![]() ![]() The idea behind this is that perhaps the fnc keys for your keyboard isn't working. If it does not work, then backup and undo all the changes you made to the /etc/default/grub file. Whatever the keyboard backlight buttons are, try them. Reboot.Īfter reboot, try the function keys for your keyboard. Go to the line that says, 'GRUB_CMDLINE_LINUX=quiet splash' and change that line to read 'GRUB_CMDLINE_LINUX= quiet splash acpi_backlight=vendor' then save the file. Sudo gedit /etc/default/grub, then type the password for the administrator. Since the user has supplied the output of the above commands, I'll update this instead of writing a new reply. Grep "GRUB_CMDLINE_LINUX" /etc/default/grubĪlso, what kernel version are you using? Update: I am only writing this as a reply because I don't have enough rep points to add a simple comment.Ĭould you post the output of the following command when typed into the terminal? ![]()
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