HP OmniBook 4150 Notebook PC - Manual (Page 40)

Troubleshooting
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1-40
OmniBook battery discharges while docked.
•
Made sure that the ac adapter is plugged is connected to the dock and into an
ac outlet.
If an external PS/2 mouse or keyboard does not work
•
Make sure the mouse or keyboard is plugged into the correct port. The mouse
and keyboard ports look the same. See page 1-26.
•
Check that the PS/2 mouse is enabled in the BIOS Setup utility.
If you cannot hear audio devices or files
•
Fn+F7 mutes the audio system. Pressing Fn+F7 again enables sound.
•
Try increasing the volume. Fn + UP ARROW increases the volume.
If an external serial mouse does not work
•
Check that the correct serial port is enabled in the BIOS Setup utility.