gnome-session-46.0

#### Beyond Linux® From Scratch (systemd Edition) - Version 12.2

### Chapter 33. GNOME Libraries and Desktop

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# gnome-session-46.0

## Introduction to GNOME Session

The GNOME Session package contains the GNOME session manager.

This package is known to build and work properly using an LFS 12.2 platform.

### Package Information

- Download (HTTP): https://download.gnome.org/sources/gnome-session/46/gnome-session-46.0.tar.xz

- Download MD5 sum: f68f71cb53d650916f9ef9cb6076f643

- Download size: 476 KB

- Estimated disk space required: 14 MB

- Estimated build time: 0.2 SBU

### GNOME Session Dependencies

#### Required

gnome-desktop-44.1, JSON-GLib-1.8.0, Mesa-24.1.5, Systemd-256.4 (runtime), and UPower-1.90.4

#### Optional

xmlto-0.0.29, and libxslt-1.1.42 with docbook-xml-4.5 and docbook-xsl-nons-1.79.2 (to build the documentation)

## Installation of GNOME Session

When running GNOME under Wayland-1.23.0, environment settings are not imported for the user using the system profile. The Wayland developers are currently undecided on a standard method to provide system environment settings for user sessions. To work around this limitation, execute the following command to make gnome-session use a login shell:

    sed 's@/bin/sh@/bin/sh -l@' -i gnome-session/gnome-session.in

Install GNOME Session by running the following commands:

    mkdir build &&
    cd    build &&

    meson setup --prefix=/usr --buildtype=release .. &&
    ninja

This package does not come with a test suite.

Now, as the `root` user:

    ninja install

Move the documentation to a versioned directory:

    mv -v /usr/share/doc/gnome-session{,-46.0}

This package creates two Xorg based `.desktop` files in the `/usr/share/xsessions/` directory, and two Wayland based `.desktop` files in the `/usr/share/wayland-sessions/` directory. Only one is needed in each directory on a BLFS system, so prevent the extra files showing up as options in a display manager. As the `root` user:

    rm -v /usr/share/xsessions/gnome.desktop &&
    rm -v /usr/share/wayland-sessions/gnome.desktop

## Command Explanations

`--buildtype=release`: Specify a buildtype suitable for stable releases of the package, as the default may produce unoptimized binaries.

## Starting GNOME

The easiest way to start GNOME is to use a display manager. GDM-46.2 is the recommended display manager.

It is also possible to start GNOME from the command line. However, you must still have GDM-46.2 installed for some portions of the desktop to work. One reason to start from the command line is if you want Wayland support on a system that has the proprietary NVIDIA driver installed, since GDM will not show the Wayland session type on such a system.

To start GNOME using xinit-1.4.2, run the following commands:

    cat > ~/.xinitrc << "EOF"
    dbus-run-session gnome-session
    EOF

    startx

Alternatively, to start GNOME with Wayland support, run the following command:

    XDG_SESSION_TYPE=wayland dbus-run-session gnome-session

## Contents

Installed Programs: gnome-session, gnome-session-inhibit, and gnome-session-quit
Installed Libraries: None
Installed Directories: /usr/share/doc/gnome-session-46.0 and /usr/share/gnome-session

### Short Descriptions

gnome-session | is used to start up the GNOME Desktop environment
gnome-session-inhibit | is used to inhibit certain GNOME Session functionality while executing the given command
gnome-session-quit | is used to end the GNOME Session

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