Sorry I wasn't clear. The test I made from the saucy DVD was with upgraded BIOS (1.22). It's doesn't work right of the box, I am guessing that the kernel parameters above would make it work. That's how I made it work on my current raring.
Output is: V1.22 03/15/2013 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1181927 Title: [Aspire V5-431]13.04: Brightness control visible but does nothing To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1181927/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
