Lenovo ThinkPad USB 3.0 Pro Dock, User Manual, Page: 16 / 64

Setting the resolution of the external monitor
The ultra dock enables you to set the resolution of the external monitor.
In extend mode and single-display mode, you can set the resolution of the external monitor by doing the
following:
1. Click the ThinkPad USB 3.0 Ultra Dock icon in the Windows notification area. A pop-up window
opens.
2. Select ThinkPad USB 3.0 Ultra Dock ➙ Screen Resolution , and then select the desired screen
resolution option for the external monitor. For example, “2048 x 1152” means that the video output
resolution will be 2048 by 1152 pixels.
In mirror mode, you can set the resolution of the external monitor by doing the following:
1. Click the ThinkPad USB 3.0 Ultra Dock icon in the Windows notification area. A pop-up window
opens.
2. Select Video Setup . A window opens.
3. In the Resolution drop-down list box, move the slider up to increase or down to decrease the resolution
of the external monitor.
Switching video output modes
To switch from one video output to another, do the following:
1. Click the ThinkPad USB 3.0 Ultra Dock icon in the Windows notification area. A pop-up window
opens.
2. Select ThinkPad USB 3.0 Ultra Dock , and then select the video output mode as you want.
For more information about the video output modes, refer to “Understanding the video output modes”
on page 9.
Supported resolutions and refresh rates
The following tables list the refresh rates supported at various resolutions for the ultra dock video output.
Table 1. Supported resolutions and refresh rates: DP output only
Resolution Refresh rate (Unit: Hz)
640 x 480 60, 67, 72, 75, 85
720 x 400 70, 85, 88
720 x 480 50, 60
768 x 576 50, 60
800 x 600 56, 60, 72, 75, 85
832 x 624 75
800 x 480 60
848 x 480 60
1024 x 600 60
1024 x 768 60, 70, 75, 85
1152 x 864 75
1152 x 870 75
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