XCB-Proto provides the XML-XCB protocol descriptions that libxcb uses to generate the majority of its code and API. XCB-Proto is separated from libxcb to allow reuse by other projects, such as additional language bindings, protocol dissectors, or documentation generators.

XCB-Proto also contains language-independent Python libraries that are used to parse an XML description and create objects used by Python code generators in individual language bindings.

v86d provides a backend for kernel drivers that need to execute x86 BIOS code. The code is executed in a controlled environment and the results are passed back to the kernel via the netlink interface. v86d is required by the uvesafb Linux kernel module that provides an fbdev framebuffer when Kernel Mode Setting is unavailable. It can be a last resort when no other Xorg X server driver works.

Xaw is the X 3D Athena Widget Set based on the X Toolkit Intrinsics (Xt) Library.

Print Extension defines a protocol for a portable, network-transparent printing system.

Library for the X Video Extension to the X11 protocol.

XAuth program is used to edit and display the authorization information used in connecting to the X server.

xf86-input-synaptics is a touchpad driver for the Xorg X server.

Xorg dec-misc font.

XKB event daemon listens for the specified XKB events and executes requested commands if they occur.

Xorg cronyx-cyrillic font.

Xorg Display Manager Control Protocol library.

Xorg font encoding files.

The xclock program displays the time in analog or digital form.

XLsClients is used to list information about the client programs running on X server.

xlsfonts lists fonts available from an X server via the X11 core protocol.

SessReg is a simple program for managing utmp/wtmp entries for X sessions. It was originally written for use with xdm, but may also be used with other display managers such as gdm or kdm.

xf86-video-savage is an S3 Savage video driver for the Xorg X server.

Uim is a multilingual input method library and environment. It provides a simple, easily extensible and high code-quality input method development platform, and useful input method environment for users of desktop and embedded platforms.

Library for the Render Extension to the X11 protocol.

Xmodmap is used to display and edit the keyboard modifier map and keymap table that are used by client programs running on X server to convert event keycodes into keysyms. It is usually run from the user's session startup script to configure the keyboard according to personal tastes.

EGLExternalPlatform is an specification of the EGL External Platform interface for writing EGL platforms and their interactions with modern window systems on top of existing low-level EGL platform implementations. This keeps window system implementation specifics out of EGL drivers by using application-facing EGL functions.

XKill is used to force the X server to close connections to clients. This program is very dangerous, but is useful for aborting programs that have displayed undesired windows on a user's screen.

XVInfo is used to print out the capabilities of any video adaptors associated with the display that are accessible through the X-Video extension.

Imake is a deprecated source code configuration and build system which has traditionally been supplied by and used to build the X Window System in X11R6 and previous releases. As of the X Window System X11R7 release, the X Window system has switched to using GNU autotools as the primary build system, and the Imake system is now deprecated, and should not be used by new software projects. Software developers are encouraged to migrate software to the GNU autotools system.