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4. Use
or
to select Clock and Phase adjustment.
· Clock (pixel frequency) adjusts the number of pixels scanned by one horizontal
sweep. If the frequency is not correct, the screen shows vertical stripes and the
picture does not have the correct width.
· Phase adjusts the phase of the pixel clock signal. With a wrong phase adjustment,
the picture has horizontal disturbances in light picture.
5. When the image no longer looks distorted, press Enter to save the adjustments of
Clock and Phase.
6. Press
to leave the OSD menu.
Manually installing the monitor driver
Below are steps for manually installing the monitor driver in Microsoft® Windows
Vista, Microsoft Windows 7®, Microsoft Windows 8/Windows 8.1 and
Microsoft Windows 10 Professional.
Installing the monitor driver in Windows Vista
To install the monitor driver in Microsoft® Windows Vista, do the following:
1.
Turn off the computer and all attached devices.
2.
Ensure that the monitor is connected correctly.
3.
Turn on the monitor and then the system unit. Allow the system to boot into
Windows Vista operating system.
Find the driver of the corresponding monitor model from Lenovo's website:
4.
http://support.lenovo.com/us/en/documents/T2254pC, and download it to the host
connected to this monitor for temporary storage (as shown in the figure on the desktop).
Click Start Control Panel, and then click the Hardware and Sound icon
5.
Click the Personalization icon.
6.
7.
Click the Display Settings icon.
8.
Click the Advanced Settings button.
9.
Click the Monitor tab.
10.
Click the Properties button.
11.
If the " Windows needs your permission to continue" window appears, click
on Continue button. Then click the Driver tab.
Open the "Update Driver Software-Generic PnP Monitor" window by
12.
clicking on Update Driver. and then click the "Browse my computer for
driver software" button.
13.
Select "Let me pick from a list of device drivers on my computer".
14.
Click the "Install from the disk" button, click on the "Browse" button, and then navigate
to the following directory: X \ Monitor Drivers \ Windows Vista
(Here, X stands for "the folder in which the downloaded driver locates" (such as desktop)
Select the "T2254pC.inf " file and click the Open button. Click the OK button.
15.
Select "Lenovo T2254pC" in the new window and then click "Next".
16.
17.
After the installation is complete, delete the downloaded program files, and close all the
windows.
Restart the system.
18.
Note: On LCD monitors, unlike CRTs, a faster refresh rate does not improve display
quality. Lenovo recommends using either 1680 x 1050 at a refresh rate of 60
Hz, or 640 x 480 at a refresh rate of 60 Hz.
Chapter 3. Reference information
3-5
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