change screen brightness keys (fn) does not work on Dell XPS L702X laptop in Ubuntu 12.10 also screen brightness can not be changed or modified using any other settings

[Justin Crossley]

Screen brightness can not be changed at all in Ubuntu 12.10 as well as previous versions (Ubuntu 12.04 as well). This bug still has not been fixed for a long time. The brightness control buttons on the laptop (fn) also does not work.
This is on a Dell XPS L702X laptop.

[Ubuntu Foundations Team Bug Bot (crichton)]

Thank you for taking the time to report this bug and helping to make Ubuntu better. It seems that your bug report is not filed about a specific source package though, rather it is just filed against Ubuntu in general. It is important that bug reports be filed about source packages so that people interested in the package can find the bugs about it. You can find some hints about determining what package your bug might be about at https://wiki.ubuntu.com/Bugs/FindRightPackage. You might also ask for help in the #ubuntu-bugs irc channel on Freenode.

To change the source package that this bug is filed about visit https://bugs.launchpad.net/ubuntu/+bug/1181693/+editstatus and add the package name in the text box next to the word Package.

[This is an automated message. I apologize if it reached you inappropriately; please just reply to this message indicating so.]

[penalvch (penalvch)]

Justin Crossley, thank you for taking the time to report this bug and helping to make Ubuntu better. Please execute the following command, as it will automatically gather debugging information, in a terminal:
apport-collect 1181693

[Launchpad Janitor (janitor)]

[Expired for linux (Ubuntu) because there has been no activity for 60 days.]