Question: How can i disable ALL pop-up notification on Xubuntu 11.10 

I have tried: `sudo apt-get remove notify-osd` 

Which resulted in

```
Reading package lists... Done
Building dependency tree       
Reading state information... Done
Package notify-osd is not installed, so not removed
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

```

Answer: 
Obviously removing `notify-osd` won't work because Xubuntu doesn't use it, it uses `xfce4-notifyd`.

So if you want to *remove* them, remove that package.

```
 sudo apt-get remove xfce4-notifyd

```

If you only want to disable them use this:

```
 sudo mv /usr/share/dbus-1/services/org.xfce.xfce4-notifyd.Notifications.service /usr/share/dbus-1/services/org.xfce.xfce4-notifyd.Notifications.service.disabled

```

To reverse that:

```
 sudo mv /usr/share/dbus-1/services/org.xfce.xfce4-notifyd.Notifications.service.disabled /usr/share/dbus-1/services/org.xfce.xfce4-notifyd.Notifications.service

```

[Source.](http://bitonic.org/blog/?p=24)
Try this:

```
sudo mv /usr/share/dbus-1/services/org.xfce.xfce4-notifyd.Notifications.service /usr/share/dbus-1/services/org.xfce.xfce4-notifyd.Notifications.service.disabled

```