UBUNTU - remote connection using rdp protocol failure connecting to 12.04

Premise:
I use Ubuntu 12.04 with classical gnome interface ( no unity )

Question:

new install of 12.04 64 bit
 installed vnc4server and xrdp
 trying to connect remotely to it using rdp protocol
 just getting blank screen with my desktop background
 then dialog box saying /usr/bin/compiz "the application has closed unexpectently"
 what can i try to allow me to access my desktop?

answer:

In 12.04 for Gnome-Classic with no effects use:

echo "gnome-session --session=gnome-fallback" > ~/.xsession

Riconfigurare Xorg.conf su Packard Bell EasyNote TK85

Dopo fresh install Ubuntu 12.04 e installazione bumblebee per gestire Nvidia Optimus, Xorg non piu funzionante

da Xorg.0.log

non trovava piu i driver di nulla, quindi rimetto almeno quelli intel

fem@ordinateur:~$ sudo apt-get install xserver-xorg-video-intel

e qualcosa rivà ma niente touchpad (si mouse usb) e risoluzione sballata

editare xorg.conf e portare risoluzione a 1366x768

riavviare X , ctrl-alt-F1 killandolo /usr/bin/X

ok risoluzione touchpad nada

fem@ordinateur:~$ sudo apt-get install xserver-xorg-input-synaptics

riavviare X , ctrl-alt-F1 killandolo /usr/bin/X

sembra ok e anche touchpad ok

Riconfigurare optimus ....seguire guida

http://bumblebee-project.org/install.html#Ubuntu

ovvero:

sudo add-apt-repository ppa:bumblebee/stable

sudo add-apt-repository ppa:ubuntu-x-swat/x-updates
sudo apt-get update

sudo apt-get install bumblebee bumblebee-nvidia linux-headers-generic


reboot or login