The XCB util module provides a number of libraries which sit on top of libxcb, the core X protocol library, and some of the extension libraries. These experimental libraries provide convenience functions and interfaces which make the raw X protocol more usable. Some of the libraries also provide client-side code which is not strictly part of the X protocol but which has traditionally been provided by Xlib.

The XCB util module provides the following libraries:

- aux: Convenient access to connection setup and some core requests.

- atom: Standard core X atom constants and atom caching.

- event: Some utilities that have little to do with events any more.

Xorg misc-cyrillic fonts.

Xmessage displays a message or query in a window. The user can click on a button to dismiss it or can select one of several buttons to answer a question. Xmessage can also exit after a specified time.

The XCB util module provides a number of libraries which sit on top of libxcb, the core X protocol library, and some of the extension libraries. These experimental libraries provide convenience functions and interfaces which make the raw X protocol more usable. Some of the libraries also provide client-side code which is not strictly part of the X protocol but which has traditionally been provided by Xlib.

The XCB util-keysyms module provides the following library:

- keysyms: Standard X key constants and conversion to/from keycodes.

Xorg arabic-misc font.

xcompmgr is a sample compositing manager for X servers supporting the XFIXES, DAMAGE, RENDER, and COMPOSITE extensions. It enables basic eye-candy effects.

This package provides types which mirror the structures used in the XCB code generation XML files and parses these XML files into Haskell data structures.

Xmag displays and captures a magnified snapshot of a portion of an X11 screen.

xf86-video-vmware is a VMware SVGA video driver for the Xorg X server.

X Resource extension library.

xf86-video-freedreno is a 2D graphics driver for the Xorg X server. It supports a variety of Adreno graphics chipsets.

Xorg Core X11 protocol client library.

Xorg sony-misc fonts.

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

XRDB is used to get or set the contents of the RESOURCE_MANAGER property on the root window of screen 0, or the SCREEN_RESOURCES property on the root window of any or all screens, or everything combined. You would normally run this program from your X startup file.

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

The xkbprint utility visualises (``prints'') an XKB keyboard description as printable or encapsulated PostScript. It accepts any compiled keymap (.xkm) file that includes a geometry description, or can obtain one from a running X server.

API for Xinerama extension to X11 protocol.

Library for the Render Extension to the X11 protocol.

Virtual/offscreen frame buffer driver for the Xorg X server.

Xrefresh is a simple X program that causes all or part of your screen to be repainted. This is useful when system messages have messed up your screen.

Twm is a window manager for the X Window System. It provides titlebars, shaped windows, several forms of icon management, user-defined macro functions, click-to-type and pointer-driven keyboard focus, and user-specified key and pointer button bindings.

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

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.