Bug#955215: keyboard-configuration: fails to set correct keyboard layout

[Andreas Mohr <andi@lisas.de>]

Hi,

I'm currently on the same page (Ubuntu 20.04.1 fails to activate keyboard state
after dpkg-reconfigure keyboard-configuration, and - USABILITY! -
keyboard-configuration does not even mention that
such a manual state change trigger might be required! *)), thus replying here.

> sudo service keyboard-setup restart
> 
>    * What was the outcome of this action?
> 
> Nothing at all : no change of layout

Did you actually also do what Debian Wiki (currently!?) additionally lists?:

| To apply new settings, restarting the keyboard-setup service should suffice, otherwise you can try to restart kernel input system via udev:
| 
|     udevadm trigger --subsystem-match=input --action=change 

Case in point:

sudo service keyboard-setup restart
didn't work for me, whereas
    udevadm trigger --subsystem-match=input --action=change 
as executed subsequently then did successfully update keyboard state in-place, within an xfce4 session.

*) dpkg-reconfigure keyboard-configuration logging:
# dpkg-reconfigure keyboard-configuration
Your console font configuration will be updated the next time your system
boots. If you want to update it now, run 'setupcon' from a virtual console.
update-initramfs: deferring update (trigger activated)
Processing triggers for initramfs-tools (0.136ubuntu6.2) ...
update-initramfs: Generating /boot/initrd.img-4.9.230-35
#

(at least it does mention some setupcon aspects, but it fails to mention that
keyboard layout state may fail to be updated immediately, as detailed by Debian Wiki)
I am about to file an Ubuntu launchpad bug on this annoying usability omission.

HTH,

Andreas Mohr