Keyboard shortcut for locking screen in macOS Sierra? In previous versions of OSX, I could use Ctrl Shift  Power on my built in keyboard, or Ctrl Shift  Eject on my (old) Apple bluetooth keyboard to lock the screen. 

After upgrading to Sierra, that shortcut stopped working. Using Karabiner-EventViewer I discovered that pressing the built in power button triggers SysKey 0x6, and the Bluetooth keyboard Eject triggers no events. 

Whats going on, and how can re-enable that shortcut?
In macOS High Sierra (10.13) there is a 'Lock Screen' option built in the Apple menu. 

And finally a shortcut ctrl + cmd + Q :-)