Public bug reported: When I press the 'Brightness Control(UP, DOWN)' key in Apple Keyboard, the OSD shows Increasing Backlight(or Decrease) at the right-top corner. But the Screen Brightness doesn't changed.
Also, I waited 15 minutes, the screen turned black. (Power Setting) But the Backlight still alive. This iMac has AMD Radeon HD 6970M. I think maybe it's because the driver doesn't exist in kernel module. Sorry about my poor English and few information. ** Affects: ubuntu Importance: Undecided Status: New ** Tags: backlight brightness imac -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/818826 Title: backlight brightness control won't work in 2011 iMac 27" To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+bug/818826/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs