HP Notebook PC Reference Manual page 106

Troubleshooting and Maintenance
Troubleshooting Your Computer
• If you're using a TV connected to the S-video port, you must activate the TV—see
"To use a TV set as a monitor" on page 89.
• Test the display with the e-Diagtools diagnostics. See "Testing the Hardware" on
page 125.
If an external display cannot use high resolutions
• For Windows 98, use the default display type for the internal display: Default
Monitor. If you change the display type, non-Plug-and-Play (non-DDC) external
monitors will not be able to use resolutions higher than the resolution of the internal
display. You can check display settings using Display in Control Panel, or by right-
clicking the desktop and then clicking Properties.
• If you're using a TV attached to the S-video port, try reducing the display resolution
to 1024×768 or lower.
If HP Presentation Ready does not switch to your video settings
• If you're using an external monitor that isn't a plug-and-play device, open Control
Panel Display and set up a monitor that supports the video settings you intend to use
for your presentation.
If one or more display pixels look bad
TFT display manufacturing is a highly precise but imperfect technology, and
manufacturers cannot produce displays that are cosmetically perfect. Most, if not all, TFT
displays exhibit some level of cosmetic imperfection. These cosmetic imperfections may
be visible under varying display conditions, and can appear as bright, dim, or dark spots.
This issue is common across all vendors supplying TFT displays in their products and is
not specific to the HP notebook display.
HP notebook TFT displays meet or exceed all HP standards for cosmetic quality of TFT
displays. HP does not warrant that the displays will be free of cosmetic imperfections.
TFT displays can have a small number of cosmetic imperfections and still conform to
HP's cosmetic quality specifications, including the following:
• No more than 6 pixels remain on (always one color, such as white, red, green, or blue
dots).
• No more than 6 pixels remain off (always dark).
• No more than a total of 8 pixels stuck on or off.
• No other stuck pixel within 15 mm of a stuck pixel.
106 Reference Guide