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Just got a new computer windows 7 - monitor has power but no computer signal

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Take it back - if you don't get any signal, not even from the BIOS, then it's a hardware fault. Don't try to fix it yourself, you would void the warranty.

Posted on Dec 28, 2010

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Posted on Jan 02, 2017

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LG M197WDP, used as a monitor with a Windows 7 computer. Intermittently the monitor goes black for 15 to 20 seconds then the picture returns. I have checked drivers etc all up to date. Anyone able to


Could be a hardware issue, If the screen has a power light, does it change coulor (often green to orange) when the problem happens. If so its the screen inst getting any signal. It could be a connector or cable.

Nov 01, 2014 | Computers & Internet

1 Answer

The screen reads no signal


eMachines flat-screen monitors offer high quality at low cost.
eMachines flat-screen monitors are compatible with most brands of PCs.
Issues with eMachines flat-screen monitors can arise from faulty power sources, cable problems and incompatible settings.
These issues can be resolved by testing step-by-step each possible cause.

Plug the computer's power cable firmly into a working AC outlet.
Press the computer's power button.
Check the LEDs on the front of the computer case to confirm that the computer receives power.
Plug the eMachines monitor's power cable into a working AC outlet.
Press the monitor's power button.
Check the LEDs on the front bezel or power button of the eMachines monitor to confirm that the monitor receives power.
Orange or blinking LEDs indicate low power or no signal.
Green LEDs denote a working connection..

Perform a monitor self-test.
Switch off the monitor.
Unplug the video cable from the monitor.
Press the eMachines monitor's power button.
An eMachines logo, Windows logo or "no signal" message indicates that the monitor is working properly.

Plug the eMachines monitor's video cable into the video port on the computer.
Attach the monitor's included DVI-to-VGA adapter to the monitor's VGA cable if your computer has a DVI port (15 or 25 pin-slots with 1 side slot) in place of a VGA port (15 pin-slots, no side slot).

Press the eMachines monitor's input button to change the monitor's setting to match the computer port used.
Set your monitor to DVI if connected to your computer's DVI port.
Set your monitor to VGA if connected to your computer's VGA port.

Connect the eMachines monitor to a known working computer with a known working video cable if the problem persists. Contact Gateway, eMachines manufacturer, if the monitor issue is not resolved.

Jul 15, 2013 | Acer eMachines Black EL1850G-42w Desktop...

1 Answer

Norcent Technologies LM173SB 17 in. Flat Panel LCD Monitor Won't work with Windows 7


I ran into this very problem myself, the issue is that the monitor only supports 1280x1024 resolution MAX. Windows 7 cannot detect this monitor and so it does not know it is limited to this resolution, so Windows 7 is putting out a higher resolution at startup, thus the monitor tries to autodect for a second but then just goes blank because it doesn't understand (and can't display) the signal. The only solution is to use another monitor and adjust the resolution to 1280x1024 or lower, but I run into a problem where as soon as you remove the other monitor and restart, WIndows tries to "plug & play" the monitor all over again at startup. So you're best bet really is a newer monitor unfortunately, I only use my old Norcent monitor with my XP computer.

Aug 29, 2012 | Norcent Technologies LM173SB 17 in. Flat...

1 Answer

The monitor is not registering that it's hooked up to a computer. It turns on, but the power light just blinks like it's in sleep mode or not connected to anything. I tried hooking it up to two different...


When its hook up to the computer, turn on both monitor and computer.

While the monitor is turn on, disconnect the vga cable. Will this display a No Signal error?

If yes, then a problem with the mainboard of the monitor, buy a new monitor.
If no, problem with the power supply section of the monitor. Replace the leaking and blown capacitors with same value.

Feb 11, 2011 | Samsung 932BW Monitor

1 Answer

Just got a new computer with windows 7. my monitor says no signal found when i turn it on.


Check to see that you have plugged it inot the correct port eg: pc hdmi to monitor hdmi or vga(dsub) to vga or DV to DV and the the correct source is selected on the monitor failing that you have a graphics card error.

Oct 24, 2010 | Westinghouse 22" Widescreen LCD Flat Panel...

1 Answer

Screen blank green light flashing slowly


chriswowe359

Normally when the power light is flashing green on the monitor this means that the video drivers are having problems.

Note with LCD monitors they are very picky about the signal that they get and if they get a signal that they can not support they will go black to keep them from burning out.

The best way to fix this issue is to connect a CRT monitor to your computer and reboot the system. After you reinstall the video card driver you may need to also install the actual monitor drivers for the monitor. Note in most cases the default Windows driver will send the proper info over to the monitor but in this case that driver is where the problem is and updating to the actual driver will help keep this problem from happening again. The link below will show you how to update the monitor driver in Windows 7.

How to install your monitor drivers in Windows 7

If you still have trouble or do not have access to a CRT monitor you may want to try the monitor on another computer. If it works then you will need to back up your data and reinstall Windows on your computer.

Let me know if you have any more problems or questions

Issken
http://www.fixya.com/users/issken

Oct 01, 2010 | Dell E173FP 17" LCD Monitor

2 Answers

Monitor keeps going into sleep mode and it won't turn on so i can use it.


Monitors go to SLEEP mode when there is no computer signal coming into them. As soon as a computer signal reaches the monitor, it will automatically wake up and show the images in the screen.

Mar 27, 2010 | HP Compaq FP5315 15" LCD Monitor

1 Answer

My monitor quits after a while with the message no signal. It is a new computer with windows 7 and a new monitor.


Check the cord connection between the monitor and the computer (always check physical connection first, ie...replace the cord) if that doesn't solve the problem install any software that came with the monitor and or check the monitor manufacturer's website for any fixes for such an issue. Then move on to the video driver to see if it needs to be updated.

Dec 15, 2009 | Medion Computers & Internet

1 Answer

When i try to turn the viewsonic on the green power button comes on for approx. 7 seconds then flashes off without any picture appearing on the screen. The red power button does not come back on until i...


This generally means the monitor can not detect a video signal. Have you tried a different monitor? Or try the monitor on a different computer.
If those are not options, check you video card and try to boot Windows in Safe Mode (VGA resolution).

Jules

Jul 24, 2009 | Computers & Internet

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