pi@raspberrypi ~ $ ssh -X raspberrypi -l pi
The authenticity of host 'raspberrypi (127.0.1.1)' can't be established.
ECDSA key fingerprint is 9d:a2:b2:ac:e5:65:95:dc:73:d1:29:52:89:eb:ec:9f.
Are you sure you want to continue connecting (yes/no)? yes
Warning: Permanently added 'raspberrypi' (ECDSA) to the list of known hosts.
pi@raspberrypi's password:
Linux raspberrypi 3.6.11+ #538 PREEMPT Fri Aug 30 20:42:08 BST 2013 armv6l

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.
Last login: Thu Nov 14 10:27:09 2013 from ubuntu.lan
pi@raspberrypi ~ $ startx


X.Org X Server 1.12.4
Release Date: 2012-08-27
X Protocol Version 11, Revision 0
Build Operating System: Linux 3.2.0-2-mx5 armv7l Debian
Current Operating System: Linux raspberrypi 3.6.11+ #538 PREEMPT Fri Aug 30 20:42:08 BST 2013 armv6l
Kernel command line: dma.dmachans=0x7f35 bcm2708_fb.fbwidth=656 bcm2708_fb.fbheight=416 bcm2708.boardrev=0x2 bcm2708.serial=0xeb2d29d7 smsc95xx.macaddr=B8:27:EB:2D:29:D7 sdhci-bcm2708.emmc_clock_freq=100000000 vc_mem.mem_base=0xec00000 vc_mem.mem_size=0x10000000  dwc_otg.lpm_enable=0 console=ttyAMA0,115200 kgdboc=ttyAMA0,115200 console=tty1 root=/dev/mmcblk0p2 rootfstype=ext4 elevator=deadline rootwait
Build Date: 20 April 2013  05:19:09AM
xorg-server 2:1.12.4-6 (Julien Cristau <jcristau@debian.org>)
Current version of pixman: 0.29.3
        Before reporting problems, check http://wiki.x.org
        to make sure that you have the latest version.
Markers: (--) probed, (**) from config file, (==) default setting,
        (++) from command line, (!!) notice, (II) informational,
        (WW) warning, (EE) error, (NI) not implemented, (??) unknown.
(==) Log file: "/var/log/Xorg.2.log", Time: Thu Nov 14 10:28:33 2013
(==) Using system config directory "/usr/share/X11/xorg.conf.d"