The brightness control bar is not in the system settings of Ubuntu 14.04. How to get it there? - Ask Ubuntu


the brightness control bar not in system settings of ubuntu 14.04. how there?

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currently have lowered brightness of desktop due this wonderful solution, still want know how in window shown int screenshot!

first, open terminal pressing ctrl+alt+t , execute following command:

gksudo gedit /etc/default/grub

navigate 11th line, there grub_cmdline_linux_default="quiet splash" line. add acpi_backlight=vendor next quite splash line be:

grub_cmdline_linux_default="quiet splash acpi_backlight=vendor"

save file, run update-grub command apply change have made:

sudo update-grub

finally, restart system


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