xmessage popup to other users

[Bynw]

I am wanting to send a popup message to another user logged on the system. They would be using the GUI (GNOME) desktop while I would be at a remote location and SSH'ed into the box.

using w
I am able to see they are on display :1

So I attempt to use xmessage (or gxmessage both are installed) and this is what happens:

chris@outlaw:~$ xmessage -display :1 -center "hi"
No protocol specified
Error: Can't open display: :1


I know there has to be a way that as a sudoer I can send the message to their display but as of yet I have not been able to discover it on my own. Any help would be appreciated.

Thank you.

[Cheesehead]

Try:

DISPLAY=:1 xmessage -center "hi"

[Bynw]

Unfortunately that did not work either.




chris@outlaw:~$ w
20:59:25 up 2 days, 3:32, 3 users, load average: 0.57, 0.45, 0.33
USER TTY FROM LOGIN@ IDLE JCPU PCPU WHAT
chris tty7 :0 Fri17 2days 5:00m 2.98s gnome-session
chris pts/0 173-25-*-*.c 20:59 0.00s 0.65s 0.01s w
kristen tty9 :2 16:54 2days 4:31 0.24s gnome-session
chris@outlaw:~$ DISPLAY=:2 xmessage -center "Testing, one two and three!"
DISPLAY=:2 xmessage -center "Testing, one two and three"
No protocol specified
Error: Can't open display: :2

[discodex]

This may be a permissions issue. You may have to run:

sudo DISPLAY=:2 xmessage -center "Testing, one two and three!"