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FixEDID V2.3.2, Application to generate overrides automatically for Apple Displays

FixEDID Display EDID iMac Cinema HD Thunderbolt MacBook MacBook Air HiDPI scale-resolutions

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Funky frank

Funky frank

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C'mon guys.


In the login screen, colors appear to be normal, almost no step effect visible.


Directly after entering the password, some color profile or driver kicks in, and I can see obvious step effects.


Never had such a problem with 10.12.1 or 10.9.4...


Any idea please....?



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Hoping someone could help me with something...


I'm trying to get my computer to act the same without a display connected vs. with a display connected, because I work in a studio where someone switches out the display at times. The problem is when I use Teamviewer to login.. it will hang on login if I don't have a display connected, and it's very difficult to get around that.


I thought an EDID override would fix it, since I believe EDID overrides are what fix Windows HTPC systems having Steam streaming problems when the TV receiver is off. Should this fix my issue?


I tried using DarwinDumper to dump my EDID when the proper display was in, and then used FixEDID to create a 'DisplayMergeNub.kext'. I installed the kext, I had to disable SIP on my system, but then it is definitely loading. But when I disconnect the display and try teamviewer, I'm still experiencing the same issue... low resolution, freezing, etc.


Any ideas? I'd be happy buying a small hardware component that does this.. I believe there is an EDID pass through HDMI adapter on Amazon for example, but it doesn't support HDMI -> DisplayPort which is my setup, and it also only exists as a 4K UHD resolution.



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Dear all:


I'd like to report a partial success in using this on a real mac.


I have a 2014 MBP with a replaced LCD screen. Unfortunately I bought a used screen with an incorrect EDID, so that macOS was not recognising it properly. The resolutions available in the Monitor System Preferences were wrong:




In addition, the  screen brightness control was not working, the brightness was always max.


With this program, I was able to partially "convince" macOS that the screen is valid. I now have the usual resolutions of




with the added bonus that aliasing is much better than before.


Unfortunately, the brightness control is still not working. I am using "Shades" for that, but I think it does not really dim the screen, just adds a darker tint to it. So battery usage is still as if the screen is fully on.


Anyway, it is already a great improvement.


Big thanks to the developers for creating this and making it available.

Also tagged with one or more of these keywords: FixEDID, Display, EDID, iMac, Cinema HD, Thunderbolt, MacBook, MacBook Air, HiDPI, scale-resolutions

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