The X Window System (aka X11 or X) is the de facto standard when it comes to windowing systems for bitmap displays on UNIX like environments. The Xorg open implementation, has seen the rise of X ubiquity, since its (X11) original inception at MIT in 1984.

Over all these years, many utility programs have been made to aid in the use and management of X. Some more useful than others, most are gems.

One such gem is XScreenSaver, a collection of 200+ screensavers for UNIX-like environments, developed and still actively maintained by the legendary jwz (Jamie Zawinski) since 1992.

The arch meta package xorg-apps provides a great starting point for some of the useful utilities to manage your graphical environment.

packagepurpose
iceauthICE authority file utility
luitFilter an arbitrary application and a UTF-8 terminal emulator
mkfontscaleCreate an index of scalable font files for X
sessregRegister X sessions in system utmp/utmpx databases
setxkbmapSet the keyboard using the X Keyboard Extension
smproxyAllows X11R6 session for ALL clients
x11perfSimple X server performance benchmarker
xauthX.Org authorization settings program
xbacklightRandR-based backlight control application
xcmsdbColor characterisation utility
xclipClipboard on the CLI
xcursorgenCreate an X cursor file from PNG images
xdpyinfoDisplay information utility for X
xdriinfoQuery configuration information of DRI drivers
xevPrint contents of X events
xfontselLists fonts and picker in XLFD
xgammaAlter a monitor’s gamma correction
xhostServer access control program for X
xinputSmall commandline tool to configure devices
xkbcompX Keyboard description compiler
xkbevdXKB event daemon
xkbutilsXKB utility demos
xkillKill a client by its X resource
xloadGraphs CPU load
xlockLockscreen with optional screensaver
xlogoDraws X Window System logo
xlsatomsList interned atoms defined on server
xlsclientsList client applications running on a display
xmodmapUtility for modifying keymaps and button mappings
xprPrint an X window dump from xwd
xpropProperty displayer for X
xrandrPrimitive command line interface to RandR extension
xrdbX server resource database utility
xscreensaver
xrefreshRefresh all or part of an X screen
xsetUser preference utility for X
xsetrootSet root window background to pattern or color
xvinfoShow video adaptor capabilities
xwdX Window System image dumping utility
xwininfoCLI show info about windows
xwudX Window System image undumping utility
xzoomMagnify, rotate or mirror screen