There are two values at the end of the line, namely DisplayVendorID (10ac) and DisplayProductID (d06e). Therefore, if you want to modify the resolution of the external monitor, you must focus on the second line. You can see that AppleDisplay identifies an external monitor, and AppleBacklightDisplay identifies a self-contained monitor. "IODisplayPrefsKey" = "IOService:/AppleACPIPlatformExpert/ /AppleACPIPCI/ / /display0/AppleDisplay-10ac-413c" The terminal will output the following: "IODisplayPrefsKey" = "IOService:/AppleACPIPlatformExpert/ /AppleACPIPCI/ / /display0/AppleBacklightDisplay-610-a019" (It will not be displayed when the password is entered, but it is actually entered) sudo defaults write /Library/Preferences/ DisplayResolutionEnabled -bool trueĮnter the following command into the terminal: ioreg -lw0 | grep IODisplayPrefsKey Open the terminal and enter the following command, then enter the password.
Use custom resolution switchresx code#
SIP has been disabled, tryKnow almostThe above methods of creating a new administrator account or entering a line of code in the terminal to inject the script are not successful.įinally I found a feasible method and shared it with everyone.
When SwitchResX was used again, it always prompted "not installed". However, after upgrading the system, the external monitor returned to a resolution of 2560*1440. After reading the online tutorial, using SwitchResX software, HiDPI was successfully turned on. When the Macbook is connected to an external monitor, the fonts will appear blank, and the text is too small after changing to a 2K screen, so I tried to turn on HiDPI and change it to 1080 to improve the display effect.
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