I reinstalled OSX El Capitan on my 27" iMac, and enabled FileVault. I also set a firmware password. When I turn the computer on, the wireless mouse and trackpad are unresponsive for a while, but the keyboard is responsive. I am able to log in my typing the first letter of my user name, then the password and return. Once I am logged in, everything works normally.
I tried resetting the PRAM, but that didn't help.
Is this bluetooth lag of the mouse and trackpad due to FileVault? How can I fix this?
thanks, Kevin
iMac, OS X Mavericks (10.9.4), 27"
Posted on Feb 28, 2016 8:03 AM