Lenovo ThinkPad X240s User Manual page 51

Note: If your computer cannot detect the external monitor, right-click on the desktop, then select Screen
resolution. Click the Detect button.
Setting the external monitor type
To set the external monitor type, do the following:
1. Connect the external monitor to your computer, and then connect the monitor to an electrical outlet.
2. Turn on the external monitor.
3. Right-click on the desktop, and click Screen resolution.
Note: If your computer cannot detect the external monitor, click the Detect button.
4. Select the external monitor and set Resolution.
5. Click Advanced Settings.
6. Click the Monitor tab. Check the monitor information to make sure that the monitor type is correct. If it
is, click OK to close the window; otherwise proceed with the following steps.
7. If more than two monitor types are displayed, select Generic PnP Monitor or Generic Non-PnP
Monitor.
8. Click Properties. If you are prompted for an administrator password or confirmation, type the password
or provide confirmation.
9. Click the Driver tab.
10. Click Update Driver.
11. Click Browse my computer for driver software, and then click Let me pick from a list of device
drivers on my computer.
12. Clear the Show compatible hardware check box.
13. Select the correct manufacturer and model for the external monitor. If you cannot find your monitor on
the list, stop the installation of this driver and use the driver shipped with your monitor.
14. After updating the driver, click Close.
15. For the Windows 7 operating system, to change the color settings, right-click on the desktop, and click
Screen resolution. Click Advanced Settings, select the Monitor tab, then set Colors.
16. Click OK.
Considerations for connecting an external monitor
• When installing an operating system, you must install the display driver for your monitor that is provided
with the computer, and the monitor INF file that is provided with the external monitor.
• If you set a resolution higher than the resolution you are using on the computer monitor, and use an
external monitor that does not support that resolution, take advantage of the virtual screen function,
which enables you to display only a part of the high-resolution screen image your computer produces.
You can see other parts of the image by moving the screen with the TrackPoint pointing device or another
pointing device.
• If the external monitor you are using is outdated, the resolution and the refresh rate might be limited.
Using the mini DisplayPort connector
Your computer has a mini DisplayPort connector, which is a digital display interface for connection to
various external devices, such as Cathode Ray Tube (CRT) monitors, LCD monitors, projectors, or even
high-definition televisions. This compact connector enables a plug-and-play setup and supports adapters
that can plug into DVI, VGA, or High-Definition Multimedia Interface (HDMI) connectors.
The mini DisplayPort connector of your computer supports audio as well as video streaming.
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Chapter 2 Using your computer
35