Chapter 2 Troubleshooting; Keyboard And Mouse (With Cable) - HP Computer Troubleshooting And Maintenance Manual

Symptom
Images on the screen are
too large or too small, or
the images are fuzzy.
NOTE: In addition to the information listed here, also refer to the documentation that came with your monitor.

Keyboard and mouse (with cable)

Symptom
Keyboard commands and
typing are not recognized
by the computer.
Mouse (with cable) does
not work or is not
detected.
Cursor does not move
using the arrow keys on
the number keypad.
Cursor does not respond
to mouse movement.
4

Chapter 2 Troubleshooting

Possible solution
Adjust the monitor resolution setting in Windows:
1. Right-click an empty area of the desktop, and then click Screen resolution.
2. Select the resolution from the drop-down menu.
3. Click Apply, and then click Keep changes.
Possible solution
Use the mouse to turn off the computer, unplug and reconnect the keyboard to the back of your computer, and
then restart your computer.
Unplug and reconnect the mouse cable to your computer.
If the mouse is still not detected, turn off the computer, unplug and reconnect the mouse cable, and then restart
the computer.
Press Num Lock on the keyboard to turn off Num Lock, so that the arrow keys on the number keypad can be
used.
Use the keyboard to save changes in all open programs, and then restart your computer:
1.
Press the Alt+Tab keys simultaneously to navigate to an open program.
2.
Press Ctrl+S simultaneously to save your changes in the selected program (Ctrl+S is the keyboard shortcut
for Save on most—not all—programs).
3. Repeat step 1 and step 2 to save changes in all open programs.
4. After saving changes in all open programs, press the Power button to turn off the computer.
5. After the shutdown is complete, unplug and reconnect the mouse connector to the back of your computer,
and then restart your computer.