Sorry, luminosity isn't an ubuntu package, and it is known to be very unstable. However, you can feel free to file a support request with your question!
https://launchpad.net/distros/ubuntu/+tickets ** Changed in: Ubuntu Status: Unconfirmed => Rejected -- [edgy]Xorg crashs when using luminosity functions keys of my laptop https://launchpad.net/bugs/66289 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
