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Monitor says no input signal and then goes to sleep.

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  • Anonymous Sep 05, 2008

    i just keepon turning on the monitor until it stays on

  • Anonymous Dec 24, 2008

    I have the same problem. I try everything unplug the VGA cable and put a bring new one then restart the computer. Same result. 'No Input Signal'.

    Any idea anyone?

  • dearmarymary Jan 04, 2009

    I have the same problem wih nmy HP w1907 going to sleep and saying no input



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  • 151 Answers

Check vga cable and video section that is placed on crt neck.Hope this solution works

Posted on Aug 01, 2008


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Monitor goes to sleep immediately after turning on the computer. How can I fix that?

go to start,then pc settings,then monitor or power options the to power and sleep and change on plug to 4 hours and on battery to 10 minutes

Jun 11, 2015 | Computers & Internet

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you can't run 2 different inputs at the same time. VGA takes prescedence.

Apr 06, 2014 | HP L1950 Monitor

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I have a 19 inch Gateway HD monitor. The model number is LP1925. When I boot up everything is normal. However, after about 5 minutes the screen goes black. I can't get the picture back unless I pull out...

I see that this monitor has a DVI input, in additon to the VGA input. I suggest getting a suitable cable to use the DVI input, to see if the fault replicates. If it doesn't, you have identified the problem - an issue with the analogue signal processeing circuitry in either the monitor or the computer. The monitor's auto sleep analogue circuitry, for example, may not be sensing a signal, and going to sleep. BTW, if you use a DVI-DVI cable, you avoid the video signal ever going through an analogue stage, and the image will also be purer.

Dec 16, 2017 | Gateway 19" Widescreen Flat Panel TFT LCD...

1 Answer

HPW1907 monitor goes to sleep and says no input signal. Why? How do we fix this problem?


Your monitor is not getting the input signal from your computer. Check to see if the cable from the monitor to your computer is snug.

Test this monitor on another computer, if possible, to see if your monitor or computer is the problem.

Hope these suggestions help.

Oct 23, 2010 | HP w1907 LCD Monitor

1 Answer

Monitor goes to sleep when computor is turned on no input signal

If the monitor is going into sleep mode the normal power led will change to another color. This indicates loss of video signal or possible out of range resolution. If the picture goes dark and the power lite stays on, you have a backlight malfunction. It can be bad capacitors causing an inverter power fault or it may have worn out backlights causing a shutdown condition.
Monitor Mike

Aug 17, 2010 | HP w1907 LCD Monitor

1 Answer

No input signal

that is the problem of cpu not a monitor to confirm disconnect signal cable and power on. monitor will show "no signal check signal cable" it means that monitor is ok and fault lies in cpu .then open the cpu and disconnect ram and listen the beep. contineus beep should be heard then ram is faulty replace it. if no beep heard then motherboard is faulty .

Mar 08, 2010 | HP vs17

1 Answer

Screen shows message "no input signal" and monitor goes to sleep.

monitor show "no input singnal" error masage when not gating any type of video singnal ,
so if u realy check your monitor wires for correctty plugged in .

Two possibilities:

either the video/mainboard of the monitor is defective; or
the video card/ CPU is the faulty.

A way to verify is to try the PC with another monitor or to try the monitor in another PC.


Apr 30, 2009 | HP vp17 Monitor

1 Answer

Monitor goes to sleep no input signal only 1 mo old

Normaly the monitor is not picking up the signal from the PC, it could be VGA cord is not connected, faulty, or the video card is faulty,or the monitor is not compatible to the PC. It could be one of my suggestions. Trouble shoot by connecting your monitor to another working PC and see what happens.If not the VGA cord is faulty and not picking up signal from the PC. Hope it helps.

Jan 21, 2009 | Computers & Internet

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