On 8/6/19 12:13 PM, Danishka Navin wrote:
Imagine no user logged in to neither GUI nor CLI but a background
service is running.
Is it possible to send a notification to GUI after completion of the
processing running on the background?
So you want to send a notification to the gdm login screen? You can do
that using the gdm user's dbus and the notify2 python library. Install
"python3-notify2" and create a python script for the notification
(example below). Then you can run:
sudo -u gdm DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/42/bus
/tmp/notif.py
My test script was at /tmp/notif.py
# cat /tmp/notif.py
#!/usr/bin/python3
import notify2
notify2.init("my test")
n = notify2.Notification("Hey you!", "information here")
n.show()
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