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Is the known bug that prevents gamma calibration with second monitor & windows still persistent?


So I’ve been trying to set up stimuli using psychopy on a laptop plugged into a CRT (as the secondary stimulus monitor). I’ve noticed that gamma calibration does not work and I saw that this is a known issue with windows and secondary displays (documented in the troubleshooting section)

I was wondering if this is still an issue or if Microsoft has fixed this bug (or if there’s a way around it in psychopy somehow).


Hi There,

Please could you tell us a bit more about how it is not working? e.g. are you getting any error messages?


Hi Becca,

I didn’t get an error, but when I tried using monitor.setGamma, changing the value had no impact on the luminance on the screen.