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Yes. The problem is resolved.
No. Go to step 8.
4. Turn off the computer and any attached devices. Disconnect all devices from the
computer.
5. Make sure the AC adapter is firmly connected to the computer and to an
electrical outlet, or verify that a fully charged battery is properly seated in its bay.
6. Turn on the computer. Is the display on?
Allow one minute for the computer to initialize its components.
Yes. Go to step 7.
No. Go to step 9.
7. Adjust the brightness
. Is the full display readable?
Yes. Go to step 8.
No. Go to step 9.
8. Has an error message appeared?
Yes. See "Understanding Error Messages
," to find the message, along
with its explanation. If you can't find the message, call Dell
for technical
assistance.
No. If you still have a display problem but the display is not completely
blank, run the Video device group in the Dell Diagnostics
. Then call Dell
for technical assistance.
9. Turn off your computer and connect an external monitor to the computer.
10. Turn on the computer and the monitor and adjust the monitor's brightness and
contrast controls. Is the monitor readable?
Yes. The computer's display may be defective. Call Dell
for technical
assistance.
No. The computer's video controller on the system board may be
defective. Call Dell for technical assistance.
No Image Appears
on External
Monitor
During POST,
the computer
checks to see if an
external monitor is
attached to the
computer
Basic Checks:
Press <Fn>< F8> to switch the video image from the display to the external
monitor.
If the external monitor is blank, the computer may be in standby or hibernate (save-
to-disk suspend) mode. To resume normal operations, press the power button.
Ensure that the video cable is firmly attached to the video connector on the back
of the computer and that the monitor power cable is plugged into a working