Monitor calibration file with LMS2RGB

Coding
1

Hi! I’m trying to generate spectrally calibrated monitor files. I have measured spectra from my monitor and can generate LMS2RGB matrices that look almost identical to the default internal matrix used by psychopy

    # L        M        S
    [4.97068857, -4.14354132, 0.17285275],  # R
    [-0.90913894, 2.15671326, -0.24757432],  # G
    [-0.03976551, -0.14253782, 1.18230333]])  # B

. When I enter this into the monitor center (or, build a monitor file with the matrix embedded) , Psychopy seems to ignore it and falls back on its default. It >does< parse the monitor file and it >does< accept my gamma parameters. Could some one please share a .json of a valid, spectrally-calibrated monitor file so that I can see what I’m missing?

When I run, no matter what’s in that LMS2RGB matrix, I get a string of errors saying:

WARNING This monitor has not been color-calibrated. Using default LMS conversion matrix.

This happens even if the monitor calibration matrix is >identical< to the internal default.

Thanks

Alex