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Thread: Screen brightness in too low

  1. #1
    Join Date
    Apr 2006
    Beans
    17

    Screen brightness in too low

    I have installed Hardy in my laptop Acer Aspire 5710. Everything goes fine (except two things).

    * Touch pad is a **** now (like earlier versions). Anyway, I dont use it. So doesnt matter for me.

    * Screen contrast is too low. With AC power it seems I am running on my battery.

    I did a try by changing gamma. But monitor is still without bright glossy look.. .

    Any suggestion on how to increase brightness contrast in the monitor ?

  2. #2
    Join Date
    Dec 2005
    Beans
    8

    Re: Screen brightness in too low

    i am having the same issue with an ASUS M50SV-A1 laptop, screen brightness is just too low to begin with, i tried using the nvidia panel after installing the drivers but it just don't work properly as the brightness is so low to begin with that adjusting brightness/contrast/gamma thru it does not work

  3. #3
    Join Date
    Apr 2008
    Beans
    1

    Unhappy Re: Screen brightness in too low

    I have problem too. After update from Ubuntu 7.10 to 8.04 on my notebook Asus U5F, when X start - display brightness very low (minimal level).
    When notebook shutdown or reboot brightness still very low too.
    Tested on gdm and kdm.

    Problem 2.

    Wifi automaticaly turned "ON" when Ubuntu start.
    It always turned "ON".

    Ubuntu 7.10 have not this problems.
    Resolved problems in 8.04: My notebooks Fn-keys work!

  4. #4
    Join Date
    Jan 2006
    Beans
    226
    Distro
    Ubuntu 7.10 Gutsy Gibbon

    Re: Screen brightness in too low

    ok found a solution for u guys using ASUS M50sv laptop.

    The problem seems to be with the lihght sensor, which doesn't work properly.

    First of all, take a torchlight and point it to the sensor (right to the right of the "ALTEC LANSING" writing on the top of your keyboard) and... voila! lights up!

    Ok, here's the fix:

    $sudo su
    #echo 0 > /sys/devices/platform/asus_laptop/ls_switch
    This will put a 0 in the ls_switch file, telling your laptop to NOT use the light sensor, which will give you the control of your brightness back.

    Hope it helps!

    Taken from: http://vip.asus.com/forum/view.aspx?...Language=en-us
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  5. #5
    Join Date
    Oct 2008
    Beans
    4

    Re: Screen brightness in too low

    Extremely usefull! My eyes thank you a lot !

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