Attention please: The issue mentioned in my question above was fixed yesterday. Ubuntu-updates popped up and offered a bunch of updates, including updates for the additional drivers menu and jocky. The entries are now listed and working as expected. See here for more information: http://askubuntu.com/questions/423838/ubuntu-12-04-4-64-bit-amd-hd7850 -gpu-issue-with-additional-drivers-menu/424274#424274
Thank you for your time. ** Attachment added: "entries fixed" https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/1282793/+attachment/3989844/+files/Bildschirmfoto%20vom%202014-02-21%2018_50_15.png ** Changed in: software-properties (Ubuntu) Status: Confirmed => Fix Released -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1282793 Title: Amd HD7850 additional drivers bug, three identical entries To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/software-properties/+bug/1282793/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs