GNOME Bugzilla – Bug 685294
PolicyKit shoud be tried first
Last modified: 2012-12-08 00:38:17 UTC
or even better, should be the only authorization mechanism: * gnomesu is completely deprecated * gksu is on life support in general and, at least on my system, broken for g-s-m
This problem has been fixed in the development version. The fix will be available in the next major software release. Thank you for your bug report.