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Thread: Backlight doesn't working on Samsung laptop

  1. #11
    Join Date
    Oct 2012
    Beans
    12

    Re: Backlight doesn't working on Samsung laptop

    maxym@maxym-300E5Z:~$ for i in /sys/class/backlight/*; do echo $i; cat $i/brightness; cat $i/max_brightness; done
    Code:
    /sys/class/backlight/intel_backlight
    3718
    4648
    /sys/class/backlight/samsung
    2
    8
    maxym@maxym-300E5Z:~$ lsmod | grep samsung
    Code:
    samsung_laptop         14532  0 
    video                  19390  2 i915,samsung_laptop
    maxym@maxym-300E5Z:~$ dmesg | grep samsung
    Code:
    [   30.494988] samsung_laptop: enabled workaround for brightness stepping quirk
    [   30.500566] samsung_laptop: detected SABI interface: SwSmi@

  2. #12
    Join Date
    Jun 2005
    Location
    Toronto, Canada
    Beans
    Hidden!
    Distro
    Xubuntu 14.04 Trusty Tahr

    Re: Backlight doesn't working on Samsung laptop

    Hmm. blacklisting samsung_laptop didn't work.

    Can you rename /etc/modprobe.d/blacklist to /etc/modprobe.d/blacklist.conf, run:
    Code:
    sudo update-initramfs -u
    ...reboot and test again?

  3. #13
    Join Date
    Oct 2012
    Beans
    12

    Re: Backlight doesn't working on Samsung laptop

    For now it works! Cool! Thank you!! I will save this thread to my bookmarks!

  4. #14
    Join Date
    Jun 2005
    Location
    Toronto, Canada
    Beans
    Hidden!
    Distro
    Xubuntu 14.04 Trusty Tahr

    Re: Backlight doesn't working on Samsung laptop

    Great to hear. Can you mark this thread as solved using the instructions in the "How To Mark A Thread [SOLVED]" link in my signature? Thanks.

  5. #15
    Join Date
    Oct 2012
    Beans
    12

    Re: Backlight doesn't working on Samsung laptop

    Yeah, sure! Already done this)

  6. #16
    Join Date
    Aug 2011
    Location
    SW England
    Beans
    6
    Distro
    Ubuntu 11.04 Natty Narwhal

    Re: Backlight doesn't working on Samsung laptop

    Hi
    I think this may be the solution to my problem- but I don't entirely understand the instructions.
    I posted my own thread:

    http://ubuntuforums.org/showthread.php?t=2163522

    Thanks.

  7. #17
    Join Date
    Oct 2012
    Beans
    12

    Re: Backlight doesn't working on Samsung laptop

    If it Samsung device - I think, it must work similar to my laptop. Try to do all steps as I did.
    Last edited by yakudzam; July 18th, 2013 at 09:47 PM.

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