indeed, this solution worked for me, too. Just to add: on my N581, the value for full brightness is 100. So, my file looks now like this:
The file /etc/rc.local : echo 100 > /sys/class/backlight/acpi_video0/brightness exit 0 Maybe this can make life easier for some others, too. Thank you @Erwan DUEDAL for posting this solution! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1168188 Title: broken acpi backlight on lenovo g580 and ubuntu 13.04 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-intel/+bug/1168188/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs