My Monitor Doesn't Work: Is it Power-Saving, Sleeping or Faulty?

Computers can enter sleep or power-saving mode if left inactive for a while. If you cannot turn on the monitor, follow these instructions to troubleshoot the issue. These are listed from the easiest or simplest solutions to the more complicated ones. If these solutions don't work, call 4-TECH at 410-704-8324 or use the CCLT chat service.

Please note that computer setups vary between buildings. It’s important to identify the type of computer in the room before troubleshooting.

Some rooms are equipped with All-in-One (AIO) computers, where the monitor and computer are integrated into a single unit. These systems do not have a separate tower in the podium. To power them on, use the button located at the bottom-right corner of the display.

Process

Computer monitor doesn't turn on or display images

  1. Press the space bar or move the mouse to wake the monitor from sleep mode.
  2. Find the power button on the monitor and press it to turn it on.
  3. Verify computer power. The power button should show a steady light. If the light pulses press the power button once.
  4. Check the cables on the back of the monitor for loose connections; they should all fit tightly.
  5. Verify Windows/Mac display settings (extended, duplicated, etc.)
    1. Windows: Press Windows + P
    2. Mac: Open System Settings > Displays. Next to the Use as menu, select the Mirror option.
  6. Restart the computer by pressing and holding the computer's power button for 10 seconds to turn it off; wait 10 seconds before turning it back on.
  7. If the above steps fail to resolve the issue, report it as soon as possible.

Computer won't resume from Sleep or Power-Saving mode

  1. Press the space bar or move and select the mouse to wake the monitor from sleep mode.
  2. Verify monitor power. If unsure, select the power button. When the monitor is on, the power button should light up.
  3. If the monitor is on and the computer still won’t wake up, restart the computer by pressing and holding its power button for 10 seconds to turn it off; wait 10 seconds before turning it back on. 
  4. If you have recurring problems waking the computer, report it as soon as possible.
     
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