Public bug reported:
The System Settings menu stopped working since Trusty. The reason is
that the included gnome-session files are out of date: they use gnome-
settings-daemon, but the required gnome-control-center is no longer
installed by default.
While installing that package makes it "work," I believe the correct fix
is to do exactly what gnome-session-metacity already does, and use
unity-settings-daemon/unity-control-center instead.
The two files that need updating appear to have been cloned from gnome-
flashback-metacity at some point in the past, and not gotten updated
since. It's easy to just overwrite them with new ones:
cd /usr/share/gnome-session/sessions && sed 's/metacity/xmonad/g'
gnome-flashback-metacity > gnome-flashback-xmonad
sed 's/metacity/xmonad/g' /usr/lib/gnome-flashback/gnome-flashback-
metacity > /usr/bin/gnome-flashback-xmonad
With these two changes, it works perfectly: unity-settings-daemon is
running, and the Systems Settings menu brings up unity-control-panel.
As an aside, that second file belongs in /usr/lib/gnome-flashback/, not
/usr/bin. If moving it, simply update /usr/share/xsessions/gnome-
flashback-xmonad.desktop with the new location.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: xmonad 0.12-1 [modified:
usr/share/gnome-session/sessions/gnome-flashback-xmonad.session
usr/share/xsessions/gnome-flashback-xmonad.desktop]
ProcVersionSignature: Ubuntu 4.4.0-64.85-generic 4.4.44
Uname: Linux 4.4.0-64-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
CurrentDesktop: GNOME-Flashback:GNOME
Date: Wed Mar 8 22:42:37 2017
InstallationDate: Installed on 2017-02-19 (18 days ago)
InstallationMedia: Ubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
SourcePackage: xmonad
UpgradeStatus: No upgrade log present (probably fresh install)
** Affects: xmonad (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug xenial
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https://bugs.launchpad.net/bugs/1671355
Title:
Outdated gnome-session files break System Settings menu
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