Dear Debian people, There is an issue in d-bus threading in Qt 5.6.0 that locks up (some plugins of) kded. I'm forwarding a mail by David that contains the link to the patch for this which was green-lit by Thiago (Qt D-Bus maintainer).
This affects the latest Qt from the experimental. > Important Qt 5.6.0 notes > David Edmundson david at davidedmundson.co.uk > Wed Mar 16 13:48:35 UTC 2016 > > Qt 5.6.0 has a few noticable regressions since a DBus change, this causes > a problem where kded may deadblock breaking functionality in Plasma and > potentially any frameworks based application. > > Before shipping Qt 5.6.0 *please* apply the following patch: > https://codereview.qt-project.org/#/c/151459/ > without it, Plasma may completely fail to load. > > The Qt DBus maintainer also recommends that distros backport this: > http://lists.qt-project.org/pipermail/development/2016-March/025272.html > > I would also like to see: > https://codereview.qt-project.org/#/c/151496/ > https://codereview.qt-project.org/#/c/151340/ > included, but they are less important. > > David Cheers, Ivan