Broadcom Corporation BRCM1020 Manuel D’Utilisation
126
Troubleshooting
T
EST
THE
MOUSE
CONTROLLER
—
To test the mouse controller (which affects
pointer movement) and the operation of the touch pad or mouse buttons,
run the Mouse test in the Pointing Devices test group in the "Dell
Diagnostics" on page 101.
run the Mouse test in the Pointing Devices test group in the "Dell
Diagnostics" on page 101.
R
EINSTALL
THE
TOUCH
PAD
DRIVER
—
Video and Display Problems
CAUTION:
Before you begin any of the procedures in this section, follow the
safety instructions in the Product Information Guide.
If the display is blank
NOTE:
If you are using a program that requires a higher resolution than your
computer supports, it is recommended that you attach an external monitor to your
computer.
computer.
C
HECK
THE
BATTERY
—
If you are using a battery to power your computer, the
battery charge may be depleted. Connect the computer to an electrical outlet
using the AC adapter, and then turn on the computer.
using the AC adapter, and then turn on the computer.
T
EST
THE
ELECTRICAL
OUTLET
—
Ensure that the electrical outlet is working by
testing it with another device, such as a lamp.
C
HECK
THE
A C
ADAPTER
—
Check the AC adapter cable connections. If the
AC adapter has a light, ensure that the light is on.
C
ONNECT
THE
COMPUTER
DIRECTLY
TO
AN
ELECTRICAL
OUTLET
—
Bypass power
protection devices, power strips, and extension cables to verify that the
computer turns on.
computer turns on.
A
DJUST
THE
POWER
PROPERTIES
—
Search for the keyword
sleep in Windows
Help and Support.
S
WITCH
THE
VIDEO
IMAGE
—
If your computer is attached to an external
monitor, press <Fn><F8> to switch the video image to the display.
If the display is difficult to read
A
DJUST
THE
BRIGHTNESS
—
Press <Fn> and the up- or down-arrow key.