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Monitor says no signal to computer.having trouble getting computer to come on.sleep mode comes on.

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Check your cable connections.

Posted on Nov 20, 2009

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Screen remains black when coming out of sleep mode asus a8n-vm cms motherboard


IT is most probably windows 7 issue. I saw problem with desktop computers coming back from sleep for many times.

I advice you to avoid sleep. If that is not issue, first test memory, cause sleep stores everything to the memory.

Please tell which OS you use ? As said on start it might be Windows 7 ...

Oct 10, 2013 | ASUS Computers & Internet

2 Answers

I have my acer p205h 20 inch monitor hooked up to my tobshiba laptop and it works great except it will not go into sleep mode when laptop goes into sleep mode the monitor goes to there is not signal check...


Unfortunately, this is a standard problem, as when your laptop goes into sleep mode, it shuts off power to the secondary monitor, without giving it the signal to go into sleep mode. You could try digging around your settings, but most likely you'll just need to turn off the monitor when you're not using it.

Mar 01, 2011 | Acer P205H Widescreen LCD Monitor

1 Answer

HP monitor going into sleep mode right after turning it on


If it goes in to sleep mode, that means that the monitor is not getting a signal from the computer.
The things to try (from simplest to most complex) are:

  1. Make sure the computer is on and not in "sleep" mode -- press the "Caps Lock" key and see if it lights up the caps-lock light on the keyboard.
  2. Make sure the video cable is connected from the computer to the monitor (that the cable hasn't come loose on either end)
  3. If your monitor has multiple inputs, make sure it's set to the right (probably analog VGA or DVI) input
  4. If your computer has more than one video output (like a laptop with it's internal screen plus the external monitor) then make sure the external monitor is enabled
If none of those solve it, post a comment back here and we can dive in to the more complex tests

Sep 06, 2010 | HP w1907 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

Why does my monitor say "no signal" when you try to us my computer after it has been on sleep mode?


The computer turns off the signal to the monitor after it goes into sleep mode. You can adjust the power settings in the computer to not turn off the monitor.

Sep 21, 2009 | Acer X193W LCD Monitor

1 Answer

Does samsung monitor save power in sleep mode?Or will it just displays black all over the monitor?


yes, all monitors work directly with the cpu, the cpu sends message to the monitor, so if the system is in sleep mode, automatically the monitor stops work excepts the cpu comes up again then the monitor wakes, in a nutshell, a monitor is connected to power while in sleep mode but has no signal to function

Jul 16, 2009 | Smart Modular SV3170A

1 Answer

Won't come out of sleep mode


Have you tried getting a second monitor ? then using it to get to the desktop and go to power options and set your monitor to never turn off? after that is done try your monitor again and see if that works.

Feb 07, 2008 | KDS Radius RAD-7 17" Flat Panel LCD...

1 Answer

Won't come out of sleep mode


Is this monitor connector to PC? is yes most probably the problem is the system is not sending signal to tell your monitor to wake up...

Aug 30, 2007 | Sharp 17" Monitor

2 Answers

When I select sleep or hibernate mode - the monitor stays black...


Hit the keyboard keys. It is better to just turn sleep and hibernate off and just use a screen saver or tun it off.

Aug 24, 2007 | ViewSonic VX910 19" LCD Monitor

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