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Tue, Mar 11, 2014 10:31 pm

Determining resolution from the command line on OS X

To determine the video resolution from a command line, such as a Terminal shell prompt, on an OS X system, you can use the command system_profiler SPDisplaysDataType.
$ system_profiler SPDisplaysDataType

    NVIDIA GeForce 9400M:

      Chipset Model: NVIDIA GeForce 9400M
      Type: GPU
      Bus: PCI
      VRAM (Total): 256 MB
      Vendor: NVIDIA (0x10de)
      Device ID: 0x0863
      Revision ID: 0x00b1
      ROM Revision: 3448
      gMux Version: 1.8.8
        Color LCD:
          Display Type: LCD
          Resolution: 1440 x 900
          Pixel Depth: 32-Bit Color (ARGB8888)
          Main Display: Yes
          Mirror: Off
          Online: Yes
          Built-In: Yes

    NVIDIA GeForce 9600M GT:

      Chipset Model: NVIDIA GeForce 9600M GT
      Type: GPU
      Bus: PCIe
      PCIe Lane Width: x16
      VRAM (Total): 512 MB
      Vendor: NVIDIA (0x10de)
      Device ID: 0x0647
      Revision ID: 0x00a1
      ROM Revision: 3448
      gMux Version: 1.8.8

In the example above, the video resolution for the MacBook Pro on which I ran the command is 1440 x 900. The Screen Information page at will also report a system's screen resolution, if you visit that page using a browser on the system. In this case it reports a width of 1440 and a height of 900 pixels for the MacBook Pro.

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