Troubleshooting and Maintenance

Troubleshooting Your Computer

Display Problems

If the computer is on, but the screen is blank

∙Move the mouse or tap the touch pad. This will wake the display if it is in Display-off mode.

∙Press Fn+F5 in case the internal display was disabled. (Do this three times to return to the state you started from.)

∙If the computer is cold, allow it to warm up.

If the screen is difficult to read

∙Try setting the display resolution to its default setting of 1024×768 or higher, depending on your model: click Start, Control Panel, Appearance and Themes, Display.

∙Try adjusting the size of the desktop icons and labels—see “To adjust the display” on page 34.

If an external display does not work

∙Check the connections.

∙Press Fn+F5 in case the external monitor was disabled. (Do this three times to return to the state you started from.)

∙The external monitor may not be detected. In the BIOS Setup utility, try setting Video Display Device to Both in the System Devices menu.

∙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 83.

∙Test the display with the e-Diagtools diagnostics. See “Testing the Hardware” on page 115.

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

Reference Guide

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