Question about Compaq Presario Notebook

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Compaq laptop screen not working

We have a compaq laptop that we are using a LCD projector with for a power point presentation. I get the video to the LCD but the screen on the laptop does not work now..

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  • debmukherjee Jul 04, 2008

    I hv a compaq presario 2100 . While it was connected to the power supply, it was working fine. Accidentally, the horizontal longish button was pressed, and the screen went blank. No light is on despite the adapter showing green light.

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You need to use a function key on your laptop. I beleive it should be Fn + F4. It will switch you betwen LCD only to VGA only to LCD and VGA mode.

Good luck.

Posted on Jun 04, 2008

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You will have to enable dual monitors in your laptop's video display settings.

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Posted on Jun 04, 2008

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Compaq 621 laptop not working with projector


Connecting an External Monitor or Data Projector
You can switch to an external monitor or data projector by two methods. 1. Connect the external monitor to the laptop's video port, power up the external monitor first and the laptop. The video information will automatically switch to the external monitor. 2. If you power up the laptop first then you can switch the video output to the external monitor by pressing the Fn key and one of the Function keys, depending upon your make and model laptop. You can also toggle between the external monitor or both LCD screen plus the external monitor or back to LCD screen only by pressing the Fn key plus one of the function key. Here is a list of key combinations for some of the laptops :- IBM ThinkPad = Fn + F7 HP and Compaq = Fn + F4 Toshiba = Fn + F5 Dell = Fn + F8

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I figured that last problem out now if someone knows how to recover a compaq laptop with windows xp, when monitor is damaged and using an external monitor?


You can switch to an external monitor or data projector by two methods. 1. Connect the external monitor to the laptop's video port, power up the external monitor first and the laptop. The video information will automatically switch to the external monitor. 2. If you power up the laptop first then you can switch the video output to the external monitor by pressing the Fn key and one of the Function keys, depending upon your make and model laptop. You can also toggle between the external monitor or both LCD screen plus the external monitor or back to LCD screen only by pressing the Fn key plus one of the function key. Here is a list of key combinations for some of the laptops :- IBM ThinkPad = Fn + F7 HP and Compaq = Fn + F4 Toshiba = Fn + F5 Dell = Fn + F8

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How do i get monitor output


You can switch to anexternal monitor by two methods.1. Connect the externalmonitor to the laptop's video port, power up the external monitor first and thelaptop. The video information will automatically switch to the externalmonitor.2. If you power up thelaptop first then you can switch the video output to the external monitor bypressing the Fn key and one of the Function keys, depending upon your make andmodel laptop. You can also toggle between the external monitor or both LCDscreen plus the external monitor or back to LCD screen only by pressing the Fnkey plus one of the function key. Here is a lkeycombinations for the laptops :-HP and Compaq = Fn + F4

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When I want to do a presentation, my computer could not project the image on the LCD projector. My laptop is Compaq 510.


You need to press the Function key (fn) and the corresponding "F key" with the projector hooked up and powered on. Such as F7
The F key should either have a picture of a monitor or the words LCD on it in the same color as the fn key. Usually it is blue.

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2 Answers

My hp compaq model 510 is not working with projector.projector is not working on this laptop plz provide a proper solution.


You are not providing enough information to help you.
Have you set the display to use an external monitor or dual monitor? That is how laptops work with projectors. You normally can set the system for dual display and either mirror the displays or use the second display (projector) for power point or other presentation.

If this does not fix the problem, post more information on why it is not working for you.

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How do I connect the laptop to the projector using Power Point.


Connect the data projector to the video port on the laptop. Then power up the data projector and then the laptop, the video data will automatically be diverted to the data projector.
If you want to see the Windows image on your laptop screen as well you need to press and hold down the FN key plus one of the function keys on you laptop which has a screen symbol. Pressing this key will toggle between the laptop screen, data projector or both laptop screen plus data projector.
You can open Power Point and select your presentation as you would normally.

Nov 14, 2010 | PC Laptops

1 Answer

I can't get the display from my laptop to project to a screen.


If you connect the data projector to your laptop and power it up first then your laptop, the video will switch to the data projector automatically.
If you had powered up the laptop first then you can divert the video information to the external video port/data projector by holding the Fn key and then press F4 key.
You can toggle between the LCD screen, the data projector or both LCD and data project together using the Fn & F4 keys.

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I con't connect with lcd projector, xp windows


The video output will automatically switch to the data projector first when you power up the data projector first and then boot up the laptop.
When you power up the laptop first you can toggle the Windows image between the LCD screen and the video port/data projector by pressing the Fn key plus the F4 key. Pressing these keys each time will switch the display from LCD screen to video port only, to both LCD screen and video port, and back to LCD screen only.

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