Set display scaling from command-line on Windows 11/10 with MultiMonitorTool

The new version of MultiMonitorTool (version 2.20) allows you to easily set the display scaling of specific monitor from command-line, by using the /SetScale command.

The first parameter of the /SetScale command is the name of the monitor (For example: \\.\DISPLAY1). Like in other commands of MultiMonitorTool, you can also specify the monitor ID or the serial number of the monitor, or ‘Primary’ string for the primary monitor.

The second parameter specifies the scaling value. You can specify the absolute scale value in percent, for example: 100,125,150,175,200,225, and so on…
You can also specify a relative value. In this case – you have to specify ‘0’ to set the recommended display scaling, a positive number (1, 2, 3, …) to set display scaling larger than recommended, or a negative number (-1, -2, -3, …) to set display scaling smaller than recommended.

Here’s some examples for the /SetScale command:
MultiMonitorTool.exe /SetScale “\\.\DISPLAY2” 150
MultiMonitorTool.exe /SetScale “Primary” 125
MultiMonitorTool.exe /SetScale “GSM5B54” 1

You can download the new version of MultiMonitorTool  from this Web page.

This entry was posted by NirSoft on March 10, 2025 at 3:42 am under Utilities Update. You can skip to the end and leave a response. Pinging is currently not allowed. Follow any responses to this entry through the RSS 2.0 feed.

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