The keyboard layout problem with Arch/Cinnarch Cinnamon DE
If you use the Cinnamon Desktop Environment with Arch Linux or Cinnarch and multiply keyboard layouts you may have problem when you are trying to change the keyboard layout.
With the latest Cinnamon update the keyboard layout indicator is visible with all layouts so you can change them from the indicator icon. Before this update the indicator was visible only if you had already change the layout with a shortcut. But changing the keyboard layout from the panel icon is not a solution.