Question about ViewSonic VA720 17" LCD Flat Panel Monitor

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Monitor on and off continuously

I can't get monitor to stay on signal. goes on - all of a sudden pc reboots and signal goes off - then on - then off - on and on and on. i am a beginner so make it an easy answer

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First power down your pc.. Then unplug your pc and your monitor..Wait 10 minutes then plug in and power up.. good Luck

Posted on Jun 30, 2008

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Posted on Jan 02, 2017

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1 Answer

When my monitor goes idle, I can't get it to come back on. I eventually have to shut it down and reboot. And then maybe it will come back on. Why...it didn't use to do that before:


I dont know the answer but i also got the same problem.. When i start my pc suddenly one flash will come in monitor and go. then i've to reboot my pc through switching off power and then on(Cause nothing in monitor i cant see anything for turn off or restart) then may be on 2nd or third reboot screen will come..

Dec 09, 2010 | ViewSonic VA712B 17" Flat Panel LCD...

2 Answers

My monitor suddenly lost signal and hasn't returned


do you mean the processor fan that is located near on the left top corner on the motherboard? if that stopped working then turn of your pc immediately. probably the cpu overheated. if that fan does not work replace it immediately as it will burn the cpu.

Jan 25, 2010 | eMachines T6534 PC Desktop

1 Answer

I have hooked everything up and the monitor shows " no signal".


are you using the onboard? video... or a seperate vid card? if it was working and then suddenly quit? the onboard vid chip is out! cant replace that either try adding a seperate vid card and reboot

Jan 13, 2010 | E-Machines eMachines Desktop PC

1 Answer

Screen comes on says Acer then No Signal, and goes out. if shut power off and then back on get same result.


This means the monitor believes it's not connected to the computer. Verify the cables first of all. Then try booting in safe mode (F8 key at PC startup) in order to verify that the PC is sending data to the proper video port (you might have a dual VGA / Digital output, for example, and the monitor might be connected to the wrong PC port). Quite often, a "bad signal" will be the same of "no signal"; and you can have a bad signal if the monitor resolution on the PC is set too high. This could happen if you installed a high-resolution capable monitor, and then replaced it with a not-completely-plug-and-play, lower resolution one. The PC would keep sending hi-res signals to a monitor which can neither interpret them, nor tell the PC "please slow down". To check this last possibility, reboot your computer while the monitor is ON. When PCs reboot, they usually drop back to standard VGA signaling, which all monitors understand. If the monitor abruptly comes to life and displays a boot screen, then goes No Signal again after several seconds, you've got a resolution issue; get in Safe Mode with F8 key at boot, and modify the screen properties (right-mouse button on the desktop, then Properties).

If everything else fails, try also connecting the monitor to another PC or laptop, to see if it works there.

Dec 04, 2009 | Acer AL2223W 22" LCD Monitor

2 Answers

All of a sudden my monitor has 'no signal'. I


The wire may be shot. Try purchasing a new connector wire.

Nov 27, 2009 | ViewSonic VA720 17" LCD Flat Panel Monitor

1 Answer

Monitor stopped working...checked all connections...light won't stay on green. bought a new monitor to replace it and that monitor says "no signal". is this a problem with the dell computer and not the...


Your monitor is going into power saving mode. When it receives no video signal from the computer, it will stay powered for a few seconds before giving up and presuming the PC is off hence why it stays green for a while, then goes orange.

The problem is with your PC not the monitor(s)

Jul 07, 2009 | Dell Computers & Internet

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

2 Answers

No Video Signal


reboot in safe mode, safe mode will put the pc in vga mode and use whatever video it can find.

If no good U may have a problem with the MB.

May 23, 2008 | Gateway GT5228 PC Desktop

1 Answer

Black screen not booting


check both your power and video connections to the monitor, sounds more like a monitor power issue.
if the connections appear ok, but screen still blank, try connecting a known good working monitor from somewhere else and see if it works with your pc, if it does, your original monitor is faulty, if it doesn't, you have a pc video issue.

Jan 14, 2008 | HP Pavilion a305w (DM181AR) PC Desktop

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