Colorsync utility can't fix the icc file ?

Same problem here. LG-4K monitor gives a blue-ish screen after updating to the latest Catalina-version (10.15.4). The screen of the Macbook pro (15 inch, 2017, running Catalina 10.15.4 now) stays correct. Safe mode helps to correct the LG 4K screen, but returning to normal mode gives the same problem again. It makes my LG-screen worthless. Please fix this problem!

I have same problem, I have Macbook pro retine 2013 but I intsall Catalina and my webcam es horror and I try change webcam settings with display colour profile and somehow I find out there it's file call ITU-2020.icc can't fix with ColorSync utility.

Please help , i need my origen quality of webacam facetime HD

/System/Library/ColorSync/Profiles/ITU-2020.icc

Header message digest (MD5) is not correct.

The file is locked. Could not be fixed.

With 10.15.5 update .icc files has been fixed. However, I'm still having blank/black screen issue on my extended display monitor (Dell U2412M).

My display is connected through apple's HDMI to DVI-D connector device. I'm getting blank/black screen on extended display. Tried almost every single hack I could find on internet.

This $ucks!

OMG, Georgo Martini that did it! Fixed my 4k Acer XR342CK model. Finally have good color and no more greying out on my monitor!

aditya_hajare, the option should be on your external monitor display menu. Looks like you're showing only the one for the built-in display in your image. 2 windows should pop up when you go to the displays menu with an external monitor plugged in. Sometimes they hide behind other windows or on the wrong monitor, in my experience.

Lucky you.

I clicked on Gather Windows but I still see only following 2 windows. There's nothing behind them.

You said that menu could be on extended display and since my extended display is blacked out, do you know any way I can pull that window to my main macbook display and change there? Do you know how to do that?

I think I might have found a solution.

Open a new Terminal window and type this into the prompt:

sudo /System/Applications/Utilities/ColorSync\ Utility.app/Contents/MacOS/ColorSync\ Utility ; exit;

This will then ask you to enter your macOS password. Enter it and hit enter. This will open up the ColorSync Utility app using root privileges. Be sure to leave the Terminal window open while you're working with ColorSync Utility!

Within ColorSync Utility click the "Verify" button like normal and let it report back the issues it found. Then click "Repair" like normal—it should fix the issues and will say so next to the files it has fixed. To confirm click "Verify" again. You should get a message saying "Verifying done. No problems found."

Same issue. Updated to Catalina 10.15.4 this morning.

This also just happened to me after upgrading to 10.15.4. Must've been introduced in the update.

I have the exact same problem, /System/Library/ColorSync/Profiles/ITU-2020.icc appears in Profile First Aid and it says checking for 24 profiles. Is there a way to bring it back and get a new one

Can I have a new update to fix this update?

I have the same problem on Catalina 10.15.4.

Resolved

I too have the same problem. Do we have any solution for this ?

Same issue...I have an LG-4K monitor and colors are out of whack. floressent orange colors....terrible. I thought my monitor went bad until i started researching on the web.

One more update. I talked to a buddy of mine who is running 10.15.5 beta with a LG 4K 27UD58 monitor and doesn't have the issue. Maybe it will be fixed once that update gets pushed out.