xephyr
{{distinguish|Zephyr (disambiguation){{!}}Zephyr}}
{{Infobox software
| name = X.Org Server
| title = Xephyr
| logo =
| logo caption =
| logo_size =
| logo_alt =
| screenshot = Xephyr-IceWM-Fluxbox-LinuxMint.png
| caption = Three recursive levels of nested Xephyr sessions, running on Linux Mint
| screenshot_size =
| screenshot_alt =
| collapsible =
| author = Matthew Allum
| developer = freedesktop.org
| released = {{Start date and age|2007|01|01}}
| discontinued =
| programming language = C
| operating system =
| platform =
| size =
| language =
| language count =
| language footnote =
| genre = Display server
| license = MIT License
| website = {{URL|https://freedesktop.org/wiki/Software/Xephyr/}}
}}
Xephyr is a display server software implementing the X11 display server protocol based on KDrive which targets a window on a host X Server as its framebuffer. It is written by Matthew Allum. Xephyr is an X-on-X implementation and runs on X.Org Server and can work with Glamor.{{cite web
| url = https://lists.x.org/archives/xorg-announce/2014-July/002457.html
| title = ANNOUNCE: xorg-server 1.16.0
| publisher = freedesktop.org
| date = 2014-07-17}} Future versions could make use of libinput.{{citation needed|date=July 2014}} Replacing Xephyr with the xf86-video-dummy and xf86-video-nested drivers in the normal X.Org server is being considered as part of X11R7.8.{{cite web
| url = https://www.phoronix.com/scan.php?page=news_item&px=MTEyMTI
| title = X.Org 7.8 Will Not Come For A While
| last = Larabel
| first = Michael
| publisher = Phoronix
| date = June 16, 2012
| access-date = February 11, 2015}}
Features
Unlike the similar Xnest, Xephyr supports modern X extensions (even if the host server does not) such as composite, damage, and randr. It uses SHM images and shadow framebuffer updates to provide good performance. It also has a visual debugging mode for observing screen updates.
Limitations
Xorg's version of Xephyr uses only software rendering for OpenGL, but Feng Haitao has developed a [https://github.com/fenghaitao/xserver-with-gl-accelerated-xephyr forked version of Xephyr] which can do hardware-accelerated rendering if the underlying X server has the capability.
See also
References
{{Reflist}}
External links
- {{Official website|https://freedesktop.org/wiki/Software/Xephyr/}}
{{freedesktop.org}}
{{XWinSys}}