Ubuntu
unity8-desktop-session package

  1. Yakkety (16.10)
  2. Bug #1632772
  3. Comment #10

Comment 10 for bug 1632772

Revision history for this message
willmo (willmo) wrote : Re: GNOME on Wayland does not start from LightDM

It looks like the bug is actually in unity8-desktop-session. It installs /usr/share/lightdm/lightdm.conf.d/45-unity8.conf, which sets session-wrapper=lightdm-unity8-session, which means lightdm-unity8-session is run in order to start *any* session. lightdm-unity8-session is a shell script that's also part of unity8-desktop-session, and looking at its contents, it appears to be buggy because it assumes that any session that doesn't use X (such as Wayland) is Unity 8 and should run upstart instead of lightdm-session.

I was able to work around this by creating a file /etc/lightdm/lightdm.conf.d/00-willmo.conf with contents

[Seat:*]
session-wrapper=lightdm-session

This overrides the offending setting in 45-unity8.conf and sets session-wrapper back to the default, avoiding the Unity 8 assumptions in lightdm-unity8-session. After rebooting, Wayland sessions now work for me.