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Thread: Asus eee pc X101ch

  1. #1
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    Mar 2013
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    Asus eee pc X101ch

    Hi people ,

    Am vry new to Ubuntu and recently bought a asus x101ch realised how slow the windows on there was and thought there must be a better way.
    Enter UBUNTU
    All installed fine on 12.04 lts loving it except one thing

    The display brightness setting is very low and i cant get it to be brighter i have looked for a fix and search but struggling to get the fix on to the netbook

    can anyone please help me my eyes are starting to sting.

  2. #2
    Join Date
    May 2010
    Location
    uk
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    8,051
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    Xubuntu 14.04 Trusty Tahr

    Re: Asus eee pc X101ch

    Hi

    Looks like this may be a bug.

    https://bugs.launchpad.net/ubuntu/+s...x/+bug/1132261

    From the terminal, please post the output of

    Code:
    ls /sys/class/backlight
    and

    Code:
    cat /sys/class/backlight/*/max_brightness /sys/class/backlight/*/brightness
    Copy and paste the output from the terminal by selecting the text, right click -> Copy and paste into the post.

    EDIT:

    And welcome to the forums

    Kind regards
    Last edited by matt_symes; March 24th, 2013 at 09:56 PM.
    If you believe everything you read, you better not read. ~ Japanese Proverb

    If you don't read the newspaper, you're uninformed. If you read the newspaper, you're mis-informed. - Mark Twain

  3. #3
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    Mar 2013
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    Re: Asus eee pc X101ch

    Hi the output brougt back for the first Terminal

    acpi_video0 psb-bl

    and the secound one was

    10
    100
    10
    0

    Hope this is all ok am still pretty new to this so thanks for helping

    and thanks for the welcome and fast reply
    Last edited by Donkey666; March 24th, 2013 at 10:02 PM.

  4. #4
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    Re: Asus eee pc X101ch

    I have the same issue on my acer aspire one for now after i boot up i paste the following in the terminal: sudo setpci -s 00:02.0 f4.b=ff

    Fastest way to the terminal is: Crtl Alt T

  5. #5
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    Re: Asus eee pc X101ch

    Wow just tried that and WOW it wokred man is there a perminant fix to this or can we get this to stick ?


    ok just want to post this now after a reboot to check the above fix WORKS 100% will still test though
    Last edited by Donkey666; March 24th, 2013 at 11:10 PM.

  6. #6
    Join Date
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    Location
    uk
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    8,051
    Distro
    Xubuntu 14.04 Trusty Tahr

    Re: Asus eee pc X101ch

    Hi

    Quote Originally Posted by Donkey666 View Post
    Wow just tried that and WOW it wokred man is there a perminant fix to this or can we get this to stick ?


    ok just want to post this now after a reboot to check the above fix WORKS 100% will still test though
    Wow ! You're lucky that worked

    I have no device at that location:

    Code:
    matthew-S206:/home/matthew/test % lspci -s 00:02.0
    matthew-S206:/home/matthew/test %
    Code:
    matthew-S206:/home/matthew/test % sudo setpci -s 00:02.0 f4.b=55
    setpci: Warning: No devices selected for "f4.b=55".
    matthew-S206:/home/matthew/test %
    For a more general solution you want to be piping a value into the brightness file in sysfs.

    Something along the lines of...

    Code:
    echo 100 | sudo tee /sys/class/backlight/psb-bl/brightness
    The value above is either 100 or 10.

    Is it sticking after a reboot ?

    Kind regards
    Last edited by matt_symes; March 24th, 2013 at 11:30 PM.
    If you believe everything you read, you better not read. ~ Japanese Proverb

    If you don't read the newspaper, you're uninformed. If you read the newspaper, you're mis-informed. - Mark Twain

  7. #7
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    Mar 2013
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    4

    Re: Asus eee pc X101ch

    If you want the fix I posted above to stick after a reboot you need to make the scrip run on start up which is listed below.
    This does not fix the problem though, you still cant adjust the brightness atleast you can see your screen :/


    Open a terminal window and type
    cd /etc
    sudo nano rc.local
    above where it says Exit 0 paste: sudo setpci -s 00:02.0 f4.b=ff
    crtl x, and select y to save it.

  8. #8
    Join Date
    Mar 2013
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    16

    Re: Asus eee pc X101ch

    i have been working on getting ait all up and tunning but have rebooted 4 times so far and it seems to have stuck


    Maybe this is the fix for this \netbook am not sure or maybe am just lucky but thanks for all the help

    will keep looking through the forums as will need to find good things to install on the Netbook to give me good proformance and for when i start programing or least learning

    Thanks again

  9. #9
    Join Date
    Mar 2013
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    Re: Asus eee pc X101ch

    well least i can see the screen it has stuck been able to adjust brightness will have to keep investigating

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