Xephyr - existing X display
Xephyr [:display] [option ...]
Xephyr(1) General Commands Manual Xephyr(1) NAME Xephyr - X server outputting to a window on a pre-existing X display SYNOPSIS Xephyr [:display] [option ...] DESCRIPTION Xephyr is a kdrive server that outputs to a window on a pre-existing "host" X display. Think Xnest but with support for modern extensions like composite, damage and randr. Unlike Xnest which is an X proxy, i.e. limited to the capabilities of the host X server, Xephyr is a real X server which uses the host X server window as "framebuffer" via fast SHM XImages. It also has support for "visually" debugging what the server is paint- ing. OPTIONS The server accepts all the standard options of Xserver(1) and the fol- lowing additional options: -screen widthxheight sets the screen size. -parent id uses existing window id . If a -screen argument follows a -parent argument, this screen is embedded into the given win- dow. -host-cursor set 'cursor acceleration': The host's cursor is reused. This is only really there to aid debugging by avoiding server paints for the cursor. Performance improvement is negligible. -resizeable Allow the Xephyr window to be resized, even if not embedded into a parent window. By default, the Xephyr window has a fixed size. -no-host-grab Disable grabbing the keyboard and mouse. SIGNALS Send a SIGUSR1 to the server (e.g. pkill -USR1 Xephyr) to toggle the debugging mode. In this mode red rectangles are painted to screen areas getting painted before painting the actual content. The delay between this can be altered by setting a XEPHYR_PAUSE env var to a value in micro seconds. CAVEATS o Rotated displays are currently updated via full blits. This is slower than a normal orientated display. Debug mode will therefore not be of much use rotated. o The '-host-cursor' cursor is static in its appearance. o The build gets a warning about 'nanosleep'. I think the various '-D' build flags are causing this. I haven't figured as yet how to work round it. It doesn't appear to break anything however. o Keyboard handling is basic but works. o Mouse button 5 probably won't work. ATTRIBUTES See attributes(7) for descriptions of the following attributes: +---------------+-------------------+ |ATTRIBUTE TYPE | ATTRIBUTE VALUE | +---------------+-------------------+ |Availability | x11/server/xephyr | +---------------+-------------------+ |Stability | Volatile | +---------------+-------------------+ SEE ALSO X(7), Xserver(1) AUTHOR Matthew Allum <mallum@o-hand.com> 2004 NOTES Source code for open source software components in Oracle Solaris can be found at https://www.oracle.com/downloads/opensource/solaris-source- code-downloads.html. This software was built from source available at https://github.com/oracle/solaris-userland. The original community source was downloaded from https://www.x.org/releases/individ- ual/xserver/xorg-server-1.20.13.tar.gz. Further information about this software can be found on the open source community website at https://www.x.org. X Version 11 xorg-server 1.20.13 Xephyr(1)