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## Xephyr
Xephyr is a kdrive based X Server which targets a window on a host X Server as its framebuffer. Unlike Xnest it supports modern X extensions ( even if host server doesn't ) such as Composite, Damage, randr etc (no GLX support now). It uses SHM Images and shadow framebuffer updates to provide good performance. It also has a visual debugging mode for observing screen updates.
Possible uses include;
* **Xnest replacement** - Window manager, Composite 'gadget', etc development tool.
* **Toolkit debugging** - rendundant toolkit paints can be observered easily via the debugging mode.
* **X Server internals development** - develop without the need for an extra machine / display.
* **[[Multiterminal with Xephyr|http://en.wikibooks.org/wiki/Multiterminal_with_Xephyr]]** - configuration is a single computer which supports multiple users at the same time
### Screenshot
Lots of Xephyr's in [[action|http://freedesktop.org/~mallum/xephyr-uber.png]].
### Download
Xephyr is available via [[git|Infrastructure/git/Users]] as part of the [[Xserver|http://cgit.freedesktop.org/xorg/xserver/tree/hw/kdrive/ephyr/]] module.
### More Infomation
See the [[README|http://cgit.freedesktop.org/xorg/xserver/tree/hw/kdrive/ephyr/README]]
### Authors
Xephyr was written by Matthew Allum.
-- [[MatthewAllum|MatthewAllum]] - 10 Sep 2004
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