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linuxbrightness

Can't control brightness on acer V3 (LINUX)

I have one problem with linux mint and my conputer ACER v3, I can't control brightness, why?

Solution

  • It is mostly caused by GRUB bootloader. Running following commands might help.

    sudo sed "s/\(GRUB_CMDLINE_LINUX=\)\"\"/\1\"acpi_osi=Linux acpi_backlight=vendor\"/" /etc/default/grub -i 

sudo update-grub

sudo reboot