MacBook Pro - External monitor. Calibration problems?

Question

macOS

introductory facts:
0) By occupation, I often do color correction
1) There is a desktop PC, with a good Dell monitor (in any case, it suits me completely).
2) Due to some technical issues, sometimes it is required to use the MAC OS X platform, Macbook Pro (late 2011) acts as such a tool

I'm trying to connect an external monitor with a bundle: Macbook Pro -> Thunderbolt-HDMI adapter -> HDMI cable (2m) -> Dell monitor. But the picture on the external monitor is just disgusting, the blue channel is very bright. It feels like a blue veil is on the monitor. No calibrations by the built-in MAC OS tools help. Well, I thought it means that I need to call a professional who will calibrate, if not for a random event this morning: the macbook was turned off and I connected an external monitor to it, then I turned on the macbook, suddenly I realized that the external monitor began to show a completely acceptable picture. I was delighted and switched the Input Source to the desktop to continue working, after an hour I switch the Input Source back to HDMI and see that the picture is again terrible and terribly blue. No matter how I tried to reproduce the sequence of actions, it did not work out.

ps: the problem was solved by replacing the cable with miniDisplayPort -> DVI

Answer 1

Doubtful transformation via HDMI.
About the blue color: it was on an old MB + VGA. The monitor was terribly green.
Now available MBP (late 2011) + TB→DVI + Dell U2311h - excellent quality :)

Answer 2

are you sure about the adapter?

Answer 3

It happened to me when, for example, in the process of working, I connect a monitor. Or I turn it off. In my opinion, Macos just works crookedly with left profiles when connecting non-Apple monitors
Good colors were obtained if you plug in an external monitor and restart Macos

Answer 4

such auto-switching is an ambush of many monitors)) I tried to calibrate my Nec in sRGB mode, and at the beginning of the calibration it switched to custom because the sRGB type cannot be changed by the user - and if the resulting profile is set back to sRGB mode, the colors will be curves. maybe this is done by changing the software for calibration, but I have not bothered yet)