MacOS – How to fix inverted color on one thunderbolt monitor with maximum resolution set

displaymacbook promacos

I have two monitors. All of the sudden my second monitor has switched blue for red when it is at the full resolution 2560×1600. However, white is not black, so it isn't totally inverted.

If I use the same monitor on a different thunderbolt port at the full resolution this problem doesn't happen.

How do I fix this?

Best Answer

The following seems to have fixed it:

sudo mv /Library/Preferences/com.apple.windowserver.plist ~/Desktop/
sudo mv /Users/kbrandt/Library/Preferences/ByHost/com.apple.windowserver.CDE1EF8A-5D17-5A4E-AFB8-C4D1E19616DD.plist ~/

Followed by a reboot. I expect there may be a more targeted way to fix this, but this worked for now.

If you can forgive a little rant, I also have to killall Dock to get the wallpaper on the second monitor, and use SwitchResX to get the monitor to display the proper resolution. In short, it seems OS X sucks with multiple monitors (at least with non-apple displays).

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