Found that bug which is close to ours: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/280518. I don't know if it's a real duplicate, I'll let someone who knows what he's doing mark it.
-- Cannot change brightness with 2.6.27-11+ kernel https://bugs.launchpad.net/bugs/333386 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
