OK, I know about the gksudo/kdesudo recommendation. And I wouldn't have written this bug report if the consequences of using plain sudo instead were adept_* erroring out or something like that. But being prevented from graphical login altogether is more than just a minor annoyance. How many novice Kubuntu users that just want to try out Gnome (where this unexpected behaviour shows up, too) are expected to know that there even is a .ICEauthority (which doesn't even show up in the graphical file managers in their default configuration)?
OK, I know about the gksudo/kdesudo recommendation. And I wouldn't have written this bug report if the consequences of using plain sudo instead were adept_* erroring out or something like that. But being prevented from graphical login altogether is more than just a minor annoyance. How many novice Kubuntu users that just want to try out Gnome (where this unexpected behaviour shows up, too) are expected to know that there even is a .ICEauthority (which doesn't even show up in the graphical file managers in their default configuration)?