Description of problem: I have added rpmfusion using "rpm -ihv http://....". yum and yumex work fine with the extra repo. Synaptic fails to see the extra repo. As a result if an unsuspecting user hits "reload package information", "mark all updates" and perform actions he is likely to suffer significant breakage - synaptic will remove all "extra" packages it does not know about (at least) when they confilct with an update. I was not sure whether to mark it is synaptic or apt problem, maybe its not really a bug but it is very unpleasant behaviour at the least.
yum and apt use different configuration files. yum uses /etc/yum.repos.d/ apt uses /etc/apt/sources.list.d/ RPMFusion's *-release rpm ships only the configuration files for yum. (Actually, I see they also have rpmfusion-*-package-config-smart for the Smart tool, but nothing for apt.) You can discuss it with RPMFusion.
thanks for looking - that is https://bugzilla.rpmfusion.org/show_bug.cgi?id=1137 which is also there since a while.