Introduction to Xorg Server

The Xorg Server is the core of the X Window system.



Development versions of BLFS may not build or run some packages properly if dependencies have been updated since the most recent stable versions of the book.

Package Information

Xorg Server Dependencies


libxcvt-0.1.2, Pixman-0.42.2, Xorg Fonts (only font-util), and at runtime: xkeyboard-config-2.38



acpid-2.0.34 (runtime), Doxygen-1.9.6 (to build API documentation), fop-2.8 (to build documentation), libunwind-1.6.2, Nettle-3.8.1, libgcrypt-1.10.1, xcb-util-keysyms-0.4.1, xcb-util-image-0.4.1, xcb-util-renderutil-0.3.10, xcb-util-wm-0.4.2 (all four to build Xephyr), xmlto-0.0.28 (to build documentation), xkeyboard-config-2.38 (for tests), rendercheck (for tests), and xorg-sgml-doctools (to build documentation)

User Notes: https://wiki.linuxfromscratch.org/blfs/wiki/Xorg7Server

Installation of Xorg Server

Install the server by running the following commands:

mkdir build &&
cd    build &&

meson --prefix=$XORG_PREFIX \
      --localstatedir=/var  \
      -Dsuid_wrapper=true   \
      -Dxkb_output_dir=/var/lib/xkb &&

To test the results, issue: ninja test. You will need to run ldconfig as the root user first or some tests may fail.

Now as the root user:

ninja install &&
mkdir -pv /etc/X11/xorg.conf.d &&
cat >> /etc/sysconfig/createfiles << "EOF"
/tmp/.ICE-unix dir 1777 root root
/tmp/.X11-unix dir 1777 root root

Command Explanations

-Dsuid_wrapper=true: Builds the suid-root wrapper for legacy driver support on rootless xserver systems.

-Dsystemd_logind=false: This switch disables elogind integration, allowing Xorg Server to work without having the PAM module configured.

cat >> /etc/sysconfig/createfiles...: This command creates the /tmp/.ICE-unix and /tmp/.X11-unix directories at startup, and ensures that the permissions and ownership are correct as required by the server.

-Dxephyr=true: This option allows building Xephyr if its dependencies are met.


Installed Programs: gtf, X, Xnest, Xorg, Xvfb, and optionally Xephyr
Installed Libraries: several under $XORG_PREFIX/lib/xorg/modules/ including the modesetting_drv.so driver
Installed Directories: /etc/X11/xorg.conf.d, $XORG_PREFIX/include/xorg, $XORG_PREFIX/lib/xorg, and $XORG_PREFIX/share/X11/xorg.conf.d

Short Descriptions


calculates VESA GTF mode lines


is a symbolic link to Xorg


is a nested X server which supports modern X extensions


is a nested X server


is the X11R7 X Server


is the virtual framebuffer X server for X Version 11


provides a video driver for machines using Kernel Mode Setting (KMS). This will use glamor if that has been enabled and the hardware offers acceleration