Dell Latitude E7240 Ultrabook Desktop and Notebooks Users Guide - Page 57

If only part of the display is readable

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Tasks Eliminate possible interference Rotate the computer to face a different direction Adjust the Windows display settings Description Turn off nearby fans, fluorescent lights, halogen lamps, or other appliances. Eliminate sunlight glare, which can cause poor picture quality. Eliminate sunlight glare, which can cause poor picture quality. 1. Click Start > Control Panel > Appearance and Themes . 2. Click the area you want to change or click the Display icon. 3. Try different settings for Color quality and Screen resolution. Run the video diagnostics test - 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. If only part of the display is readable Connect an external monitor 1. Shut down your computer and connect an external monitor to the computer. 2. Turn on the computer and the monitor. Then, adjust the monitor brightness and contrast controls. If the external monitor works, the computer display or video controller may be defective. Contact Dell. Troubleshooting Your Computer 57

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Tasks
Description
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
Eliminate sunlight glare, which can cause poor picture quality.
1.
Click
Start
>
Control Panel
>
Appearance and Themes
.
2.
Click the area you want to change or click the
Display
icon.
3.
Try different settings for
Color quality
and
Screen resolution
.
Run the video diagnostics test
- 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
.
If only part of the display is readable
Connect an external monitor
-
1.
Shut down your computer and connect an external monitor to the computer.
2.
Turn on the computer and the monitor. Then, adjust the monitor brightness and contrast controls.
If the external monitor works, the computer display or video controller may be defective.
Contact Dell
.
Troubleshooting Your Computer
57