GDM is a system service that is responsible for providing graphical logins and managing local and remote displays.
![[Note]](../images/note.png)
Development versions of BLFS may not build or run some packages properly if LFS or dependencies have been updated since the most recent stable versions of the books.
Download (HTTP): https://download.gnome.org/sources/gdm/45/gdm-45.0.1.tar.xz
Download MD5 sum: 4912429c0231a95fedd086d1ac8f54ea
Download size: 836 KB
Estimated disk space required: 34 MB
Estimated build time: 0.3 SBU
AccountsService-23.13.9, DConf-0.40.0, libcanberra-0.30 (built after GTK+-3.24.38), and Linux-PAM-1.5.3
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 gdmInstall GDM by running the following commands:
mkdir build &&
cd build &&
meson setup .. \
--prefix=/usr \
--buildtype=release \
-Dgdm-xsession=true \
-Drun-dir=/run/gdm &&
ninjaThis package does not come with a usable test suite.
Now, as the root user:
ninja install
--buildtype=release: Specify a buildtype
suitable for stable releases of the package, as the default may
produce unoptimized binaries.
-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.
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