user interface/x
- dogtail - GUI test tool and automation framework
- xorg-x11-server-Xdmx - Distributed Multihead X Server and utilities
- xorg-x11-server-Xephyr - A nested server.
- xorg-x11-server-Xnest - A nested server.
- xorg-x11-server-Xorg - Xorg X server
- xorg-x11-server-Xvfb - A X Windows System virtual framebuffer X server.
- xorg-x11-server-sdk - SDK for X server driver module development
- xorg-x11-xdm - X.Org X11 xdm - X Display Manager
- xterm - xterm terminal emulator for the X Window System