I built the mainline kernel with commit a50188d reverted. Can you test this kernel and see if it resolves this bug? It can be downloaded from:
http://kernel.ubuntu.com/~jsalisbury/lp1354710 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1354710 Title: Backlight control does not work, but there are entries in /sys/class/backlight. Lenovo B570 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1354710/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
