Question about HP Compaq Evo n610c Notebook

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Problem with video card, only show compaq screen

Hi... I have a problem with te videocard because when i turn on the laptop only shows compaq's logo and then the screen is blank, but when i connect other screen on the vga port show in the external screen but laptop's screen don respond... any solution????

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Re: Problem with video card, only show compaq screen

First connect llaptop to another monitor and open this pics!Display Settings have to be like in this pics and i hope it will help u...

Posted on Oct 11, 2007

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Re: Problem with video card, only show compaq screen

Both of these soloutions could not be more WRONG!!! Thanks guys for leading me on a wild goose chase... Here is the soloution!

This problem occurs because of an issue with the Videoprt.sys miniport driver and with the video graphics adapter (VGA) basic input/output system (BIOS) implementation in Windows XP SP1. When you open the lid of the portable computer in this scenario, the expected power request to turn on the LCD backlight does not occur.

Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section. This problem was first corrected in Microsoft Windows XP Service Pack 2.o resolve this problem, obtain the latest service pack for Microsoft Windows XP.


After you configure the energy-saving settings for an LCD monitor, the monitor on your Microsoft Windows XP Service Pack 1 (SP1)-based portable computer may not turn on again after you reopen the lid. For example, this problem may occur after you configure energy-saving settings by following these steps: 1. Click Start, and then click Control Panel. 2. In the Pick a Category window, click Performance and Maintenance, and then click Power Options. 3. In the Power Options Properties dialog box, click the Power Schemes tab, and then click After 1 min in the Turn off monitor list. 4. Click the Advanced tab, and then in the When I close the lid of my portable computer list, click Do nothing. 5. Click Apply, and then click OK. 6. Wait for one minute for the monitor to turn off. Close the lid of the portable computer, disconnect the computer from the power source, and then reopen the lid. The monitor may not automatically turn on as expected. Note These steps apply when you have Control Panel set to Category View.

This problem is not resolved even after you press a key on the keyboard. In this scenario, you must restart your computer to regain use of the monitor.

To work around this problem, add the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers\LidCloseSetPower To do this, follow these steps. Warning If you use Registry Editor incorrectly, you may cause serious problems that may require you to reinstall your operating system. Microsoft cannot guarantee that you can solve problems that result from using Registry Editor incorrectly. Use Registry Editor at your own risk. 1. Click Start, click Run, type regedit in the Open box, and then click OK. 2. Locate and then click the following registry subkey: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\GraphicsDrivers 3. On the Edit menu, point to New, and then click Key. 4. Type LidCloseSetPower as the key name, and then press ENTER. 5. Quit Registry Editor.

Posted on Nov 09, 2007

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Re: Problem with video card, only show compaq screen

Laptops will have ability to expand to external monitor. When you do this there are usually 3 options. 1. display video just on laptop display 2. display video on laptop and external monitor or 3. display video only on external monitor. My guess is you have the 3rd option selected. Different manufactures and models change these in different ways. But it's usually function and one of the number keys. on one of the number keys there should be a picture of a monitor. hit function and this number key a few times.     

Posted on Oct 11, 2007

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Hi there,
do you still see the compaq logo and does it show you the windows boot up screen before it goes blank?
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Thanks for all the details..

The issue seems to be with the video card drivers here...

Go to and download the latest video card and the chipset drivers

before you download ...uninstall the nvidia chipset or any display software from program and features.

after you have installed the software.. go to the nvidia control panel > setup multiple monitors. and browse throughout the options >
It should be dual display and not extended display.

Also try with a new user profile...

Hope this helps..

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To isolate the issue further connect the notebook to an external monitor and check the display on it. If the display is perfect on external monitor then the issue is with the LCD screen of the notebook.

If you have got the same lineds on the external monitor then the issue is with the video card of the notebook.

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