Thanks czonzalez this worked perfectly: "then you have to add to kernel boot parameters:
acpi_backlight=vendor i915.invert_brightness=1 you can make them permant by editing /etc/default/grub , editing this line: GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor i915.invert_brightness=1" then run: update-grub2 now you have your brightness working as on kernel 2.6-idontremember..." -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/765438 Title: On startup, the backlight is off on laptop To manage notifications about this bug go to: https://bugs.launchpad.net/linux/+bug/765438/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
