Another workaround: Add "acpi_osi=Linux" in your boot options. For example, modify /etc/default/grub like this: GRUB_CMDLINE_LINUX_DEFAULT=“quiet splash acpi_osi=Linux” then run update-grub and reboot.
After boot you will be enable to change backlight power with notebook hardware keys. -- 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 -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
