Both .desktop files are the same. As workaround on laptop I've set NoDisplay=false and then it displays in dash. Running from dash it still doesn't request authentication as on pc, but at least it doesn't crash.
[Desktop Entry] Name=Software Sources GenericName=Software Sources Comment=Configure the sources for installable software and updates Exec=software-properties-gtk Icon=software-properties Terminal=false NoDisplay=true X-MultipleArgs=false Type=Application Categories=GNOME;GTK;Settings;X-GNOME-SystemSettings; MimeType=text/x-apt-sources-list; X-KDE-SubstituteUID=true X-Ubuntu-Gettext-Domain=software-properties -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/930972 Title: Different behaviour with same package versions To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/930972/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs