[X2go-User] Review: changes and features in X2Go

Oleksandr Shneyder oleksandr.shneyder at obviously-nice.de
Fri Feb 3 08:53:50 CET 2012


Hello X2Go users,

I want to describe some changes we made in X2Go recently.

== Multi display support features. ==
There are two new features in X2Go to support desktops with more then
one physical display.

1. Run X2Go Session in "full screen" mode on one of several physical
displays.
With this feature you can use one of your physical monitors to display
X2Go session in "full screen" mode.
On this photo you can see a Windows 7 notebook with a connected VGA
monitor running X2Go Session on display 2:
http://www.x2go.org/_media/news:two_sess.png

You can configure this feature using Session Preferences dialog in X2Go
client:
http://www.x2go.org/_media/news:multidisp_set.png

Push "Identify all displays" button to find out the numbers of a
physical displays:
http://www.x2go.org/_media/news:ident_dsip.png

2. Using two or more physical displays as one large virtual display
(Xinerama)
The advantage of Xinerama feature is to only maximize windows to the
dimensions of the active physical display. This can be very useful not
only for thinclients with more then one physical displays, but also if
user stretch their X2Go sessions over more then one display in "window"
mode.

X2Go Session running 3 maximized LibreOffice windows is stretched over 3
physical displays:
http://www.x2go.org/_media/news:xinerama.png

Xinerama configuration of X2Go session will be automatically updated
every time when user moving or resizing his X2Go Session window.

==Verifying if port is free before resuming X2Go Session ==

On start of an X2Go session 3 tcp ports for ssh tunnels (graphic, sound,
sshfs) are reserved. The values of these ports are stored in the X2Go
session database and used by X2Go clients every time an X2Go session
gets resumed. Sometimes it can happen that one of these ports is already
used by another application after the session had been suspended. As
result, X2Go client will be unable to resume such session or start sound
or sshfs tunnel. To avoid this problem X2Go server (>= 3.1.0.0) will
verify if these ports are still unused before the session will be
resumed. In other case new ports will be reserved. The new port values
will be updated in database and sent to the X2Go client.

IMPORTANT: Older versions of X2Go client will be compatible with newest
X2Go servers. If ports have changed between suspend and resume of a
session, older x2goclients will try to reconnect and fail. But on the
next attempt, X2Go client will retrieve the updated port values from the
X2Go session database.


regards,
Alex
-- 
Oleksandr Shneyder
Dipl. Informatik
X2go Core Developer Team

email:  oleksandr.shneyder at obviously-nice.de
web: www.obviously-nice.de

--> X2go - everywhere at home



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