Also, your kernel is booted with modesetting disabled. Please remove the 'nomodeset' kernel parameter and then run:
sudo update-initramfs and reboot. Does brightness now work? If not then please re-run: ls -l /sys/class/backlight/ and tell us what it says. ** Package changed: xorg (Ubuntu) => linux (Ubuntu) -- You received this bug notification because you are a member of Ubuntu-X, which is subscribed to xorg in Ubuntu. https://bugs.launchpad.net/bugs/1834836 Title: Brightness controls don't work on Dell Inspiron 5567 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1834836/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : [email protected] Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp

