the fact that dialog was not displayed has nothing to do with unity, it's pkexec which requires a config file allowing to keep the display for the command being run, the bug was in gnome-system-log
the fact that unity doesn't display command line errors in a graphical way when an application fails to start is another issue which got reported and is already being tracked in another ticket
the fact that dialog was not displayed has nothing to do with unity, it's pkexec which requires a config file allowing to keep the display for the command being run, the bug was in gnome-system-log
the fact that unity doesn't display command line errors in a graphical way when an application fails to start is another issue which got reported and is already being tracked in another ticket