@Po-Hsu, Can you try this kernel for bug 1333638 / bug 1250401 / bug 1332437 to see if it fixes the backlight issue ? http://people.canonical.com/~airken/bug/lp1332437/
-- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1332437 Title: [Dell Inspiron 5547/5447] Unable to contorl brightness with fglrx driver on AMD Radeon R7 M260 [1002:6900] To manage notifications about this bug go to: https://bugs.launchpad.net/hwe-next/+bug/1332437/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
