibration afaik but what would cause this?

[Erdo4]

It’s unlikely but I have to write it.

I’m using vertical gpu kit which uses extension cable and I recently changed my dp cable to original. (dp 1.4)

Should I remove it for just the sake of test or is it just not it?

What should I try before getting another calibration device to test it? It’s unlikely that device broke after a little of time.

• This reply was modified 5 years, 6 months ago by Erdo4.

[Ali Emre Alici]

Donanımhaber erdo is that you?

[Author]

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