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Hello my monitor is not showing up on my computer and I have to use my television to send this request. I even went to displays and I only see my television and not the monitor. I try to wake up the monitor but it says before it goes back to sleep mode that it is not getting a signal. I tried everything unhooking my computer and shutting it down but that did not work. I have a Dell computer and flat screen monitor. Can you help?

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Some dell monitors have dual input; thats VGA and DVI. Make sure the input you are using is what you have selected, and that the cables are secured to the pc and monitor.

Also, make sure your video card driver has support for dual output. You may need to contact the manufacturer of the video card and get a newer driver, and update your direct x stuff as well. If the card has support for multiple outputs, but you cannot detect them, it is MOST likely the driver, but check your cable connections as mentioned earlier, just to be sure.

Posted on Nov 16, 2009


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Posted on Jan 02, 2017


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Display are not showing cleanless

Try connecting an external monitor to the computer and see if it displays better. Borrow a monitor from a neighbor, friend, relative or co-worker and connect it to the computer. If the Borrowed monitor displays ok, then your video card inside the computer is good, but your lcd screen is bad. If the Borrowed monitor displays the same way with problems, then your video card inside the computer is bad.

Shine a flashlight on the dark screen to see if you barely see the icons on the desktop. If so, then the LCD Inverter is bad.

Plug in an external monitor and see if the display shows up on it. It can be any kind of monitor even the old big fat crt monitors as long as it has a vga cable to connect to your computer's vga port. If the video shows on the external monitor that proves your video card is ok, ,but your lcd screen is bad. The video will show on most systems when you reboot without you having to do anything. Some systems will require you to hit the FN (Function key) + F1 thru F12. Hold down the FN key then hit the correct key for displaying on the monitor (F1 thru F12). The correct key will normally have CRT/LCD on it or it will have the icon of a display.

If you see no icons by shinning a flash light and the external monitor works, then your screen is bad. If you see no icons by shinning the flash light and nothing shows on the external monitor, then most likely your video card is bad.

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Hi thirdeye6j93,

Thanks for your question at Fixya,

Please find the solution to your problem as follows :-

  • Please make sure that when you click on the display preferences and select displays option , you will need to go in arrangement option and then follow the instructions that you see.
  • To play a DVD on a television connected to your computer, click the Arrangement button in Displays preferences and move the menu bar to the television.
  • If you don't see that Arrangement button, then it means that your computer is only capable of mirroring (showing the same image on all screens).

Hope this helps ...:) In case you have any queries , feel free to contact me.

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The intermittent image, dark picture or no power are all indications of a failing power supply. If you can solder you should be able to repair your monitor. We have an article posted on our web site at: The post is about repairing the Westinghouse LCM-20V5 but they both use the same power supply board, the Delta DAC-12M033 so the information is the same. If you don't want to do the repair yourself we do offer a repair service for this model for $32 plus return shipping. More information on this service can be found here.

I hope this information helps, if so please rate our solution.

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The problem probably lies in the fact that you have not told the computer to send the display to another device. This is done through a combo of keystrokes--using the Fn key with the special function key that shows a monitor (or two monitors) on it.
If you hit that combo, it will cycle through the attached displays.

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The usual cause of the slow display start up is the power supply. When you turn the monitor on or wake it from power save the power supply starts up but if it does not get stable voltages then it will not display a picture until they do stabilize. When the power supply starts to fail you can get this type of symptom. Other indications of failing power supplies include blinking power lights, fuzzy or wavy display or even a high pitched sound coming from the back of your monitor. If you cab solder then you should be able to do the repair yourself. We have a step by step repair article posted on our web site at: Look it over and see if this is something you can do, if you don't want to do the repair yourself we do offer a repair service. Here is the link to request a service number on your monitor,

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It sounds like the inverter is out on the power supply for the backlights. If you can open the monitor and take a few pictures of the boards and send them to I will try to cross reference the boards and give you a repair solution.

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Hello there.
I understand that your Notebook is not showing the display lights. To isolate the issue please do the following troubleshooting steps.

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If your Notebook is under warranty HP will repair it free of cost.

Contact HP customer chat center for more information regarding the details of the repair and the procedure for sending the Notebook to HP in case of repair.

For contacting HP chat support click on this link or copy and paste it in address bar of a web browser.

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