Horrible colors on external monitor using macbook air(2012) with mini dp to hdmi

Did anyone have to uninstall the fix first?

Confirmed, 10.8.3 solved the hdmi issue for me.

Unfortunatly the 10.8.3 did not solve my MDP to VGA issue. Still bad colours and almost no grey. Same problem with the MacMini. (But no problem when running Windows on same monitor.)

I just hooked mine back up from mini > dvi to mini > hdmi and it seems to have fixed the color issue in this thread. I did not try tweaking anything prior to this update. I have attached a picture of my setup but it probably doesn't help with being able to see a difference.

Update did not fix it for me with an external monitor using a display port, the edid override however did. Can not believe this isn't a standard check box in an advanced displays tab.

workaround on ireckon.net solved this bug for me on a retina macbook pro as well.

good job!

I can confirm also that solution from ireckon.net solved this problem: I have a late 2013 rmbp 13 inch with Philips 272P4 (2560x1440) connected via a DP-miniDP cable. Forcing OSX to send RGB signal completely solved this problem.

So I tried the ruby script, and it didn't help. I also noticed that the screen (I don't know what you call it, shown below) is blurry. The rest of the desktops are fine, but the one with the sticky notes now looks like garbage (when running on my rMBP, NOT on the external monitor)

I have two external monitors. One is a 2312hm, one is an older Samsung. The Samsung is hooked up via displayport to VGA, and the Dell is hooked up via HDMI to DVI. Neither monitor saw improvement after running that script, and now stickies look like garbage even when running on the rMBP itself.

How can I reverse its effect?

Actually it seems I skipped the last two steps of ireckon. I need to find the folder and move it over. Will update after I do.

I seem to have no luck on my side as well.

I have a Dell S2409W and a 15" rMBP running 10.9.3.

I tried the ireckon hack but the color profile seems terribly washed out and the gradient shadows very bad. I am stumped on what to do.

Thank you very much. You save my eyes:)

I had the same issue. All I had to do to fix was push the RGB/COMP button on my monitor!

go to system preferences and select displays and select color.

I have the same problem. MacBook Pro 13'' Early 2011. I'm linking the HDMI to a high resolution Samsung LCD monitor, and the image quality is awful. I also hear a strange background noise that disappears when I disconnect the HDMI cable.

Guys, I had been same "grey seems pink" and "washed out colors" problems with my 13" 2013 MBP-R. I am using HDMI to connect to my new Acer H236HL-BID IPS monitor. First I thought that there is an issue with my monitor, but having connected a friend's Windows PC I figured the problem lies somewhere else. Anyways, no amount of software tweaking from within the Mac OSX helped. Finally I changed the color temperature from the menus of the monitor, which made the things better for me. I guess this issue can be resolved by changing the color temperature. Anyone one else having this kind of problems with an Acer monitor, this solution works.