@Norbert I also clean-installed 14.04 beta 2. Keyboard layout switching doesn't work in lock screen after wake up from suspend (I use Shift+Alt L combination). In 13.10 I still could change the layout using mouse, but in 14.04 that didn't work. As a workaround I pressed 'switch user' and the layout switched also (to default 'En').
@Norbert I also clean-installed 14.04 beta 2. Keyboard layout switching doesn't work in lock screen after wake up from suspend (I use Shift+Alt L combination). In 13.10 I still could change the layout using mouse, but in 14.04 that didn't work. As a workaround I pressed 'switch user' and the layout switched also (to default 'En').