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I will be using my laptop and all of a sudden, the monitor will blank out. I have to turn the computer off and back on again before it will come back on. What could be causing this?

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  • kbr048 Apr 20, 2008

    I have a Toshiba Satellite A215-S7422. I received it as a Christmas gift this past December.

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What kind of laptop and how old is it? Some laptops will shut the monitor off if the system gets overheated.

Posted on Apr 20, 2008

  • Bill Scarberry Apr 20, 2008

    Do you have good ventilation under the laptop while it is running? My Compaq presario R4025US will just shut off if the ventilation isn't good and it gets too hot, where my Dell Insperion 1100 shuts the monitor down. I would say to watch the heat, maybe watch the cpu usage and make sure its not staying at 100% Laptops hate running at 100% and do wierd things. Of course if it is running at 100% while you are doing nothing but surfing the web/ checking email etc you may have malware or a virus. make sure your windows is up to date and your antivirus software as well.

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Thank you for using FixYa

I would try shutting down the computer in the normal way, and turning off the monitor.
Boot up and turn the monitor back on.
If it still doesn't work, then I would check the cables and power plugs and wall plugs.
Check the mouse and keyboard cable and any other cables plugged into the computer.
The next step requires a seperate monitor or laptop.
Try unplugging the monitor and pluging in another monitor. Most laptops have a common
VGA adaptor jack or even an Svideo jack.
If the other monitor does not work, Then take to a qualified technician for repair.
It could be your power supply in the computer or video controller.

I hope this was useful and please comment if this was helpful to you.

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just make sure computer is turn off when you do this.

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hi try this ,,,
  1. Ensure the video cable is connected (and connected to the correct video port).
  2. Turn off the monitor using the monitor's power button and then restart the monitor.
  3. Cycle the power on the monitor as follows:
  4. Turn off the monitor. The power light on the monitor should be off. Leave the computer turned on.
  5. Unplug the power cord.
  6. Wait 5 seconds.
  7. Plug in the power cord.
  8. Press the power button on the monitor to turn on the monitor. One of two things happens:
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    2. The power light on the monitor comes on but the screen displays one of the messages again. The monitor is not receiving a video signal from the computer that it can detect and use. Continue using these steps to adjust the Windows display resolution to the Monitor's native (default) resolution
    3. Connect the monitor to another computer that you know is working to determine if the monitor should be serviced or replaced:
      • If the monitor displays an image from another computer, you know that the monitor works. Troubleshoot the video connection and graphics adapter on the computer.
      • If the monitor remain blank when connected to another computer, the monitor signal processing hardware may be bad. The monitor should be repaired or replaced.
      hope it will work for u .. little_angel

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