User Guide
o Check for AMD video driver updates at AMD (in English).
o Check for S3 video driver updates at S3 Graphics (in English).
o Check for Intel video support and downloads, Intel Downloads (in English).
6. Fine tune brightness, colors, image position, and contrast using the on-screen buttons on the
display. You can find image adjustment information in the display User Guide or in the online
support document "Using and Adjusting your Monitor."
7. If you cannot adjust the image to fix the problem, swap the video cable for a shorter video cable
to see if the problem is related to the video signal strength. If the picture is better when the
cable is replaced, use a better cable.
8. If the image quality problem persists, the display might be defective. Some display quality
symptoms that indicate hardware failure are:
o Permanent solid red, green, or blue lines that run across the screen. This indicates that a
ground trace has broken: replace the display.
o The display cannot show red, green, or blue, even from the display's on-screen menu.
This indicates a main board failure: replace the display or graphics adapter.
o Permanent gray swaths or bands across the screen. This defect is more visible when an
all white background is displayed. This symptom indicates that the polarizing filter is
damaged or not aligned correctly.
HP and Compaq Desktop Computers - Using Two or More
Monitors with One Computer in Windows 7
Before you begin
Make sure the computer has at least two video connections: one for the main monitor and one for the
secondary monitor or TV. Many HP and Compaq Desktop computers come equipped with two video
connections.
note:
If you must add a second video card to your computer to gain another video connection, make sure both
video cards use the same Windows 7 compliant (WDDM) driver. One way to ensure this is to use the
same video card model for both video connections.
This video shows how to connect dual monitors to one computer in Windows 7
Click here to see this video in full screen on YouTube.
Connect the second display
To connect your TV or second monitor as a second display, do the following:
1. Select the type of connection you want to use
2. Connect the TV or Connect the monitor
Select the type of connection you want to use