This is because LightDM assigns each seat a different virtual terminal, and switches to that virtual terminal whenever X is (re)started.
I have some changes to LightDM in progress to add more complete multiseat support. If you are using Ubuntu, please try installing the version of LightDM in my PPA (<https://launchpad.net/~a7x/+archive/multiseat>):
This is because LightDM assigns each seat a different virtual terminal, and switches to that virtual terminal whenever X is (re)started.
I have some changes to LightDM in progress to add more complete multiseat support. If you are using Ubuntu, please try installing the version of LightDM in my PPA (<https:/ /launchpad. net/~a7x/ +archive/ multiseat>):
sudo apt-add-repository ppa:a7x/multiseat
sudo apt-get update
sudo apt-get upgrade
More complete instructions can be found by visiting the PPA page.