Created attachment 431774 [details]
mockup of 3 views
Installation of updates with PackageKit gave me the attach dialog(s). First how it looked, then how it looked after "More details", then resized to the "perfect" size.
1. There is no clear indication that it is a serious problem and that installation fails. When I press Close it just goes back to the update list. A "Package installation failed" in a visible place would be helpful.
2. When I press "More details" in this kind of window then the output is usually too big for the window. Please resize the window (to for example 80 characters or as long as the lines are) and/or make it possible to maximize the window.
The best way to fix this bug would be to make it impossible to push broken packages to stable releases, like I understand is being done at the moment. I don't think making the user experience better in the front end is the thing to focus on.