Question about PC Desktops

1 Answer

I have an LG laptop connected to an external monitor. It has worked in the past. In the last week when i turned on my laptop the external motitor showed the boot up process right up until the final desktop screen appears when it says 'no signal'. I have managed to get the external motitor to display my background pic but nothing else. Help please.

Posted by on

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    MVP:

    An expert that got 5 achievements.

    Mentor:

    An expert who has written 3 tips or uploaded 2 video tips.

    Governor:

    An expert whose answer got voted for 20 times.

  • Expert
  • 106 Answers

There should be a button on the keyboard that controls the output...it is done by pressing the Fn key (function) in combination with the Fkey (all those F1..F2..and so on next to the Escape key) Also, you can Right click anywhere on the desktop (the first screen you get when the computer boots to Vista) and when you get the set of menus, choose the bottom one calle "Personalize" This will bring up the "Personalization" screen. Here you can choose the bottom "Display Settings" to make sure you have your second monitor (external) ready under the "extend my desktop onto this monitor" check. Go on and click on the #1 screen and the #2 screen and play with the options so you get a good feel for them and to see wich one works best for you.. Hope this helps.

Posted on Jul 21, 2008

Add Your Answer

Uploading: 0%

my-video-file.mp4

Complete. Click "Add" to insert your video. Add

×

Loading...
Loading...

Related Questions:

1 Answer

Laptop white screen


Having a laptop screen turn white is one of the most frustrating problems a user can experience since it prevents use of the laptop to find a solution.
A white laptop screen indicates a serious problem with the laptop's hardware, and no easy solution to this issue exists.
Just diagnosing this condition requires advanced computer knowledge.
Identification

With this problem, the laptop itself will power on and load the operating system as per usual, but the screen will become a complete, static white, according to LaptopRepair101.
No particular brand or make of laptop falls prey to this issue more than any other; it can happen to any laptop.

Causes
Since so many different brands and models of laptops exist, specific causes of a white screen vary from laptop to laptop.
The likely cause in most cases of a white screen on a laptop is a connection problem between the LCD screen and the video cable running from the motherboard.
The issue can also reside strictly with the motherboard or the screen might contain a defect.

Considerations Users can diagnose a white screen problem by opening up the laptop display case to determine whether a loose video connection on the back of the LCD screen exists.
Reconnecting the video cable should resolve the white screen; a video cable reconnection that does not fix the white screen narrows the root cause to a problem with the motherboard or the screen.

Motherboard Problems
The only way to determine if the laptop screen turns white due to a motherboard problem is to test out a different, working LCD screen with the laptop.
This requires the user connect the inverter board--the power supply for the LCD backlight and the video cable to the test LCD.
If the test LCD works with the motherboard, then the laptop's screen needs replacing; otherwise, a new motherboard is needed because there is no way to replace an integrated graphics card on a laptop motherboard.

Prevention/Solution
Taking apart a laptop screen may make some users feel uncomfortable, so you can use an external monitor connected to the VGA port common to most laptops if the processor and hard drive still work fine. Using an external monitor requires finding the proper function key command to toggle between the LCD and external monitor.
Warning
Taking apart the LCD screen on a monitor likely voids any manufacturer's warranty.
Consider visually checking the video connection to the laptop screen as a last resort if no other viable options exists.
The service manual that came with your laptop likely offers some tips to disassembling the computer, or conditions that could void the warranty.

http://www.laptoprepair101.com/laptop/2008/04/13/laptop-lcd-screen-turned-white/

Jul 02, 2013 | Dell Inspiron PC Desktops

1 Answer

How do i switch to external monitor


Virtually all IBM and Lenovo ThinkPad and ThinkCenter laptops allow you to hook up an additional monitor or projector to the computer. When you add an external monitor or projector to your notebook, you can choose to view the display on the computer, on the external device, or on both the laptop and the external monitor or projector at the same time. Toggling between viewing devices is as simple as pressing a couple of keys on the keyboard.

Shut down the laptop. Plug the VGA monitor cable from the external monitor or projector into the blue VGA port on the back of the computer. Turn on the external monitor or projector first, and then the Lenovo laptop. Allow the notebook to boot into Windows normally. Press the "Fn" and "F7" keys at the same time to switch the display from the laptop to the external monitor or projector. Press the "Fn" and "F7" keys again to enable the display on both the laptop and the external display device. Press the "Fn" and "F7" keys again to display screen contents only on the laptop LCD. choose support you need http://www-307.ibm.com/pc/support/site.wss/MIGR-54305.html http://www-307.ibm.com/pc/support/site.wss/MIGR-4YQHUC.html enable tv out on thinkpad http://www-307.ibm.com/pc/support/site.wss/document.do?lndocid=MIGR-58625

Feb 13, 2013 | IBM Lenovo 3000 N200 PC Desktop

1 Answer

I have a dual display with a Samsung digital LCD flatscreen and LG analog LCD flatscreen running on WinXP with a nVidia GeForce 8400GS video card. The video card is new - the old card (which was hooked up...


Hi

I'm not sure what you mean by VGI. I will assume you mean VGA (Analogue - D Shaped with 15 pinholes).

When pixels or line of lixels fail on a monitor, they usually fail in spots or in a vertical lines due to the design of the matrix.

Since both monitors are sharing a single cable and the graphics card is a new one, the fault automatically isolates itself to either the monitor or its VGA connector.

Check that none of the pins in the end that connects to the faulty monitor are bent and/or touching one another and shorting.

Then try changing the resolution of the graphics card itself and test the monitor's performance at various settings to see if the resolution seeting is straining against the limits of the monitors range.

Right click on open space in the desktop > properties > settings > click and hold the slider scale step by step, up and down the scaled to test the monitor > apply > ok > test for a reasonable period > reset.

Also test the monitor with a single VGA cable to another computer (even a laptop, using the Fn key + external monitor function key).

Thses tests should tell you if the monitor is failing.

I hope this helps.

Aug 24, 2011 | PC Desktops

1 Answer

Toshiba laptop satelite a135-s2386. I went to turn on computer and there is power but the screen is black. Thanks!


connect an external monitor on the unit and press the key combination to get the video on an  external monitor this is different on some laptops on HP dv 6000 for example it is FN F4 if external monitor work the problem is with your laptop display if the external monitor doesn't work its probebly your systemboard als check your memory.

May 04, 2009 | PC Desktops

1 Answer

No power on laptop screen


Hello,
The first thing to try is to hook up an external monitor to the laptop.
If the external monitor works then it is either the LCD screen or the backlight for the LCD. If not then it is probably the video card inside the laptop.
Also check the "function" (Fn) key combinations on the keyboard, you might have shut the screen off with the Fn keys accidentally.
Hope this helps.

Apr 26, 2009 | Acer PC Desktops

1 Answer

SCREEN WONT TURN ON


Connect an external monitor (CRT or LCD) to the laptop's "VGA-out" port. Then, turn your laptop on. Does it show the usual "start-up" screen, on the external monitor? If so, then either your laptop's screen is totally-dead, or the "LCD-inverter" (a $20 part that takes $50 for a technician to replace) needs replacement.

Or, does your laptop have a key-sequence (LCD-screen-only, LCD-and-external, external-only) that needs to be used to select LCD-only mode?

Apr 23, 2009 | PC Desktops

1 Answer

I can turn my laptop on but the screen is black


Hi,


Do you hear a beeping sound when turning it on? Try connecting an external monitor (Desktop monitor) then press FN+F8 (Dell laptop only) and FN+F4 (HP laptop only). If it works on an external monitor, you may need to contact your computer manufacturer. check the warranty and request for an LCD monitor replacement.

If you hear a beeping sound when turning on your laptop or no power (no light). you may need to reseat the memory (RAM) or check the AC adapter (power adapter).

Let me also know the system model and computer manufacturer.

Keep me posted.

Thanks.

Oct 18, 2008 | Acer PC Desktops

1 Answer

Acer laptop wont't turn up...


yo...

good to hear... least we know what is wrong...

so it can be one of 3 things... the first 2 are the most common and the last one can happen but I haven't seen it happen too often.

1. LCD control board is busted. Usually a circuit board that controls the picture going to the LCD screen. Usually built into the LCD monitor.

2. LCD screen is busted. The screen itself is busted.

3. Video card on the laptop is busted.

I'm going with 3 as you typed the system can't find the video card on the laptop. Try going to device manager and try to see if the computers/windows detects the video card. If it pops up you can try re-installing the drivers for the video card.

Check for any "Unknown" devices as that might be the video card itself.

Let me know what you found...

P.S. please rate my Solutions... Thanks

Aug 15, 2008 | PC Desktops

1 Answer

My Amilo A1630 laptop is not working. The screen will not come up at all. Power switch is turn on and the green light is on. Any ideas what is wrong?


To isolate the problem try this:

Plug your laptop to an external monitor using the monitor out port on the laptop. Hit the "function" key and the corresponding F key that has the LCD Screen/External Monitor icon. Usually around F6-F8 or so.

This will test if there is something wrong with the screen and if the laptop is booting up past the BIOS.

Please comment back with results.

Aug 14, 2008 | PC Desktops

Not finding what you are looking for?
PC Desktops Logo

Related Topics:

35 people viewed this question

Ask a Question

Usually answered in minutes!

Top PC Desktops Experts

joecoolvette
joecoolvette

Level 3 Expert

5660 Answers

Brian Sullivan
Brian Sullivan

Level 3 Expert

27725 Answers

Les Dickinson
Les Dickinson

Level 3 Expert

18297 Answers

Are you a PC Desktop Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...