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The standby light [when the three shut down icons appear] isn't working nor does it switch to the standby mode,is there a fault with my LCD monitor or is there another reason.

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Standby needs to be set up.

  1. Start
  2. Settings
  3. control panel
  4. Power Options
  5. Power Schemes, system standby, system hibernate

Posted on Mar 05, 2008

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Dell backlight indicators


A computer monitor has a front-mounted LED that displays its current status and flashes in the event of an error. When an error occurs, the flashing may be accompanied by an error message on the screen. If the screen does not display an error message, the problem most likely falls into one of four common categories.

Unsupported Display Mode A video card has the ability to send output to the monitor at many display resolutions and refresh rates. However, no single monitor is capable of supporting every possible display mode. When the video card sends an unsupported display mode to the monitor, the monitor shuts off to prevent damage and blinks, or displays an error message. Standby Mode b> When a monitor detects no video signal from the computer, it assumes that you have turned the computer off and enters standby mode to reduce power consumption. Dell and HP monitors display an amber light when in standby mode. The status light on an Apple monitor blinks slowly. Incorrect Power Supply Some monitors such as certain Apple Cinema and Studio displays use external power adapters. Because different power adapters may have similar connectors, these monitors are designed to detect when an incorrect power supply is connected and blink the status LED rather than attempting to turn on. In the case of an Apple display, the LED blinks in an alternating short and long pattern. b> Backlight Failure b> A flat panel LCD display has an LED or fluorescent backlight that illuminates the pixels and makes it possible to see the contents of the screen. If the backlight fails and requires replacement, the monitor is unable to display any information. In some cases, you may be able to resolve this issue by turning the monitor and computer off, disconnecting and reseating all cables. If the monitor still has a backlight issue, it requires professional service.

Jan 14, 2013 | PC Desktops

1 Answer

Won't go into sleep mode


Which operating system ?


Sleep mode on a Windows 7 PC saves power without you having to turn your computer off and without losing any work.


This option cuts the power to your monitor, powers down the hard drive and pauses all functions until you awaken the computer from hibernation.


Whether you have a laptop, desktop or workstation, putting your computer into sleep mode will lower your electric bill and save money!


Click the "Start" button in the lower left corner of your desktop. In the lower right corner of the Start menu, next to the "Shut Down" button, is a button labeled with a small, right-pointing arrow. Mouse over the arrow.


The Shut Down menu appears.

Point at "Sleep" and click on this option.

Your Windows 7 computer goes into sleep mode.


Wake your computer from sleep mode by jiggling the mouse.

There may be a delay of a few seconds before your hardware powers on.


All of your open programs are still open and your work is intact, just as you left it before the computer entered sleep mode.


Configure your Windows 7 PC to go into sleep mode automatically when it is not used for a certain amount of time.


Click "Start" and select "Control Panel." Click "System and Security."

Click "Power Options."

A menu opens.


Click on "Choose when the computer sleeps" and select the number of minutes of inactivity. You can also set a separate time interval to put your monitor into sleep mode.


If you set both to 10 minutes, then your PC and monitor will automatically go into sleep mode after 10 minutes of inactivity


Your Computer in sleep mode


First, save all of your work. Information in computer memory is not saved while your computer is on standby.


From the Start menu, select Settings, then Control Panel, then Power Management.


Click Standby Beside When I Push the Power Button.


Push the Power button.


Automatically Putting Your Computer on Standby


Save all work before leaving your computer.


From the Start menu, select Settings, then Control Panel.


Double-click Power Management.


Set the times that you want your system to go on standby, to shut off the monitor and to shut off the hard disks.


Click OK. Your computer will go on standby according to the schedule you have entered.


Putting Your Computer in Hibernation


From the Start menu, select Settings, then Control Panel.


Double-click Power Settings.


Click on the Advanced tab.


At the When I Push the Power Button On My Computer screen, click Hibernate.


Click the Power button.


Hope this helps.




Nov 25, 2012 | Dell Factory Refurbished 4700-HH79N81...

2 Answers

Is my computer in standby mode?


Make sure you have the cable that plugs into the back of the computer from the monitor screwed in tight. Also make sure the cable on the back of the monitor is screwed in tight and also that the power cord on the back of the monitor is pushed in all the way.

I'm almost certain you're not in standby mode. Does the computer stay on when you get the no signal message? Do you hear the fan blowing, do you hear the disk drive spinning? If not, I think your system has completely shut down. I'm thinking maybe a virus or some hardware/software conflict is stopping it from completing the boot cycle.

Try getting into the Bios or System Setup to see if the LCD Stays on and the computer stays on. Turn the computer off, then hit the power button to turn it back on. Look at the lcd screen and it will tell you what key to hit to go into the Bios or System Setup. Go into it and let the computer sit for 10 minutes or so to see if it shuts itself off.

If you are successful with the computer staying in the Bios or System Setup lets try getting into Safe Mode and see what happens. Turn the computer off and hit the power button to turn it back on and immediately start hitting the F8 key repeatedly until you see the SAFE MODE option. Select the Safe Mode option and let the system boot up. Safe mode will look different to you. The icons will be bigger and the lcd screen darker, but that's normal. If you are able to see the desktop in safe mode just try opening up MS Word and maybe let it sit for a few minutes to see if it shuts off.

If safe mode was successful, then try booting it normally. If it fails, we know we've got an issue.

Mar 23, 2012 | Acer Aspire X3400 PC Desktop

1 Answer

Monitor is switching off immediately after system is switched on. Again when monitor is switched on, images appear for about 3 seconds and again monitor switches off.pl give the solution.


You need to determine if you is turning off or going into standby mode. When your monitor shuts off, the power light will turn orange if it is in standby or the light will turn completely off if the monitor turns off. If your monitor goes to standby, that means that your monitor is losing signal which indicates a problem with your PC. #1 Make sure cable is firmly secured and both screws are tight #2 Check your video card make sure that it is firmly in its slot. Take it out and put it back in. *as long as your computer is open give it a good cleaning with compressed air* If those things check out it is possible that your video card has failed and needs to be replaced.
If your monitor is powering off #1Check plugins- try something else (i.e. lamp) in the outlet #2 Try your PC's power cord in your monitor

Oct 21, 2010 | ViewSonic PC Desktops

2 Answers

Plugged up came on about 20 minutes later shut down and went to a yellow blinking mode monitor stays yellow i unplug monitor from cpu and works good do you have any suggestions


Could be getting too hot. Make sure all fans, cooling fins, heat sinks, HDD vents and weep holes are unobstructed and clean. Many computers have a BIOS screen at startup that will display system temp. Start it up and enter the BIOS, check CPU temp. Most PC's will shutdowm or reboot if temp exceeds 140 (this can be adjusted).

If not overheating, could be fault in a memory module, HDD failure, or CPU itself. But that's not that common in the scenario you're talkin about

Dec 11, 2009 | Dell OptiPlex GX260 PC Desktop

1 Answer

Monitor will not turn on including power switch


I suspect the power supply for the monitor. Try a power supply from a working monitor. If you have a used computer store nearby, take your power supply to them and try it on another monitor.

There is no need to turn off a monitor using its power switch. Monitors automatically go into standby mode when they are not receiving a signal. In standby mode they use less than one cent of electricity per day. If saving electricity is your goal, raise the temperature in your home by a degree and run the air conditioning less.

May 17, 2009 | Dell PC Desktops

1 Answer

COMPAQ PRESARIO DESKTOP PC SR1215IL. When switched on, cpu boots normal but no display on monitor. instead a sharp and bright blue vertical line appears for few seconds on the middle of screen. led of the...


tricky!! oh hi im Dyanne.. a totally unresponsive black screen can be th result of failure of th LCD or LCD inverter.( a specialized piece of electronics that energize th screen) to rule out th failure of th video display adapter or circuitry, try plugging in an external monitor..a standard pc monitor.. attached direct to th lappy. if it works, (as i susopect) th motherboard and video display are both working ok and its th LCD which is at fault. this can sometimes be repaired by a competent specialist. good luck xx

Dec 25, 2008 | Compaq Evo D300 PC Desktop

1 Answer

Is this a Software/Config/Hardware Problem ?


hmmm..sounds like a sleep or screen saver conflict...try booting up on Safe mode(F8) on turn on, and then see how that works. Set your screen saver for Never, and see what happens.

You may be hitting a thermal issue with your video circuitry.

Feb 18, 2008 | Dell Dimension 4600 PC Desktop

1 Answer

Windows shutdown


did u installed any new hardware? like network cards or something?

Nov 14, 2007 | PC Desktops

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