Problem with lcd-display on Acer Aspire 7520

January 28, 2010 at 12:29:08
Specs: Vista/Windows 7
The screen on my laptop, Acer Aspire 7520, has gone black. When I connect an external monitor I can see the picture on the monitor. When I install the driver for the VGA-board on the laptop my LCD is OK again. This has happened several times and everything works after installation of VGA-driver.

Please help me with some suggestions.


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#1
January 28, 2010 at 12:39:12
So, does this happen right after you connect an external monitor?

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#2
January 28, 2010 at 13:25:44
The problem with the LCD-display occur after some time of usages (from 1 hour to a couple of days). When I got the problem I connect an external monitor to be able to see what happens on the computer. Everyting works fine on the monitor while the LCD is black. Then I install the VGA-driver again and the problem dissapears. This has happened several times, both with Vista and Windows 7.

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#3
January 28, 2010 at 13:37:19
When you do connect an external monitor is the resolution OK?

Do you reboot when connecting the external monitor?


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Related Solutions

#4
January 28, 2010 at 13:42:46
As far as I can see the resolution on the external monitor is ok when i boot with the monitor connected. When I connect the monitor after reboot I think that the resolution is not ok. The picture showed up with 16:9-format. The laptop has a 17.3 inch display.
When I look in the devicemanager after the lcd has gone black and the monitor is connected I can only see the monitor. After installing the driver again both the monitor and the vga-display appears in the devicemanager.

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#5
January 28, 2010 at 14:13:11
The graphics driver affects both the laptop screen and the external monitor. So I don't understand why you need to re-install the graphics drivers.

Are you sure the laptop isn't just going into a power saving mode when your screen goes off. That seems to be the most likely cause.

Next time this happens reboot without connecting an external monitor and see what happens.


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#6
January 28, 2010 at 21:46:18
I have tried to reboot several times without the external monitor connected and the lcd is still black. In a way it seems like a hardware-problem but the fact that it's ok after a driverinstallation tell me sometihing else. As a said I can't see the vga-display in the devicemanager when i have the problem. After driver installation I see it in devicemanager again.

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#7
January 29, 2010 at 05:23:32
Try this then. When the screen is working right go to driver details and write down all the data. Then after the laptop screen won't work again check the details again while using the external monitor and compare to see if the drivers are changing at all.

I am suspecting this is a hardware issue.
A likely candidate would be the cable that feeds the video signal to the laptop screen. Movement can allow the signal to pass again.

The screen is completely black when this happens? Not gray?


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#8
January 29, 2010 at 08:43:54
Thank you for your suggestions. I will try this as soon as possible. The screen is complitely black when it's not OK.

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#9
January 29, 2010 at 08:55:20
Then that means there is no signal to the screen at that time.

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#10
September 15, 2010 at 17:44:24
Hello - I am havtng a similar issue on an ACER 7520-5374. An external monitor works, and I just plug it in after I've got the laptop running. The LCD screen is blank, but not black. It's a gray-blue colour. Looks luminescent as if there's a light behind it.

Does this make a difference to what's behind it?


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#11
September 16, 2010 at 06:13:48
Trizi

You need to start your own thread here. This one is old and no one is tracking it. Post the model of your laptop as well as a description of what the current condition is and what led up to it. Post in the hardware forum (this one) here at CN.

Simply click on Start a discussion to start a new thread.


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