Home / ubuntu / Questions / 353444
Accepted
Frank Barcenas
Asked: 2013-10-04 19:02:51 +0800 CST

at 10 percent brightness my screen is at 100%

  • 772

I have Kubuntu 13.04 installed on an HP envy DV7 with the dual graphics chipsets intel 4000 and Nvidia 630M. And when I try to reduce my screen brightness it doesn´t actually go down until it reaches 10%. I´m running the standard nouveau drivers, no proprietary drivers.

nvidia

1 Answers

  1. Best Answer

    Try it once.. It has solved all problems about brightness! Including mine!!

    • Open terminal ( Ctrl+Alt+T ) and type:

      sudo cp /etc/default/grub /etc/default/grub.bak
sudo gedit /etc/default/grub

      You will find this line in the new opened window: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash"

    • Change it to:

      GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor"

    • Save and close the window and type this in the terminal:

      sudo update-grub

    • Restart your system..

    • 2