Over the past week or so notifications has reported frequently during the day that two packages need upgrading among the many that come down the pipe. Muon shows nothing. apt-get shows nothing. aptitude shows nothing. synaptic shows nothing. Held packages searched nothing. dpkg --get-selections | grep hold shows nothing. Today notification six packages for upgrades. Showing only four. If I have eighty packages for upgrade, only seventy-eight are installed. Always two extra that do not show. I have tried removing packages individually such as muon and apper but no solution works. Two phantom upgrades! Reproducible: Always Steps to Reproduce: 1. Wait for notifications to advise packages for upgrade. Two will not show in the list. 2. 3. Actual Results: No packages to upgrade Expected Results: Advised about upgrade then upgrade then no more messages The two packages should be found to upgrade. I cannot locate the data source where these phantom package messages are generated so I can reinitialise the database. Hope this helps Thank You
This was likely a distro issue more than a notifications issue, but either way, Plasma 4 has been unmaintained and unsupported for years. If the issue persists with Plasma 5, please open a new bug for your distro.