Unity session entry in lightdm has a white circle logo

[Walter Garcia-Fontes]

After upgrading to 17.10 from 17.04, and switching back to lightdm from gdm3 to be able to start the Unity 7 desktop, the entry in the login screen for Unity 7 has a white circle as a logo (the Ubuntu logo is now assigned to the default Gnome option). A logo should be created to distinguish the Unity 7 desktop.

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: unity-session 3.25.90-0ubuntu4
ProcVersionSignature: Ubuntu 4.12.0-13.14-generic 4.12.10
Uname: Linux 4.12.0-13-generic x86_64
ApportVersion: 2.20.7-0ubuntu1
Architecture: amd64
CurrentDesktop: Unity:Unity7:ubuntu
Date: Wed Sep 13 19:31:07 2017
InstallationDate: Installed on 2015-10-17 (696 days ago)
InstallationMedia: Ubuntu 15.04 "Vivid Vervet" - Release amd64 (20150422)
PackageArchitecture: all
SourcePackage: gnome-session
UpgradeStatus: Upgraded to artful on 2017-09-12 (1 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[ventrical (dale-f-beaudoin)]

@sebastien,

Could you point me to the file to look at please?

thanks

[Walter Garcia-Fontes (walter-garcia)]

@ventrical, it's:
/usr/share/unity-greeter/unknown_badge.png