I'm also affected by this on Ubuntu 12.10, a workaround is to set the desired default backlight brightness by adding
# brightness fix after boot echo 0 > /sys/class/backlight/acpi_video0/brightness before exit 0 in /etc/rc.local. 0 is the minimum, usually, 0-15 can be used. -- 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/1069186 Title: problem with backlight To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/xorg/+bug/1069186/+subscriptions _______________________________________________ Mailing list: https://launchpad.net/~ubuntu-x-swat Post to : ubuntu-x-swat@lists.launchpad.net Unsubscribe : https://launchpad.net/~ubuntu-x-swat More help : https://help.launchpad.net/ListHelp