John Silva shonjir
joevt
/ gfxutil.sh
Last active
September 14, 2025 17:30
macOS nvram boot variables, device properties, EFI device paths
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| #!/bin/bash | |
| # joevt Jun 13, 2023 | |
| # https://forums.macrumors.com/threads/documentation-on-all-parameters-for-nvram.2239034/post-28518123 | |
| gfxutilrepository="/Volumes/Work/Programming/EFIProjects/gfxutil/joevt-gfxutil" | |
| for gfxutilcmd in \ | |
| ~/Downloads/gfxutil/gfxutil \ | |
| ~/Downloads/gfxutil \ | |
| "$gfxutilrepository/build/Release/gfxutil" \ | |
| "$gfxutilrepository/build/Debug/gfxutil" \ |
joevt
/ ThunderboltUtil.sh
Last active
November 2, 2025 22:24
A set of functions to examine and modify Thunderbolt DROMs
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| #! /bin/zsh | |
| # ThunderboltUtil.sh v1.7 | |
| # by joevt Dec 5, 2024 | |
| #========================================================================================= | |
| # | |
| # | |
| # Thunderbolt DROM Notes: | |
| # | |
| # |
joevt
/ EDIDUtil.sh
Last active
May 20, 2025 02:48
A set of shell functions used to view and edit EDIDs.
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| #!/bin/bash | |
| #!/bin/zsh | |
| # by joevt May 24/2023 | |
| #========================================================================================= | |
| edid_decode=edid-decode | |
| #========================================================================================= | |
| # Modify EDID |
adaugherity
/ patch-edid.rb
Last active
February 25, 2026 11:07
— forked from BugRoger/patch-edid.rb
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| #!/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 |