Dell 510D User Guide - Page 91

Video and Display Problems

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buttons, run the Mouse test in the Pointing Devices test group in the Dell Diagnostics. Reinstall the touch pad driver - See "Reinstalling Drivers and Utilities." Video and Display Problems Fill out the Diagnostics Checklist as you complete these checks. CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. If the display is blank NOTE: If you are using a program that requires a higher resolution than your computer supports, it is recommended that you attach an external monitor to your computer. Check the battery - If you are using a battery to power your computer, the battery charge may be depleted. Connect the computer to an electrical outlet using the AC adapter, and turn on the computer. Test the electrical outlet - Ensure that the electrical outlet is working by testing it with another device, such as a lamp. Check the AC adapter - Check the AC adapter cable connections. If the AC adapter has a light, ensure that the light is on. Connect the computer directly to an electrical outlet - Bypass power protection devices, power strips, and the extension cable to verify that the computer turns on. Adjust the power properties - Search for the keyword standby in the Windows Help and Support Center. Switch the video image - If your computer is attached to an external monitor, press to switch the video image to the display. If the display is difficult to read Adjust the brightness - Press and the up- or down-arrow key. Move the external subwoofer away from the computer or monitor - If your external speaker system includes a subwoofer, ensure that the subwoofer is at least 60 cm (2 ft) away from the computer or external monitor. Eliminate possible interference - Turn off nearby fans, fluorescent lights, halogen lamps, or other appliances. Rotate the computer to face a different direction - Eliminate sunlight glare, which can cause poor picture quality. Adjust the Windows display settings - 1. Click the Start button and then click Control Panel. 2. Click Appearance and Themes. 3. Click the area you want to change or click the Display icon. 4. Try different settings for Color quality and Screen resolution. Run the Video diagnostics tests - If no error message appears and you still have a display problem, but the display is not completely blank, run the Video device group in the Dell Diagnostics. Then contact Dell. See "Error Messages" - If an error message appears, see "Error Messages."

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Video and Display Problems
Fill out the
Diagnostics Checklist
as you complete these checks.
If the display is blank
If the display is difficult to read
buttons, run the Mouse test in the
Pointing Devices
test group in the
Dell Diagnostics
.
Reinstall the touch pad driver
—
See "
Reinstalling Drivers and Utilities
."
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in the
Product Information Guide
.
NOTE:
If you are using a program that requires a higher resolution than your computer supports, it is recommended that you attach an external monitor
to your computer.
Check the battery
—
If you are using a battery to power your computer, the battery charge may be depleted. Connect the computer to an
electrical outlet using the AC adapter, and turn on the computer.
Test the electrical outlet
—
Ensure that the electrical outlet is working by testing it with another device, such as a lamp.
Check the AC adapter
—
Check the AC adapter cable connections. If the AC adapter has a light, ensure that the light is on.
Connect the computer directly to an electrical outlet
—
Bypass power protection devices, power strips, and the extension cable to verify
that the computer turns on.
Adjust the power properties
—
Search for the keyword
standby
in the Windows Help and Support Center.
Switch the video image
—
If your computer is attached to an external monitor, press <Fn><F8> to switch the video image to the display.
Adjust the brightness
—
Press <Fn> and the up- or down-arrow key.
Move the external subwoofer away from the computer or monitor
—
If your external speaker system includes a subwoofer, ensure that
the subwoofer is at least 60 cm (2 ft) away from the computer or external monitor.
Eliminate possible interference
—
Turn off nearby fans, fluorescent lights, halogen lamps, or other appliances.
Rotate the computer to face a different direction
—
Eliminate sunlight glare, which can cause poor picture quality.
Adjust the Windows display settings
—
1.
Click the
Start
button and then click
Control Panel
.
2.
Click
Appearance and Themes
.
3.
Click the area you want to change or click the
Display
icon.
4.
Try different settings for
Color quality
and
Screen resolution
.
Run the Video diagnostics tests
—
If no error message appears and you still have a display problem, but the display is not completely blank,
run the
Video
device group in the
Dell Diagnostics
. Then
contact Dell
.
See "Error Messages"
—
If an error message appears, see "
Error Messages
."