Lcd flat panel goes dead when is used as primary display
I got a desktop monitor from a friend, she said it just went blank. i have hooked it up to my laptop and it works great a the 2nd display and my laptop display is the first 1, but when i put the given display in the main position it just says no connection.any answers?
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Re: lcd flat panel goes dead when is used as primary...
Becuse u set primary disaply as 2nd .and alsio there is resolution problem.
set that monitor with your frineds desktop and when u power up the computer Press F8 key then
u got menu then go to enable VGA mode.then change your disaply resoluiton.to 1024*768.
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Each monitor has a different response to "no activity" from the system. So for the monitor, if you get a chance, try your monitor on another machine that you know does function. At work, neighbour, or other.
For the computer, does the it (beep) or POST (Power On Selft Test) when you turn it on, do you see and hear what you would if the monitor was connected?
If it sounds normal, then everything should be fine and luck might have it, your backup monitor is not working either, try another one from the same friend or neighbour above.
If it doesn't POST, you could have a video or other card or ribbon connection loose in the computer. Either you or a friend, or the service center, whichever feels comfortable reseating all the external and internal equipment, bearing in mind static electricity and proper handling measures for the computer.
If your LCD TV or monitor has stopped working, or is displaying one of the following symptoms, then it's a candidate for some new capacitors
- Flickering screen
- Screen image disappears after several seconds
- Dim screen
- Slow start
- Power LED on, but no picture
- Unusual colors and/or lines
The primary cause of LCD TV and monitor failure is caused by faulty capacitors. You can examine the capacitors in your LCD TV or monitor and actually see if they are bad.
If they appear bulged on top, then they need to be replaced.
New capacitors will solve a host of problems in LCD monitors and TV's and will extend the life of your monitor or TV by several years.
Check the cables, connectors and connections.
Take it to a repair shop.
That sounds like a display/resolution setting problem on your PC. I doubt there is anything actually wrong with the PC or the monitor, since both work with different combinations, so its most likely just a setting.
Some monitors don't display anything when they get a signal/resolution that is not compatible with their displays. I would try changing the display settings on your computer with your old monitor, then switch monitors and see if your newer monitor works.
Here's how to adjust the display resolution: If in XP, right-click on the desktop and go to Properties, and select the tab for display settings and adjust/lower the resolution. If in Vista/Win7 right-click the desktop and select Screen Resolution/Display Settings and adjust it there.
dmellman, Before you open it up, try this! With fully booted pc and WIN DESKTOP screen up, reconnect the L17AMTN . Have a bright flashlight handy so that when the lcd screen flashes on for 1 second and then goes dark, you will want to check to see if the desktop remains on the screen even though you think it went away. Shine the light 1-2 inches from screen at different angles. Has the desk top completely disappeared or is it still being displayed? Do you know about Cold-Cathode-Fluorescent tubes and their Inverter type power supply? I assume that this unit also has a "lay on floor black box switch-mode-power-supply" that is supposed to supply raw 12v-14v dc to the monitor? This symptom is typical of lcd monitor power supply failure, and or inverter board failure. Not to mention the fact that the CCFT's could be a bit tired from use. YOUTUBE has some videos on taking apart lcd monitors. also do search on web for "bad caps on lcd boards" or "bad caps in lcd monitors". I should think that this Tatung might suffer from swollen cap-itis. get back to me with results of your investigation. Im louie12fix on fixya or email@example.com just nrth of Windy City
Thank you for providing your configuration details.
You have failed to specify wheather or not your LCD Display is under Warrenty.
Perhaps these simple trouble shooting procedures will get the job done.
1. use the DVI to VGA adaptor that came with your card
Plug in a regular CRT monitor to the Primary Display Output Port using the DVI to VGA adaptor
( either port can be designated as the primary by you )
I like to use the Port nearest to the motherboard as the Primary
2. plug in the your LCD monitor on Secondary Display port using your DVI cable
At this point you should be able to see your desktop on the Primary CRT Display
3. Go to the display properties and use the Nvidia Dual Display Setup Wizard
set both desktops to CLONED at a resolution of 1024x768 and set the refresh to 60Hz
which is default for most LCD displays , some have higher refresh rates , consult your user manuel
If the display resolution and refresh are set incorrectly for your CRT or LCD you will see
Signal Out of Range ( if the display has the ability to display that error message )
At this stage both displays should be showing a Windows Desktop
If you now see your desktop on both displays , you can now put the LCD on the Primary Port
No Signal Detected ( this means the display device is not receiving a signal )
If your LCD display is still displaying the error message
"No Signal Detected" after performing the trouble shooting proceedures
You may need to read the user manuel about how to enable DVI signal input.
If you are certan you have done everything correctly but still see only "No Signal Detected"
Firstly, the LCD+external setting will switch one or the other or both on.
Secondly, if you go into your display properties (or even the advanced page where your video card additional features are) you can usually select which monitor is "primary".
I suspect that your external display is primary, and the LCD screen is not "enabled" or used as part of the desktop.
The settings are all there, it's just a matter of finding them (depending on what video card is in whatever laptop you have)
This might have happened in the first place if you accidentally hit "Fn" and one of the "F" keys up the top. Fn + F6 on my laptop will switch LCD/external monitors on and off. (for example) There is usually a little blue picture on one of the "F" keys to denote that function.
It appears that the display resolution set in your display properties is out of the range that the LCD can display.
Boot to the ENABLE VGA MODE by pressing F8 to get the Windows Boot Menu. If you can get to the desktop, then go to display properties, and see if you can change the resolution to higher settings and maintain video. (If the video blanks out, then it should revert to the previous setting in 15 seconds)