#SwitchResX Settings for LG 21:9 UltraWide
SwitchResX is a utility that allows users to override the default resolution settings in OSX. For more information, including download links, vist http://www.madrau.com/ .
##Disabling System Integrity Protection (SIP)
If you are running OSX 10.11 or higher, SIP must be disabled. To disable SIP do the following:
- Boot into the recovery partition by pressing CMD + R when starting up your Mac.
- Once in recovery mode, open a terminal window.
- Type the command csrutil disable
- Reboot
##Adding Custom Settings
- After launching SwitchResX, select the external monitor from the list on the left.
- Select the 'Custom Resolutions' tab.
- Add a new custom resolution be clicking the + symbol at the bottom of the window.
- Adjust the settings to match the appropriate PNG provided in this gist.
- Press 'Ok'
- Close SwitchResX and save when prompted.
- Restart your Mac.
After following these steps, you should be able to adjust the resolution of your external monitor through the 'Display' window in System Preferences.
After using High Sierra on a 2017 Razer Blade Pro with 4K display, using QuickRes to achieve a readable resolution, moving back to an Intel MacBook Pro was frustrating for a bit. Experiencing how Windows 10 can easily adjust resolutions on the main display, but easily drive 2 UPerfect 15 inch 4K displays with needing specialized software like DisplayPort to achieve changes in resolution by percentages made the limitations in choices in Big Sur underpowered.
This software, running as a daemon, fixed everything. I now have similar functionality in macOS. I know the daemon function will not push frame rate high enough to play demanding games. However it does make it possible to get work done by being able to see more. After seeing it work today for just a few minutes was enough to buy a license.
I know a lot of this can be done at CLI, however this software fills in the missing part in macOS. Thank you for making this software!