I just updated my mac to El Capitan and my HHKB stopped being able to wake it from sleep. It's a 2011 iMac and I did a clean install of El Capitan with the keyboard plugged in, using it to type in all the set up stuff for a "new" mac. I have tried with and without the driver installed, different usb cables, different usb ports, restarting my computer, a bunch of dip switch combinations, and I even unplugged and replugged the controller. I have also updated the "change keyboard type" setting every time I changed something. My planck wakes my computer from sleep just fine, and the HHKB wakes up my 12" MacBook running the same version of OS X. It was working fine when I was running Yosemite.
The real kicker, and why I don't want to just use my house is - It will also be unresponsive for the first 5 or so keypresses after sleep
Any suggestions on fixes past buying a hasu controller?