[X2Go-Dev] Bug#569: Cinnamon 1.4: Failed to load session "cinnamon2d"

[Michael DePaulo]

Package: x2goserver
Version: 4.1.0.0-nightly

When I attempt to launch "session type" "custom desktop" "CINNAMON", I
get this error dialog:
Failed to load session "Cinnamon2d"
http://imgur.com/VQ0A1si

I emailed bug report 150 a bunch of details about Cinnamon 1.4 and my
test setup, but those details are not showing up on bug report 150. So
I am copying them (and made minor updates) below:

Clearly the problem is that x2goruncommand has incorrect logic for
launching this version of Cinnamon, 1.4.

Remember that this version of CInnamon, on this version of Linux
Mint, is supported through April 2017.

Version 1.4 is probably used on other distros too.

----

I have the GLX extension enabled on my test system
(/etc/x2go/x2goagent.options has the line to disable GLX commented out)
- Linux mint 13 maya (based on Ubuntu 12.04 precise) 64-bit
- All latest level 1, 2 and 3 OS updates installed.
- cinnamon version: 1.4-UP3
- Cusstom Desktop specified in x2goclient: gnome-session-cinnamon
- x2goserver & x2goserver-xsession: 4.1.0.0-0~1054~ubuntu12.04.1
- nxagent & x2goagent: 2:3.5.0.28-0~448~ubuntu12.04.1

Note the following session files::
batmin at mint-m /usr/share/gnome-session/sessions $ ls
cinnamon.session  gnome-classic.session  gnome-fallback.session

batmin at mint-m /usr/share/gnome-session/sessions $ cat cinnamon.session
[GNOME Session]
Name=Cinnamon
RequiredComponents=cinnamon;gnome-settings-daemon;
IsRunnableHelper=/usr/lib/gnome-session/gnome-session-check-accelerated
FallbackSession=gnome-fallback
DesktopName=GNOME

batmin at mint-m /usr/share/xsessions $ ls
cinnamon.desktop  gnome-classic.desktop  gnome-fallback.desktop  ssh.desktop

batmin at mint-m /usr/share/xsessions $ cat cinnamon.desktop
[Desktop Entry]
Name=Cinnamon
Comment=This session logs you into Cinnamon
Exec=gnome-session-cinnamon
TryExec=/usr/bin/cinnamon
Icon=
Type=Application
X-Ubuntu-Gettext-Domain=cinnamon

batmin at mint-m /usr/share/xsessions $ cat /usr/bin/gnome-session-cinnamon
#! /bin/sh
exec gnome-session --session cinnamon "$@"