Q: Brightness F1 and F2 not working, others (Volume, etc.) do work
All of a sudden my F1 and F2 buttons on my bluetooth keyboard (Late 2015 desktop) are not working. F3, F4, F9, F10, F11 are all working fine for other controls.
Any idea what may be going on?
iMac (21.5-inch, Late 2015), OS X El Capitan (10.11.4)