I have some problems in controlling my laptop’s brightness on Linux Mint 13. My laptop’s specification is found on this page. Just a summary I am using NVIDIA GeForce GT 540M 2GB Dedicated VRAM. Here are the steps I followed to get control on my laptop’s brightness. Open the terminal Edit grub (sudo nano /etc/default/grub), Around the 11th line, there will be something like: GRUB_CMDLINE_LINUX_DEFAULT=”quiet splash”. Change it to GRUB_CMDLINE_LINUX_DEFAULT=”quiet splash acpi_backlight=vendor” Save the file Update your grub (sudo update-grub2)
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