Can't control brightness on acer V3 (LINUX) [closed]

Question

Closed. This question does not meet Stack Overflow guidelines. It is not currently accepting answers.

---

We don’t allow questions about general computing hardware and software on Stack Overflow. You can edit the question so it’s on-topic for Stack Overflow.

Closed 8 years ago.

Improve this question

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

Answer 1

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