rajiv New User

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  • Edit GRUB: sudo nano /etc/default/grub change GRUB_CMDLINE_LINUX_DEFAULT to GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_osi=Linux acpi_backlight=vendor" then: sudo update-grub Reboot. Controls are working. Follow following link "http://askubuntu.com/questions/180819/how-to-control-brightness-on-acer-laptop"
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