I recently connected a Kinesis Freestyle2 Keyboard for Mac to OSX 10.11. All of the media keys work, except for brightness down and brightness up. How can I fix this?
Karabiner to the rescue!
While looking through its EventViewer, I noticed that when I pressed the brightness keys, they were being registered as F14 and F15, respectively.
So I added these lines to my private.xml file:
<item> <name>Kinesis Freestyle2</name> <appendix>Fix brightness keys</appendix> <identifier>kinesis-freestyle2</identifier> <autogen>__KeyToKey__ KeyCode::F14, KeyCode::BRIGHTNESS_DOWN</autogen> <autogen>__KeyToKey__ KeyCode::F15, KeyCode::BRIGHTNESS_UP</autogen> </item>