Error – The measured luminance response is highly non monotonic (device or instr

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This topic contains 5 replies, has 2 voices, and was last updated by  Florian Höch (@fhoech) 1 week, 3 days ago.

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  • #20056

    Severin (@severin)
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    Hello,

    We are running a calibration for Davinci Resolve on an external Eizo 24″ using Black Magic Ultra Studio Mini Monitor. We get the error message: The measured luminance response is highly non monotonic (device or instrument fault). Cannot generate tone response curves.

    When opening the measurment window the measured result of White Point is around 4 Cd where it should reach about 100 Cd, with the brightness of the monitor set to 100%.. I believe this is an indication of our failure.. When executing the calibration, it stops after a while with the error message mentioned above.

    What we also find strange is that the color patterns are showen in full screen on the monitor.

    Looking forward for your help, maybe someone has the same problem..

    Equipment: I Mac 5k, Davinci 16, Display Cal 3,8.. i1 display pro

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    #20057

    Florian Höch (@fhoech)
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    Hi,

    What we also find strange is that the color patterns are showen in full screen on the monitor.

    That is not the pattern color, but just the background (APL). It’s a known Resolve bug under macOS. Please report this bug (patterns not shown over CalMAN calibration interface) to BlackMagic design so they may eventually fix it. In the meantime, you may use full screen patterns as a work-around (only suitable for desktop monitors like yours, not necessarily TVs) by maximizing the measurement window, or use Resolve under Windows.

    #20058

    Severin (@severin)
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    Thank you Florian for your quick reply..

    I checked full field pattern on, as well as I choose full screen for the measurment window.. Unfortunatly the calibration seems still wrong doing.. I attached a screenshot of the bizarre measurment of 2 Cd brightness.. I sucessfully calibrated in march this year, but this time (davinci 16) I can´t make it work..

    If there is anything more information to provide.. please let me know..

    Best Severin

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    #20060

    Severin (@severin)
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    attached all settings screenshoted.. for the last message, about single curve I used to check – no.. but also trying the oposite led to same result..

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    #20066

    Florian Höch (@fhoech)
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    You have to click the “maximize” button on the measurement window to use full screen patterns.

    #20067

    Florian Höch (@fhoech)
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    Btw, full field pattern insertion is not needed for the EIZO. It’ll just (unnecessarily) increase measurement times.

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