How to start a notification daemon

[DaveLevy]

I am using.

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Linux raspberrypi 5.10.103-v7+ #1529 SMP Tue Mar 8 12:21:37 GMT 2022 armv7l GNU/Linux

I am trying to use notify-send. It does not display to the desktop, but does display when queried an error status of 0.

I have tried to install the mate-notification daemon and then the Gnome notification daemon. Both fail to connect to desktop.

This is the gnome error message.

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No protocol specified
Unable to init server: Could not connect: Connection refused
(notification-daemon:9892): Gtk-WARNING **: 12:13:14.871: cannot open display: :10.0

xeyes works

DISPLAY=:10.0 is the default set when opening a Terminal window.

What am I doing wrong?

[kerry_s]

those are for the wrong desktop.
remove them, then run this:

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sudo apt -y install xfce4-notifyd && notify-send 'your notifications look like this'

[thagrol]

DISPLAY=:10.0 is the default set when opening a Terminal window.

That looks unusual. A locally connected display would usually be :0.0. :10.0 (or sometimes localhost:10.0) is what I'd expect when connecting over ssh with X11 forwarding enabled on the client. For that to work you need to have an X server running on the client side.

Of course, I'm referring to the default configuration of RPiOS, you configuration may be different.

VNC in virtual desktop mode may also use :10. In the default mode that too wil be using :0.

[DaveLevy]

those are for the wrong desktop.
remove them, then run this:

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sudo apt -y install xfce4-notifyd && notify-send 'your notifications look like this'

Thank you this seems to work