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@mauricerkelly
mauricerkelly / 1-Force RGB mode for OS X.md
Last active June 3, 2019 17:17 — forked from adaugherity/patch-edid.rb

This Gist contains the script and generated output file for an Acer B276HUL.

The pre-generated file below is known to work with:

  • OS X Mavericks
  • OS X Yosemite
  • OS X El Capitan

For El Capitan:

  1. Restart your Mac while holding Command-R: this puts your Mac into Recovery Mode.
@adaugherity
adaugherity / patch-edid.rb
Last active April 18, 2026 17:42 — forked from BugRoger/patch-edid.rb
#!/usr/bin/ruby
# Create display override file to force Mac OS X to use RGB mode for Display
# see http://embdev.net/topic/284710
require 'base64'
data=`ioreg -l -d0 -w 0 -r -c AppleDisplay`
edids=data.scan(/IODisplayEDID.*?<([a-z0-9]+)>/i).flatten
vendorids=data.scan(/DisplayVendorID.*?([0-9]+)/i).flatten