Using Dual Displays - Lenovo ThinkPad Edge E145 User Manual

9. Click Properties. If you are prompted for an administrator password or confirmation, type the password
or provide confirmation.
10. Click the Driver tab.
11. Click Update Driver.
12. Click Browse my computer for driver software, and then click Let me pick from a list of device
drivers on my computer.
13. Clear the Show compatible hardware check box.
14. 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.
15. After updating the driver, click Close.
16. 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.
17. Click OK.
Considerations for attaching an external monitor
• When installing an operating system, you must install the display driver for your monitor that is supplied
with the computer, and the monitor INF file that is supplied 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• If the external monitor you are using is outdated, the resolution and the refresh rate might be limited.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 dual displays

This section introduces the Extend desktop function that enables you to display output (the same or different)
on both the computer display and an external monitor.
Using the Extend desktop function
Your computer supports a function named the Extend desktop. With the Extend desktop function, you
can display output on both the computer display and an external monitor. You also can display different
desktop images on each monitor.
You can use the Extend desktop function without changing any settings. If the function does not work, refer
to the following topic on how to enable Extend desktop function.
Enabling the Extend desktop function
To enable the Extend desktop function, do the following:
1. Connect the external monitor to the monitor connector; then connect the monitor to an electrical outlet.
2. Turn on the external monitor.
3. Press F6, then select Extend.
To change the resolution for each monitor, do the following:
1. Right-click on the desktop, and click Screen resolution.
2. Click the Monitor-1 icon (for the primary display, the computer display).
3. Set the resolution for the primary display.
4. Click the Monitor-2 icon (for the secondary display, the external display).
.
Chapter 2 Using your computer
35