* This affects three systems I have installed it on, two laptops, and a desktop. All use intel graphics.
* In all cases, disconnecting a monitor crashes the session (but not all of X11, I can still see mouse)
* In all cases, using another DM I cannot recreate the failure.
It also is still happening on Kubuntu CI branch, so it hasn't (yet anyway) been fixed upstream
Chiming in to say that this affects me too.
Further detail I can add:
* This affects three systems I have installed it on, two laptops, and a desktop. All use intel graphics.
* In all cases, disconnecting a monitor crashes the session (but not all of X11, I can still see mouse)
* In all cases, using another DM I cannot recreate the failure.
It also is still happening on Kubuntu CI branch, so it hasn't (yet anyway) been fixed upstream