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Solving Problems 123
• If the monitor display is blank, the computer may be in suspended, or
hibernate, state. Push and release the power button, move the mouse,
or press a key on the keyboard to bring the computer out of the
suspended state.
• Disconnect the monitor interface cable from the computer and check
the cable connector for bent or broken pins. Check for damaged or
frayed cables.
• If the monitor interface cable is not damaged, ensure that it is firmly
connected to the computer.
• Adjust brightness and contrast settings on the monitor.
• Check for interference:
– Electrical appliances on the same circuit or operating in close
proximity to the computer can cause interference.
– Audio equipment and certain types of lamps operating in
immediate proximity to the computer can cause interference.
• Restart the computer.
If the problem still exists after you complete the basic checks, fill out the
Diagnostics Checklist as you perform the following steps:
1 Perform the procedure in "Monitor Problems."
Is the computer working properly?
Yes. The problem is resolved.
No. Go to the next question.
Do you have another computer that is working properly?
Yes. Go to step 2.
No. Go to step 6.
2 Turn off the original computer and monitor, wait at least 30 seconds,
and disconnect the monitor.
3 Turn off your other computer, wait at least 30 seconds, and disconnect
its monitor. Connect the monitor from the original computer, and
then turn them on.
4 Allow 1 minute for the computer to initialize its components, and
then adjust the monitor's brightness and contrast controls.