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Laptop screen not working willwork through external monitor

The computer screen is not functioning but i can plug in external monitor and computer will work through that

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Check your inverter, or vga cable maybe loss only or some problem of inverter

Posted on Jun 02, 2009

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Posted on Jan 02, 2017

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2 Answers

Can i connect my laptop to a crt monitor if my unit has no display


Many laptops have the ability to connect to an external monitor. On most the monitor can be used in a manner similar to a projector output for presentations. On some the monitor can be configured as an extension of the desktop, essentially giving you a double wide screen.

If the problem with your laptop is with the LCD display and not with the display circuitry, it may be possible to use it with the external display. If the problem is not with the LCD screen, chances are that the external monitor won't work either.

Sep 08, 2016 | Computers & Internet

1 Answer

My laptop Gateway ml6720 has a black screen Ive replaced the battery and power adapter no change. The fan comes on and it sounds like it boots up but no screen.


Sounds like either the screen or the video adapter has gone bad.
Do this: Connect the computer to an external monitor (there is a SVGA plug on the side of the computer. Be sure when you turn it on that you press teh Fn-special function key combo that switches the video output to the external monitor. If the external monitor works, then it's your computer's screen. Possibly the inverter. If the external monitor shows nothing, then it's the video card (which may be built into your motherboard).

Oct 05, 2011 | Gateway Computers & Internet

1 Answer

Hi, I have an LG Flatron L227WTG monitor. I have 2 computers on my desk. When I plug the monitor directly into my home computer, the monitor works just fine. When I plug it into my work laptop (via a...


Hello, maybe you've got to switch the output from your laptop screen to the external screen, if so, it will be by pressing and holding down the Function button and at the same time pressing one of the Function keys (at the top of your keyboard). On mine, (an HP) it's F4, but you'll see a symbol on the correct key that looks like a screen. Regards, nicam49

Jul 13, 2011 | LG 22" FLATRON LCD Monitor

1 Answer

My screen doesnt work. it stays black when i turn the laptop on


If the laptop sounds like it is running and you have no display you can try to plug in an external monitor to it. (any computer monitor will work, just plug the data cable in to the blue VGA receptacle on the back or side of your laptop). Turn on your laptop and look at your function keys on the keyboard. One will have a monitor symbol (maybe F4). Push that function key to switch to external monitor. If it displays on the monitor then you know your computer is okay and that the problem is with your LCD screen. If there is no display then most likely you have a bad video chip on the motherboard and will have to replace the board.

Apr 07, 2011 | Acer Computers & Internet

1 Answer

My acer KAV 60 screen is not working. the hard drive boots and it charges but nothing happens on the screen. It just remains black. I did't drop it or spill liquid on and it's only a year old.


In order to check what is really not functioning. Your laptop have a video port for external monitor which is color blue often at the lower back of your lcd screen or at the side. Plug the CRT or LCD monitor to your vga(video graphics adapter) port to check if your laptop is still functioning. If there is a display on your external monitor that means you have to replace your lcd monitor. If there is no display with external monitor check your memory or ram by unplugging your memory then clean it with a hard eraser the memory pin and then put it back again and turn on your computer to test if already functioning. If the above procedure didn't work you have to bring it in a computer repair shop. Have a good day!

Dec 20, 2010 | Acer Aspire One PC Notebook

1 Answer

HI I have used LG Flatron L1915S computer monitor. When I plug it into my laptop, it blinks showing the laptop desktop for less than a second then goes black. Other monitors works fine when I plug them...


There is often a function monitor key on the laptop, located near the F7 key area, the icon looks like a monitor on|off and is typically in blue. this key is to be used in combination with the Fn key to enable, disable the external monitor or enable both monitors or just the laptop. Press the key combination until your laptop panel lights up while the monitor is plugged in. Now check your extenal monitor refresh rate and resolution slider settings by right clicking on your desktop go to properties / video settings. (please note monitor settings are under advanced). You should see two monitors in there now. use "identify" button so you know which one to work with. on the external monitor settings, decrease (slide left the slider all the way). If you can set the monitor refresh to 60Htz. Lastly take a flashlight and check if you can see a shadow of your screen on the external monitor, if you can that means the backlight is not working and likely needs the inverter replaced. Hope that helps ! Cheers

Aug 30, 2010 | LG L1915S 19" LCD Monitor

3 Answers

My screens broken how do i get the picture to work on a monitor


  1. Identify the VGA port on the laptop (check all sides) It'll look like this:785661a.jpeg
  2. Connect your Monitor cable to this port and turn it on.
  3. Now you need to switch your laptop display to the external monitor. Identify the Function key (F1 to F12) that has a monitor icon on it. Press Fn + that function key with the monitor icon. Wait 5 to 10 seconds and check if the display comes on on your monitor. If not press the key combination again.

Oct 21, 2009 | Compaq Presario C700T Notebook

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Laptop screen does not work when plugged into projector


If you connect a laptop projector or external monitor before you boot up your laptop, the video most likely will go directly to that external device. To have both the laptop LCD and projector you will need to press the Function key that has the monitor/laptop symbole (this key will be a dual function key and you will need to press the Fn key first and then the Function key with the monitor/laptop symbole. This Function can be any key between F3 and F12, it depends on the brand of the laptop.
When you press this key it will toggle between
LCD only
External monitor/projector only
or both LCD and external monitor/projector

Nov 27, 2008 | Computers & Internet

4 Answers

Accessing data of a "dead" computer


The easiest is to connect a standard CRT monitor to the external video port. Enable this from the laptop using the function key. One of the functions keys should have what looks like the outline of a standard monitor on it. Using the CTRL key and that function key will turn on that video port.
Dan

May 12, 2008 | IBM ThinkPad G40 2388 Notebook

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