This is a problem because , network manager use asynchronous notifications, which are under notify-osd's queue control, hence the difference in notification reception and notification display.
Whereas the volume/brightness/eject notifications are synchronous (or feedback) notifications... they get displayed immediately (replacing and previous sync. notification if displayed)
This is not an upstream issue but rather an Ubuntu specific issue.
This is a problem because , network manager use asynchronous notifications, which are under notify-osd's queue control, hence the difference in notification reception and notification display.
Whereas the volume/ brightness/ eject notifications are synchronous (or feedback) notifications... they get displayed immediately (replacing and previous sync. notification if displayed)
This is not an upstream issue but rather an Ubuntu specific issue.