Dell XPS 710 - Manual (Page 95)

The screen is difficult to read
The image quality is poor
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Check the monitor cable connection —
l Ensure that the monitor cable is connected to the correct graphics card (for dual graphics card configurations).
l If you are using the optional DVI-to-VGA adapter, ensure that the adapter is correctly attached to the graphics card and monitor.
l Ensure that the monitor cable is connected as shown on the setup diagram for your computer.
l Remove any video extension cables and connect the monitor directly to the computer.
l Swap the computer and monitor power cables to determine if the monitor's power cable is defective.
l Check the connectors for bent or broken pins (it is normal for monitor cable connectors to have missing pins.)
Check the monitor power light —
l If the power light is lit or blinking, the monitor has power.
l If the power light is off, firmly press the button to ensure that the monitor is turned on.
l If the power light is blinking, press a key on the keyboard or move the mouse to resume normal operation.
Test the electrical outlet — Ensure that the electrical outlet is working by testing it with another device, such as a lamp.
Check the diagnostic lights — See Diagnostic Lights .
Check the monitor settings — See the monitor documentation for instructions on adjusting the contrast and brightness, demagnetizing
(degaussing) the monitor, and running the monitor self-test.
Move the subwoofer away from the monitor — If your speaker system includes a subwoofer, ensure that the subwoofer is positioned at
least 60 cm (2 ft) away from the monitor.
Move the monitor away from external power sources — Fans, fluorescent lights, halogen lamps, and other electrical devices can cause the
screen image to appear shaky. Turn off nearby devices to check for interference.
Rotate the monitor to eliminate sunlight glare and possible interference
Adjust the Windows display settings —
1. Click Start, click Control Panel, and then click Appearance and Themes.
2. Click Display, then click the Settings tab.
3. Adjust Screen resolution and Color quality settings, as needed.
Check the graphics card power cable connection — Ensure that the power cable for the graphics card(s) is correctly attached to the card.
Check the monitor settings — See the monitor documentation for instructions on adjusting the contrast and brightness, demagnetizing
(degaussing) the monitor, and running the monitor self-test.