Home > Important > How to fix Brightness in Ubuntu 11.04

How to fix Brightness in Ubuntu 11.04


To those who have problem with brightness configuration after installing Ubuntu 10.10 and you are using Acer Aspire 4741, here’s a solution for you:
  1. sudo gedit /etc/default/grub
  2. Change the line GRUB_CMDLINE_LINUX=”” into

    GRUB_CMDLINE_LINUX=”acpi_osi=Linux”

  3. sudo update-grub
  4. Restart your linux
It worked for my Acer Extensa 5635Z, I had Ubuntu Desktop and it’s working good.
I hope it works for everyone.
Cheers! And have fun on Ubuntu 🙂
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Categories: Important
  1. May 16, 2015 at 21:51

    This also fixed the problem on an
    Acer Aspire 5732Z Pentium(R) Dual-Core CPU T4300 @ 2.10GHz that’s running on
    Xubuntu 14.04.2 LTS (trusty)

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