Backlit Keyboard Not Working in PB4?

Goftrey

macrumors 68000
Original poster
May 20, 2011
1,844
70
Wales, UK
I've just updated my fully working 13" MBP (Mid-2009) from PB3 to PB4, and it's completely knackered the backlit keyboard. It's not showing up in System Prefs under Keyboard at all. Display brightness and the actual F5/F6 function keys still work though.

SMU and PRAM reset hasn't fixed it.

Anybody else with this issue?
 

ABC5S

Suspended
Sep 10, 2013
3,395
1,597
Florida
Does not show in my system Pref either, but I use the keyboard brightness keys to adjust it, and that still works
 

got556

macrumors 6502
Jul 7, 2013
485
156
Indiana
Not working in mine either w/ both PB4 and PB5. Mid 2009 MBP here also. Worked fine in Mavericks.
[RESOLVED]

Had to uncheck adjust keyboard brightness in low light and now it works fine.
 
Last edited:

NathanA

macrumors 6502a
Feb 9, 2008
739
16
[RESOLVED] Had to uncheck adjust keyboard brightness in low light and now it works fine.
The way I read them, I think the other two people in this thread were saying that the checkbox you mentioned doesn't even show up in their Keyboard System Preferences panel. It's as if OS X does not recognize that their Mac has a backlit keyboard.

Works fine here on both PB4 and PB5, but I have 2012 rMBP.

-- Nathan