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E4300 Win7 64bit - backlight control

Discussion in 'Dell Latitude, Vostro, and Precision' started by naniccz, Sep 30, 2009.

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  1. naniccz

    naniccz Newbie

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    Hi,
    I've got brand new Latitude E4300 and I decided to install Win7 64bit in order not to upgrade after I install all my software onto Vista. But I cannot get the LCD backlight control get to work.
    In BIOS the settings work well, but in Win7 it does not. e.g. when I set in the BIOS half backlight, it works until I try to change it in Windows - it suddenly jumps to full backlight (I suppose), but the Dell Controll Point dialog shows some 1/3 or similar. Then I'm able to change it +1 step, but it doesnt make any difference, even turning on and off the ambient light sensor doesnt make difference.

    I tred to install several drivers from dell.com, but the support for Win7 64bit isnt very good. So I took some drivers from Vista 64b, and Vista 32b, but it made no difference.

    Does anybody know solution, or does anybody have the same problem? Or do I have to wait until dell releases drivers?
    Thank you
     
    naniccz, Sep 30, 2009
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  2. Matt is Pro

    Matt is Pro I'm a PC, so?

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    What BIOS are you running? A09 supposedly "Enhances Win7 Support."

    And also be sure to download and install the latest DCP Software from the Win7 section on the support site.
     
    Matt is Pro, Sep 30, 2009
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  3. naniccz

    naniccz Newbie

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    The BIOS is A09 and DCP is 1.3.0 (and every component - or whatever - of DCP has the 1.3.0 version). I am confused, because I think that some Win7 users got the backlight control working, as I relized it in some threads. And they wrote that they even didn't use DCP...
     
    naniccz, Sep 30, 2009
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  4. atrix415

    atrix415 Notebook Enthusiast

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    Your talking about the ambient backlight right? If you are delete the "ambient driver" and used the stand alone fn+arrows to control the back light that is what I did. Post back.
     
    atrix415, Oct 1, 2009
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  5. naniccz

    naniccz Newbie

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    Great, it works!!! The weird thing is that I must set the mode to "Ambient backlight ON" to cahnge it manually (if it is off, it doesn't change).

    The issue is that when the ambient driver is away, the keyboard won't backlit itself depending on the light (and same the display), bud it is worth it :)

    Thank you very much...
     
    naniccz, Oct 1, 2009
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  6. atrix415

    atrix415 Notebook Enthusiast

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    yep, there is no ambient driver for win7 yet. But this will let you adjust the lighting for now is all we can do. Rep me, I want higher power. lol
     
    atrix415, Oct 1, 2009
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  7. naniccz

    naniccz Newbie

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    Have I missed something, or there isn't still any driver from dell? It's 3 months since Win7 was released!
     
    naniccz, Jan 8, 2010
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  8. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    The ALS driver is built into the DCP system manager package.

    It is working on my E6400 (essentially the same hardware) with Win 7-64. However, I still prefer to control the screen brightness manually.

    John
     
    John Ratsey, Jan 8, 2010
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