Question about Dell Inspiron 6400 Notebook

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My Dell Inspiron 6400 is extremely dark. +brightness does nothing

My laptop's screen is very dark. I have to shine a bright line onto it or be in a very bright room to be able to read anything. I've tried the + gamma button but it does nothing? My Dad said something about maybe an Inverter needs replacing? THanks

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  • liba60 Feb 19, 2009

    Is there anyway I can figure out if its either inverter or inverter coil?

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Hi,

I am newbie to Linux world. I have recently installed Kubuntu on my Dell Inspiron 6400.
I also installed Beryl and had no problems with the installation.

Only thing which I am not able to do is the brightness control using special Function Keys.

Generally Fn + Up arrow or down arrow is used to increase/decrease brightness level. I am unable to do so in kubuntu.

Please help and advise....

Posted on Feb 04, 2010

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Hi there.
Yes, if you can see a very faint image on the screen that indicates that the inverter or inverter coil has become defective and needs looking at or replacing.

Good luck and thanks for using Fixya!!

Posted on Feb 19, 2009

  • Lee Hodgson
    Lee Hodgson Feb 19, 2009

    Hi there.
    They are both on the inverter circuit board underneath the laptop screen itself, only a qualified PC service engineer will be able to determine which of them it is.
    For the time being however, you can use an external monitor until you have the problem fixed.


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ldriscoll3:
The brightness of the screen does not generally depend on the health of the battery.

On the keyboard of your laptop is a "Fn" key. You need to press and hold the key down while you also press the "Up Arrow" key repeatedly. Each time you press the "Up Arrow" key while holding the "Fn" key down, the display will get progressively brighter until you reach maximum brightness. If you go too far and it gets too bright (not likely), just press the "Down Arrow" key while holding the "FN" key down until it's the perfect brightness

This is explained on page 33 of the user manual that you can download from here:
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