GNOME plans/features requiring systemd

Sometime in the future

User instance of systemd for session management

There are two ways to do this - keep gnome-session almost entirely unchanged. Second, delete most of the gnome-session code (including XSMP/DBus API?).

Application sandboxing

Fallback path: Just don't sandbox?

Planned for 3.12

Upower 0.99

Upower 0.99 has removed the support for suspend/resume and hibernate. In various places where this was previously used, corresponding logind functionality is used: gnome-settings-daemon, gnome-control-center, gnome-shell, telepathy-mission-control, tracker

Log/event viewer that talks directly to journald

Fallback path: No log/event viewer, or keep gnome-system-log around

See Design/Apps/Logs

Planned for 3.8

Use systemd inhibitor api for lid-close handling

No easy fallback to ck/upower, the have no comparable api. Could have a separate power plugin for fallback

Affected modules: gnome-settings-daemon, gnome-shell

Session tracking

Centralize the session tracking code in gnome-session, expose it as a D-Bus property for other modules

Present in 3.6

Offline updates

The systemd dependency is confined to PackageKit - gnome-shell just looks for the presence of /var/lib/PackageKit/prepared-update

Showing systemd-specific information in gnome-system-monitor

Fallback: compile with --disable-systemd

Use the timedated D-Bus interface for setting time/date in gnome-control-center

Session tracking

We have code in various modules to talk to either systemd or ck for active session tracking: gnome-session, gnome-settings-daemon, gnome-shell