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Mac Os X System Library Displays Overrides
Problem:
I don't have the reputation to post an answer on a protected question, but here's what worked for correcting the resolution on my 1920x1200 Planar PX2611W: Open the display settings from System. Short answer: OS X thinks themonitor is a TV, and is using the YCbCr colour space rather than RGB. You must override an EDID setting to force the RGB colour space to get it working correctly.Also In order to do that resolution you need Active adapters to Dual Link DVI. 2560x1440 is not a standard VESA resolution aka 2048 x 1536. WQXGA is 2560 x. Nov 03, 2019 Notes. MacOS versions used are Retail from Mac App Store, using createinstallmedia for USB Installer; Platform Datas (SN, ROM, UUID) used here are ALL FAKE.So, you need to regenerate them. Don't use Patched DSDT-SSDT if you have different BIOS version (need to configure config.plist - ACPI section); To boot with Clover UEFI, you need to configure BIOS (Press Esc when mach power on. Fixing EDID on OSX for External Monitors My two primary laptops today are a Dell XPS and the new Macbook Pro, both of which come equipped with USB-C. I picked up a Dell USB-C dock to interface with both laptops at my desk, however, the new Macbook Pro refused to behave with my new curved Samsung CF398 monitor. Nov 04, 2019 /System/Library/Displays/Overrides is now located at /System/Library/Displays/Contents/Resources/Overrides; Even with sudo, any write operations will not be permitted. To fix this, reboot in recovery mode (cmd+r during reboot), under utils, open up the terminal. Do csrutil disable. Reboot, and run the script in the relocated folder. Sep 25, 2019 System Integrity Protection is a security technology in OS X El Capitan and later that's designed to help prevent potentially malicious software from modifying protected files and folders on your Mac. System Integrity Protection restricts the root user account and limits the actions that the root user can perform on protected parts of the Mac.
Mar 04, 2013 I recently bought a MacBook Pro (with ‘Retina’ screen), but when I hooked it up to my Dell U2410 monitor via HDMI cable I was shocked by the poor picture quality. The contrast was all wrong and text was misshapen. No amount of calibration in the monitor or software would fix it. Short answer: OS X Continue reading Force RGB mode in Mac OS X to fix the picture quality of an external.
MacOSX doesn't allow all your screen resolutions if you don't have a display from Apple. For me, it would only allow me to run my iiyama 19' CRT at 75Hz, such that I could still see a little flickering. In MacOS 9, I didn't have this Problem. This was making me mad for as long as I have MacOSX installed.
Solution: In /System -> Library -> Displays -> Overrides, I found some folders named 'DisplayVendorID-[hex-number];' these contain XML files named 'DisplayProductID-[hex-number].' These files contain the information the system uses to determine wich resolutions to allow. All you have to do is create your own display definition. The problem is, you have to find out what DisplayVendorID and DisplayProductID your display is registered as. If you have the Developer Tools installed, you can use 'IORegistryExplorer' to find out. The path for me was IOService:/Root -> PowerMac3,5 -> MacRISC2Pe -> NVDA,DisplayB@1 -> .Display_NV-01108000 -> display0 -> AppleDisplay (I have a GeForce4 MX video card). [robg adds: I changed the '/' into ' -> ' so the lines would break.]
With the DisplayVendorID and DisplayProductID I found there, I created my own Display definition. I just copied this one: 'DisplayVendorID-756e6b6e/DisplayProductID-9210' (this must be the definitions for a 'Studio Display 21' by Apple) to a path containing the DisplayVendorID and DisplayProductID I found in the IORegistry. For the filename, the values must be in hex, and of course you have to be root to do that. Then I opened the new file and changed the values with key 'DisplayProductID' and 'DisplayVendorID' to the same values (but this time they must be base10 notation - not hex).
After restarting the computer, the OS now thinks it has an Apple Studio Display 21 attached and lets me set my Display to many more resolutions and refresh rates!
But WARNING!: As we all know playing around with display resolutions may be a dangerous thing! So if your old CRT goes up in flames .. or just black forever - I don't want to be held responsible!
[robg adds: Please heed the warning, as you really could potentially do bad things to your monitor with this hint! If you do manage to select an invalid screen resolution, you may be able to restore OS X functionality (if you didn't fry the monitor) with this hint. Also, a safer approach might be to try the method listed in this hint, and/or use the SwitchRes X application mentioned in the comments to that hint.]
Explanation
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If you’re absolutely sure that you want to delete all these items, press Return. You’ll see one or more files with paths such as /Users/.Trash/file.txt.If there are lots of files, you may find that the resulting list—all on one long line, wrapping in the Terminal window—may be very long. Terminal will empty the Trash. Mac delete cache files.
This script can simulate macOS HiDPI on a non-retina display, and have a 'Native' Scaled in System Preferences.
Some device have wake-up issue, script's second option may help, it inject a patched EDID, but another problem may exists here.
Logo scaling up may not be resolved, cuz the higher resolution is faked.
System Preferences
Usage
Run this script in Terminal
Recovery
Normal
Still running the script in the terminal, but choose option 3
Recovery mode
If you cant boot into system, or get any another issues, you can boot into macOS Recovery mode, and use the Terminal.app
There are two ways to close it. It is recommended to choose the first one
Remove your display's DisplayVendorID folder under /System/Library/Displays/Contents/Resources/Overrides , and move backup files
Please use the single display to execute the following commands. Transfer imovie library to another mac. If it is a laptop, turn off the internal monitor when turning off the HIDPI of the external monitor.
X System Clothing
In Terminal: