xfreerdp no keyboard input when launched from remote session over hamachi vpn

[toobuntu]

This happens when connecting to ubuntu remotely from a mac, and invoking xfreerdp from within the remote session.

To reproduce
1. join hamachi vpn network, connect and go online
2. option 1: connect over ssh and launch xfreerdp:
    $ ssh -C -c aes256-cbc -X <user>@<remote-hamachi-ipv4> # xfreerdp is unusable without the ssh compression
    $ xfreerdp -u <user> -d <domain> -g 1678x972 -a 32 -x 0x00000180 -k 0x00000409 --plugin cliprdr <windows-hostname>
3. option 2: use vnc or x2go and launch xfreerdp
 a1. if using vnc, connect over ssh and start a tightvnc session:
    $ ssh -C -c aes256-cbc -X <user>@<remote-hamachi-ipv4>
    $ tightvncserver -geometry 2048x1100
 a2. if using x2go, connect over ssh and enable desktop sharing:
    $ ssh -C -c aes256-cbc -X <user>@<remote-hamachi-ipv4>
    $ pyhoca-cli --server <local-hostname> --list-desktops --user <user> --add-to-known-hosts
    $ pyhoca-cli --server <local-hostname> --share-desktop <user>@:1 --share-mode 1 --user <user> --add-to-known-hosts
 b. from a different machine over the WAN (the mac), connect to ubuntu over vnc or x2go
 c. launch xfreerdp and attempt to type in MS Word, Notepad, Outlook, etc.:
    xfreerdp -u <user> -d <domain> -g 1678x972 -a 32 -x 0x00000180 -k 0x00000409 --plugin cliprdr <windows-hostname>

Expected behavior
keyboard input

Actual behavior
no keyboard input

Notes
mouse works fine
xfreerdp works as expected when launched from the physical machine (versus over a remote vnc connection)
vpn required to punch through firewall, so unable to test without it
copy/paste with the mouse does work
keyboard input on the ssh virtual terminal does work
keyboard input within the vnc and x2go sessions does work
keyboard input for other x11 apps launched from the ssh -X session work, e.g. gedit

Versions
hamachi on mac 2.1.0.120
logmein-hamachi on ubuntu 2.1.0.17-1
haguichi (hamachi gui) on ubuntu 1.0.19-1~webupd8~precise
ssh on mac OpenSSH_5.2p1, OpenSSL 0.9.8r 8 Feb 2011
tightvncserver on ubuntu 1.3.9-6.2ubuntu2
freerdp-x11 on ubuntu 1.0.1-1ubuntu2.2
libfreerdp-plugins-standard on ubuntu 1.0.1-1ubuntu2.2
libfreerdp1 on ubuntu 1.0.1-1ubuntu2.2
target is win 7 pro 32 bit

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: freerdp-x11 1.0.1-1ubuntu2.2
ProcVersionSignature: Ubuntu 3.2.0-35.55-generic 3.2.34
Uname: Linux 3.2.0-35-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: amd64
Date: Sat Jan 26 17:38:13 2013
ExecutablePath: /usr/bin/xfreerdp
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120226)
MarkForUpload: True
SourcePackage: freerdp
UpgradeStatus: No upgrade log present (probably fresh install)