HP Pavilion computer is on, but the screen is blank

If the computer is on, but the screen is blank

• Try pressing Fn+F1 to increase the contrast or Fn+F2 to decrease the contrast. (On TFT displays, contrast control is not necessary and therefore is not available.)
• Press Fn+F12 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
• Check whether the display resolution is set to its default setting—800×600 for 12.1" display or 1024×768 for larger displays. Check this in Start, Settings, Control Panel, Display, Settings.
• If you have an HPA display, try pressing Fn+F1 to increase contrast. If part of the Windows desktop is not visible and you have to scroll down to see the taskbar
• Your display resolution may be set to 1024×768 on a 12.1" display, instead of 800×600. You need to set the monitor type to Laptop Display Panel (800×600) in Windows 98 or Digital Flat Panel in Windows ME.

1. Click Start, Settings, Control Panel.
2. Double-click Display.
3. Click the Settings tab.
4. Click Advanced.
5. Click the Monitor tab.
6. Click Change.
7. Click Next.
8. Choose to manually select the monitor type.
9. Select Laptop Display Panel (in Windows 98) or Digital Flat Panel (in Windows ME) and click Next.
10. Click Next and then Finish.
11. Click Close.
12. Reduce the resolution to 800×600 pixels and click Apply.If an external display does not work

• Check the connections.
• Press Fn+F12 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 LCD/CRT in the Main menu. You may also want to test the display with diagnostics. See Testing Hardware Operation.