%general-entities; ]> GDM GDM is a system service that is responsible for providing graphical logins and managing local and remote displays. &lfs120_checked; Package Information Download (HTTP): Download (FTP): Download MD5 sum: &gdm-md5sum; Download size: &gdm-size; Estimated disk space required: &gdm-buildsize; Estimated build time: &gdm-time; GDM Dependencies Required , , (built after ), and Optional Runtime Dependencies , , and It is recommended to have a dedicated user and group to take control of the gdm daemon after it is started. Issue the following commands as the root user: groupadd -g 21 gdm && useradd -c "GDM Daemon Owner" -d /var/lib/gdm -u 21 \ -g gdm -s /bin/false gdm && passwd -ql gdm Install GDM by running the following commands: sed -e 's@systemd@elogind@' \ -e '/elogind/isession required pam_loginuid.so' \ -i data/pam-lfs/gdm-launch-environment.pam && mkdir build && cd build && meson setup .. \ --prefix=/usr \ --buildtype=release \ -Dgdm-xsession=true \ -Drun-dir=/run/gdm \ -Dlogind-provider=elogind \ -Dsystemd-journal=false \ -Dsystemdsystemunitdir=no \ -Dsystemduserunitdir=no && ninja mkdir build && cd build && meson setup .. \ --prefix=/usr \ --buildtype=release \ -Dgdm-xsession=true \ -Drun-dir=/run/gdm && ninja This package does not come with a usable test suite. Now, as the root user: ninja install -Dinitial-vt=7: Use this switch to make GDM start on VT7 instead of the first free VT. -Ddefault-pam-config=lfs: Use this switch if you did not create the /etc/lfs-release file or distribution auto detection will fail and you will be unable to use GDM. -Dgdm-xsession=true: This enables the installation of the GDM Xsession file. /etc/gdm/custom.conf /etc/gdm/custom.conf The GDM daemon is configured using the /etc/gdm/custom.conf file. Default values are stored in GSettings in the gdm.schemas file. It is recommended that end-users modify the /etc/gdm/custom.conf file because the schemas file may be overwritten when the user updates their system to have a newer version of GDM. On some systems with NVIDIA GPUs, GDM will hide Wayland sessions by default. This is often done to prevent users from encountering problems with buggy drivers, which can result in system lockups, application crashes, power management problems, and graphics slowdowns. If you have an NVIDIA GPU and still want to try running Wayland sessions anyway, execute the following command as the &root; user: ln -s /dev/null /etc/udev/rules.d/61-gdm.rules gdm To start gdm automatically when the system is switched to runlevel 5, install the /etc/rc.d/init.d/xdm script and the /etc/sysconfig/xdm configuration file included in the package and adjust /etc/inittab by running as the root user: make install-gdm In order to permanently set the default runlevel to 5, starting the gdm greeter screen automatically, you can modify /etc/inittab. As the root user: sed /initdefault/s/3/5/ -i /etc/inittab To start the gdm daemon at boot, enable the previously installed systemd unit by running the following command as the root user: systemctl enable gdm GDM will suspend the system when the greeter screen has been running for a while without any interactive input. If you want to disable auto-suspending for any reason (for example if the system is hosting some services besides functioning as a desktop system), as the &root; user, issue: su gdm -s /bin/bash \ -c "dbus-run-session \ gsettings set org.gnome.settings-daemon.plugins.power \ sleep-inactive-ac-type \ nothing" Installed Programs Installed Libraries Installed Directories gdm, gdmflexiserver, and gdm-screenshot libgdm.so and pam_gdm.so (PAM Module) /etc/gdm, /usr/include/gdm, /usr/share/gdm, and /usr/share/help/*/gdm Short Descriptions gdm is a login prompt for GNOME gdm gdm-screenshot is a screenshot tool for GDM gdm-screenshot