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@erichrobinson
Last active November 12, 2024 08:45
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SwitchResX Configuration

#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.

@mandylocombia
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mandylocombia commented Jun 23, 2024

I installed the application and it worked well on the first day, then entering pages with many colors or backgrounds with movement, or being on YouTube, the screen began to show green colors and then turn off, I have tried everything and I have not been able to solve it, any idea of how to solve it? Thank you.

IMG_0847.mov

@Vladistone
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Vladistone commented Nov 12, 2024

I'm not quite sure if it matches my problem, but I'll post my experience and attempts to set up an external monitor for Mac mini M2 pro (MacOS 13.7.1):
I purchased an additional third micro-monitor for specific tasks for DAW performance monitoring (reaper & Logic pro X) like this:

  • LESOWN 2.5 inch wide LCD w/HDMI-socket.
    vendor ID YXS-6713;
    DisplayProduct ID 6666;
    After arriving and unpacking, I couldn't run it on iMac 11.3 (MacOS 10.13.6 High Sierra and 11.7.6 Big Sure), but its functionality was checked by Win10.
    With the help of SwitchResX I managed to run it on mini M2 pro MacOS 13.7.1 Ventura.
    Снимок экрана 2024-11-12 в 13 53 24

But due to my inexperience, I myself did not understand how I set the monitor resolution to be too high 3840x880. Which was subsequently locked by the system:
Снимок экрана 2024-11-11 в 23 32 20
and all other options for deleting and reinstalling SwitchResX did not allow me to restore or switching of lower LCD resolution settings for normal viewing of information at screen windows.
But in the end, I managed to restore the desired initial settings in SRX with a screen resolution of 960x220, by switching in MacOS:

  • system settings -> Desktop & Dock settings -> Displays have separate Spaces => ON/OFF.
    But the problem with locking the new screen resolution still remained! Although I expected this...
    carrent settings:
    Снимок экрана 2024-11-12 в 16 05 26
    And for the next change, it is necessary to repeat all manipulations with switching the resolution parameters according to the above recommendations and because custom resolutions aren't supported on Apple Silicon.

current display windows review:
Снимок экрана 2024-11-12 в 16 04 34
Снимок экрана 2024-11-12 в 18 31 45

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