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No input data

The monitor does not bring up any thing when i check source it says no input data

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Generally this means that the monitor is not getting a signal from the computer.

You can also get this message when a computer goes into standby. Pressing a key or moving the mouse can bring it back.

Some monitors have Dual inputs. DVI and VGA make sure in the menu screen the correct input is selected.

If you reboot your computer system and it's fine until windows begins to start then you know your monitor and graphics card is fine and a computer screen resolution setting is at fault.

Use a working monitor to change the resolution, or if you don't have one while the computer is booting press F8 and select safe mode in the menu, log in and change the resolution then reboot.

Check that the monitors cable is securely attached to the computer at both ends.

Try the monitor on a different computer.

If it works fine on a different computer you probably have a bad graphics card on the computer it was attached to.

If it does not and you have the same problem then there is a problem with the monitor.

Posted on Sep 05, 2008

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Model dx4300. Why does monitor indicate no signal input?

This machine has both VGA and HDMI outputs. Depending upon your monitor, you have one of the two cabled up to it. Some monitors will auto-detect which input is active, but others do not. Check the monitor and ensure that if is has dual inputs (VGA/DVI) (VGA/HDMI), that you have the correct input source selected. This is usually done from the buttons on the monitor itself.

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My Acer m1201 desktop computer will not come on.After turning on , then switch monitor off and on , It says ACER, then "no signal" .How can I fix it?

Acer monitors all display the ACER logo when you turn them on. There are one of three most likely issues with the system.

  1. If the monitor has multiple input jacks (VGA/DVI), check to be sure that the monitor is selecting the input that you have the computer connected to. One of the control buttons on the monitor should select input source.
  2. If #1 is not the problem, the monitor itself may be faulty. The input jack may not be working. Test the system with another monitor if possible.
  3. If another monitor doesn't work either, then you have a problem with the on-board graphics adapter for the computer. You will either need to replace the computer, or if possible, install a graphics card into the machine to take over for the failed portion of the motherboard.

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Source input menu

I have the same model with the same problem; HP Pavilion 25bw and the Source Control menu pops up and scrolls like crazy. Pressing the buttons on the front of the monitor slow it down or make it pause for a second, but other than that appear to do no good. What I have had luck with, at least for a while, as long as a few months, is taking a clean paper towel and spraying it with Windex and wiping the control buttons clean on the monitor. It's hard for me to believe that a fine layer of dust may be causing the issue, but it does seem to work temporarily.

Good luck!

Dec 16, 2013 | HP Pavilion PC Desktops

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Optiplex 745 monitor goes to sleep randomly

In regards to your issue with your monitor: For a monitor to display "no signal input" there is likely a problem with the monitor making a connection to your input source (yes I know duh). First and easiest thing to fix this is to check your cables going between your computer and monitor, if your computer and monitor start out working and then fail to communicate, there is a good chance that the cable might be coming loose just enough that the connection fails. I might suggest that if you have, as you say another computer, that you try swapping monitors to check where the problem lies.

Hope this helps some.

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HEWLITT PACKARD MONITOR HP L1950g suddenly gone dark...still powers up

There are several things that might have happened. Blown backlight, broken input port, or blown capacitor/power supply.

If your backlight is broken, you will still be able to faintly see the picture if you shine a flashlight onto the screen. This is a possibility because you're monitor may not notice that the backlight is broken so it will give you the green light.

Try another input if possible. I believe that monitor only has VGA but if it has DVI try the one you haven't been using. I doubt this is the case but it's possible. Also try another PC or different input source and even a different cable if you have one. You want to make sure the monitor is getting a solid signal.

The other possibility is that you have blown a capacitor. They often fail on monitors and TVs. If you are handy with a soldering iron it is an easy fix but you will have to open the monitor to diagnose. Check for specific instructions on how to do this.

Unfortunately, there is no easy fix. The easiest thing to do in this case is replace the monitor but if you have no other choice, just open it up and see if you notice anything wrong. You have nothing to lose since it's already broken and if nothing else, you'll see what's inside and potentially learn from it.

Jul 26, 2012 | HP PC Desktops

1 Answer

Connect dual monitors

The port with 15 holes is a VGA connector and most monitors have a connection for those it's a blue connector. The other you describe sounds like a DVI connector. Most new monitors have that as well and it's a white connector.

11750867-tewsfb12kpevcqwroz5uwqx5-2-0.jpg Once you have both monitors hooked up and turned on, they should automatically come on and show your Windows desktop. You may have to tweak the resolutions if the monitors are different. That can be done in the resolutions settings : Control Panel\Display\Screen Resolution

This video, starting around the 2 minute mark, gives a good overview of those settings and what they do.
How to Windows 7 Multiple Monitor Setup

One thing he mentions that is important is that the monitors are set to the right inputs or source. Look for a button, usually on the right or bottom of the monitor, that says "source" or "input" or has a symbol of an arrow pointing at into a screen - it looks like #2 in this photo:

The monitor connected with the blue VGA connector usually says "VGA" or "Analog". The monitor with the white DVI connector usually says "DVI" or "Digital".

Good luck!

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When I turn boot up my gt5220 the monitor briefly flashes and then goes into power saving mode- desktop stays on, fans running and all, until turned off by holding power button down or unplugging it.... my...

first try to connect another power source if it does work that is good then try the other options 1- rams 2- vga card 3- cpu 4- of course there is always the motherboard option....
i had the same problem several times mostly it is the power supply ( the power source ) sometimes gives a weak voltage or amps....

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Do you have another monitor you to try? . If not just endure the graphic card is seated correctly inside your PC and also chck the Monitors data cable is cnnected correctly. Check the pins onthis cable and ensure they are not bent. If the monitor is old the internal power supply is normally one of the first things that go wrong and can be difficult to source for replacement. Usually the price of these are prohibitive and a replacement monitor will be needed if indeed the monitor is at fault

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Computers has power but will not turn on monitor,fans on blue light on, yellow light constant. cd slide opens and closes normal.

First the obvious, monitor is on? Cables are connected securely to back of monitor and PC? Power cable/power adapter are all connected and plugged in? If a power adapter is used, it will feel warm.
I am assuming it was working on some point and then stopped.

If you are getting power to monitor and it's power light is on, then I'd suggest a problem with the video output on PC

If you are not getting power to monitor or it's light is not on, the problem is with the monitor.It may have gone out on you. Try attaching to another computer.

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Boot up computer. Nothing comes up on screen. Get a message:"information. No input signal." Everything is plugged in correctly.

  • check the cable on the monitor screen
  • if after removing the data cable from the computer and it has no vertical color screen then
  • try other data cable
  • try other monitor screen

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