A script to fix EDID problems on external monitors in macOS.
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Connect only the problem display.
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Create this directory structure (if it doesn't already exist):
sudo mkdir -p /Library/Displays/Contents/Resources/Overrides
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Download this ruby script in that directory:
cd /Library/Displays/Contents/Resources/Overrides sudo curl -O https://gist.githubusercontent.com/ejdyksen/8302862/raw/patch-edid.rb
Note: You may want to use adaugherity's version of the script instead.
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Run the script we just downloaded (as root again). This creates a new display override plist file.
cd /Library/Displays/Contents/Resources/Overrides sudo ruby patch-edid.rb
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Unplug and replug in the problem display.
- The original forum thread
- An improved version of the script by adaugherity
- An explaination of the problem from Atomic Object's blog
- Thanks so much to @stackrainbow for pointing out that this can be done without disabling SIP.
- This version appears to work in Catalina and Big Sur. See earlier revisions for what worked (with disabling SIP) in earlier versions of macOS, which require the override plist to be in a different directory.
Thank you for your "DisplayIsTV", but unfortunately it still doesn't work.
My DisplayVendorID is "4a8b" ProductID is "1b1a"
By the convert:
DisplayVendorID
19083
DisplayProductID
6938
And the path is:
/Library/Displays/Contents/Resources/Overrides/DisplayVendorID-4a8b/DisplayProductID-1b1a
The complete override file is
Still 61inch still tv
Maybe this is the limitation of Apple silicon, maybe this is the limitation of Mac OS 12. In short, it doesn't work, but thank you for your support! In my country, few people discuss these details, so I can only go to GitHub for help