Possible Duplicate:
How can I fix a 404 Error using a PPA?
I'd like to install samsung-backlight from Voria Tools as suggested here, but after adding the PPA I can read some 404 errors for http://ppa.launchpad.net/voria/ppa/ubuntu/dists/quantal/main/source/Sources when doing sudo apt-get update.
Does this mean that there is no samsung-backlight for Ubuntu 12.10? How can I install it?
