I now also got the Fn+Arrow-buttons working by adding the kernel option "acpi_backlight=vendor" if found while googling around.
Make change permament by editing row in /etc/default/grub GRUB_CMDLINE_LINUX_DEFAULT="quiet splash acpi_backlight=vendor" and then run "sudo update-grub" -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/910536 Title: Screen too dark, no backlight, unusable X To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/910536/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
