Friday, 30 March 2012

Ubuntu backlight[fix]

Im sorry suppose this time entry i need to upload the driver but since the internet connection was quite slow right now, i guess i will do another tutorial.

today i will teach you on how encounter the backlight problem on certain laptop...now let start.

first you need to add this ppa on your software list..
-"sudo add-apt-repository ppa:kamalmostafa/linux-kamal-mjgbacklight"

once you done,,please do run sudo apt-get update && sudo apt-get upgrade.
okay now you finish that two job..lets proceed to the other step.
1.we will edit GRUB2 boot parameter..you can find it on /etc/default/grub.we will do little programming by enabling "acpi_vendor=backlight"

              1..open terminal and type sudo nano  /etc/default/grub.
                      --you can use other editor such gedit or else..
              2..now you will see this line..just change the value..refer this value that i show you.
                         GRUB_CMDLINE_LINUX_DEFAULT="splash acpi_vendor=backlight"
                          GRUB_CMDLINE_LINUX="acpi_vendor=backlight"
okay..press ctrl-x and y to save....

after editing the GRUB2,you need to update the grub.cgf...
sudo update-grub

done!your light suppose to be working sharpish after reboot.
This picture show how if you edit using nano

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