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    Dell XPS 1640 System BIOS A10 Released

    Discussion in 'Dell XPS and Studio XPS' started by iaTa, Sep 25, 2009.

  1. guitardude7

    guitardude7 Notebook Guru

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    I've always been able to use the fn and up arrows keys to bring the brightness back up, but my main problem is that I have to do that every single time I start up the computer. Did resetting to defaults fix the screen brightness at startup?
     
    guitardude7, Oct 13, 2009
    #51
  2. Alexander North

    Alexander North Newbie

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    Yes, it fixed the problem I had with the screen brightness at start up.

    Just to make sure we both had the same problem. When you powered on your system, was your screen bright? Because mine was and after logging into my windows account the screen dimmed down, despite being on the maximum screen brightness.

    After I reset the settings, the screen's brightness improved drastically. Meaning it return to the brightness quality I had prior to the problem. But anyhow, give it a try and let me know if it fixes your problem.

    "Alexander North"

    ~May Fortune Smile On You~
     
    Alexander North, Oct 13, 2009
    #52
  3. guitardude7

    guitardude7 Notebook Guru

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    Thanks for the suggestion, but that didn't fix it. It's weird, because if I uninstall the ATI drivers the problem immediately goes away.
     
    guitardude7, Oct 13, 2009
    #53
  4. iaTa

    iaTa Do Not Feed

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    Give Windows 7 a try.
     
    iaTa, Oct 13, 2009
    #54
  5. iaTa

    iaTa Do Not Feed

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    Try the new A11 BIOS as it looks like they may have fixed your problem:

    Dell XPS 1640 System BIOS A11

    • Improve boot up time
    • Enhance brightness function
     
    iaTa, Oct 14, 2009
    #55
  6. kilves76

    kilves76 Notebook Enthusiast

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    Also, does anyone know if the F12 boot menu can be expanded for +prefix items to select the exact boot device from a category? Have tried enter, space, all kinds of combinations, no go.
     
    kilves76, Oct 18, 2009
    #56
  7. lancorp

    lancorp Notebook Virtuoso

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    The ATI driver stores any settings you make in the CCC (Catalyst Control Panel) and applies them when you start up. Also, and Color Management settings are applied soon after Windows starts. So, if you are seeing a change in brightness right after you log in, it's generally because of one or both of those applying their settings. The fact that uninstalling the ATI driver "fixes" the problem substantiates what I am saying...
     
    lancorp, Oct 18, 2009
    #57
  8. TerryO'QuinnMedicine

    TerryO'QuinnMedicine Notebook Guru

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    The 1645 does not have these problems at all.
     
    TerryO'QuinnMedicine, Oct 19, 2009
    #58
  9. lancorp

    lancorp Notebook Virtuoso

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    Which problems are you referring to?
     
    lancorp, Oct 19, 2009
    #59
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