1. extensions to XFree86 3.x servers xext provides extensions to XFree86 version 3.x servers. This presently includes a system for 3D rendering under X called PEX (the PHIGS/PHIGS-PLUS Extension to X, in which PHIGS stands for Programmer's Hierarchical Interactive Graphics System), XIE (X Image Extension), and XInput, which can manage the following input devices: * joystick (PC game port type) * Elographics touch screen * MicroTouch touch screens (using stylus or finger) * mouse * Wacom eraser * Wacom cursor * SummaSketch tablet * AceCad tablet * CalComp DrawingBoard tablet * SWITCH virtual device * SGI button box While this package is installable without an X server on the system, it is only useful in conjunction with an XFree86 3.x X server. Note that the loadable extension modules in this package are not compatible with, and are not used by, the XFree86 version 4.x X server. If you intend to use the joystick extension (and the joycal joystick calibration program), and are using a Linux kernel version prior to 2.2, you will need the joystick kernel module package. Note that the PEX extension is not supported on the Alpha architecture. From Debian 3.0r0 APT