Force RGB Mode Pink Tint Magenta hue Big Sur?

[Bustycat]

• Reboot into recovery mode (⌘-R at boot).
• Mount your main disk (enter Disk Utility, select the gray Macintosh HD, click Mount, provide your password, close Disk Utility).
• Open up a terminal (Utilities -> Terminal), backup the overrides directory, copy in your new override file, and reboot:
  • cd /Volumes/Macintosh\ HD/System/Library/Displays/Contents/Resources
  • cp -R Overrides Overrides.bak cp -R /Volumes/Macintosh\ HD/Users/jrr/Desktop/DisplayVendorID-10ac Overrides/
  • reboot

https://spin.atomicobject.com/2018/08/24/macbook-pro-external-monitor-display-problem/

This is the outdated method. Do not try with /System/Library/ for Big Sur.

 

[FelixNYC]

/Library/ folder should not be off limits. If you can't write to it, macOS will probably give you all sorts of problems.

/System/ folder is different.

View attachment 501801

I made the same directory of folders but the system doesn't know to look there for forced RGB files.

 

[pastrychef]

I made the same directory of folders but the system doesn't know to look there for forced RGB files.

I don't know why your system doesn't know to look there... It works for me...

 

[FelixNYC]

I tried everything......Then I decided to move the connectors around.... When I first got my card RX580, triple monitors only worked via 1 HDMI, 1 DisplayPort and 1 DVI on each. I pulled the DVI adapter off and jammed the pink hue cable into the 2nd HDMI port and Voila! No pink screen and triple monitors. What a headache....