Troubleshooting Without Diagnostics

Solving Display Problems (Continued)

Problem

Cause

Solution

 

 

 

Blurry video or requested

If the graphics

Install the video drivers on the

resolution cannot be set.

controller was

diskette included in the upgrade kit.

 

upgraded, the correct

 

 

graphics drivers may

 

 

not be loaded.

 

 

 

 

 

Monitor is not capable

Change requested resolution.

 

of displaying requested

 

 

resolution.

 

 

 

 

Screen goes blank.

You may have a screen

Press any key or type password.

 

blanking utility installed

 

 

or energy saver

 

 

features are enabled.

 

 

 

 

The picture is broken up,

The monitor

1. Be sure the monitor cable is

or it rolls, jitters, or flashes.

connections may be

securely connected to the

 

incomplete or the

computer.

 

monitor may be

2. In a 2-monitor system or if

 

incorrectly adjusted.

 

another monitor is in close

 

 

 

 

proximity, be sure the monitors

 

 

are not interfering with each

 

 

other’s electromagnetic field by

 

 

moving them apart.

 

 

3. Fluorescent lights or fans may

 

 

be too close to the monitor.

 

 

 

Monitor overheats.

There is not enough

Leave at least 3 inches (7.6 cm) of

 

ventilation space for

ventilation space. Be sure there is

 

proper airflow.

nothing sitting on top of the monitor

 

 

obstructing the air flow.

 

 

 

Troubleshooting Guide

2–17

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Compaq 177620-006, Compaq Evo Desktop manual Solving Display Problems