KDM ConsoleKit Patch
kevin.kofler at chello.at
Wed Jul 16 16:40:58 BST 2008
Some time ago, I have developed a patch to support ConsoleKit integration in
KDM. I originally based that patch on GDM's equivalent code (by William Jon
McCann). Since then, many other distributions started carrying my patch (or
some variant thereof), and as ConsoleKit registration is required for many
core features of modern distributions to work, e.g. HAL (i.e. access to USB
devices, among other things), PulseAudio (i.e. sound) etc., vanilla KDE is
becoming less and less usable on current distributions.
There were 3 main objections to my original patch:
1. disagreement over whether KDM is the right place to implement this feature,
2. GPL code from GDM being introduced into the X11-licensed KDM backend,
3. code duplication, i.e. ConsoleKit interfacing code copied from elsewhere.
In addition, a way to enable/disable ConsoleKit support dynamically was
Thanks in part to Patrice Dumas, I now have a new patch which resolves
objections 2 and 3 and the enabling/disabling issue, by using ConsoleKit's
* ad 2, the GPLed code is gone and libck-connector is also X11-licensed,
* ad 3, the code is now in a common library
* and support for enabling/disabling is now handled through
This leaves objection 1, however my position there is that KDM is the right
place, because the ConsoleKit authors believe this should be implemented in
the display manager, and because including ConsoleKit support directly in KDM
is a prerequisite for being able to support GDM-style fast user switching in
a later stage. Unfortunately, Ossi, the KDM maintainer, does not agree with
me on this.
For details on the above and for the patch itself, please see the RFE at
So where do we want to go from there? Do we really want to have most, if not
all, major distributions patching KDE with the same patch?
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