Table 5-27 Display Problems (continued)
Problem | Cause | Solution |
Monitor does not function properly when used with energy saver features.
Monitor without energy | Disable monitor energy saver feature. |
saver capabilities is being |
|
used with energy saver |
|
features enabled. |
|
Dim characters. | The brightness and contrast | Adjust the monitor brightness and contrast controls. |
| controls are not set properly. |
|
|
|
|
| Cables are not properly | Check that the graphics cable is securely connected |
| connected. | to the graphics card and the monitor. |
|
|
|
Blurry video or requested | If the graphics controller was | Install the video drivers included in the upgrade kit. |
resolution cannot be set. | upgraded, the correct video |
|
| drivers might not be loaded. |
|
|
|
|
| Monitor is not capable of | Change requested resolution. |
| displaying requested |
|
| resolution. |
|
The picture is broken up, rolls, jitters, or flashes.
The monitor connections might be incomplete or the monitor might be incorrectly adjusted.
1.Be sure the monitor cable is securely connected to the workstation.
2.In a
3.Fluorescent lights or fans might be too close to the monitor.
Monitor must be degaussed. Degauss the monitor.
Vibrating or rattling noise | Monitor degaussing coil has | None. It is normal for the degaussing coil to be |
coming from inside a CRT | been activated. | activated when the monitor is powered on. |
monitor when powered on. |
|
|
|
|
|
Clicking noise coming from | Electronic relays have been | None. It is normal for some monitors to make a |
inside a CRT monitor. | activated inside the monitor. | clicking noise when turned on and off, when going |
|
| in and out of Standby mode, and when changing |
|
| resolutions. |
|
|
|
Brightness and contrast | Lower brightness and contrast settings. | |
inside a flat panel monitor. | settings are too high. |
|
Fuzzy focus; streaking, ghosting, or shadowing effects; horizontal scrolling lines; faint vertical bars; or unable to center the picture on the screen. (Flat panel monitors using an analog VGA input connection only.)
Flat panel monitor’s internal digital conversion circuits might be unable to correctly interpret the output synchronization of the graphics card.
1.Select the monitor’s
2.Go to the HP Support Web site and check for an updated display driver.
Certain typed symbols do not appear correct.
The font you are using does not support that particular symbol.
Use the Character Map to locate the and select the appropriate symbol. Click Start > All
Programs > Accessories > System Tools > Character Map. You can copy the symbol from the Character Map into a document.
150 System Diagnostics and Troubleshooting