Replacing xnest with 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.http://www.freedesktop.org/wiki/Software/XephyrXephyr works fu... Read more...

Serious problems with Xorg:xorg-server version: 1.6.3.901same problems: crashUsing UML instead of Xen and Xorg 1.5.3-r6Launching:X -ac :1startkdeWe get blank screen of deathkded: ERROR: Communication problem with kded, it probably crashed.kcminit_startup: cannot connect to X server 192.168.1.100:1ksmserver: cannot connect to X server 192.168.1.100:1on the shell where X was started:Error... Read more...

Problems with Xorg-x11 7.4 e xorg-server 1.5.3-r6When KDE starts, X crashes.Configuration:app-emulation/xen 3.4.1app-emulation/xen-tools 3.4.1 (Xend daemon and tools)sys-kernel/xen-sources  2.6.29-r4x11-base/xorg-server 1.5.3-r6x11-base/xorg-x11 7.4Launched Xen virtual machine with debian.5-0.x86-64, kernel guest domU2.6.29-r4Then:export DISPLAY="ip_of_the_host:1"From the host system:Xnest -... Read more...

Useful for dispatching operating systems that do not use X. It is possible with Xen to start a VNC server, by modifying the start file of each virtual machine. LTSP script launch an application (vncviewer) with specific settings (to avoid compression and, hence, the load on thin client), and it connects to the particular machine. One must act on lts.conf in order to launch a script, that is similar to rdesktop, but it is adapted to VNC.... Read more...

One is not obliged to use LTSP for exporting X to terminals. LTSP is useful for booting up a system in a diskless machine AND for having a useful accounting system, to be used also for selecting available virtual machines to be dispatched on that machine.... Read more...

X gave this problem during testing:Fatal server error:xf86OpenConsole: Cannot open /dev/tty0 (No such file or directory)Example:thin-client up and logged inStarted a gnome-terminal. A terminal of the server appears.Logged as root.Launched xhost +Get this answer:unable to open display localhost:11.0launching: /usr/bin/X -ac :1we get:Fatal Server Errorxf86OpenConsole: Cannot open /d... Read more...