D-Bus connection refused: access control or what ?

Wladimir Mutel mwg at mwg.dp.ua
Thu Dec 3 19:31:08 UTC 2009


	I have Kubuntu 9.10 64-bit on a notebook. I boot the system,
	log in the KDE as user mwg and put the notebook on my wireless network.
	Then I log into the notebook remotely under the same user,
	by ssh with X forwarding (ssh -X). I remember, earlier I could run
	various KDE programs (konsole, dolphin, k3b) remotely and get their GUIs
	on my another system. But now I get the messages like :

$ k3b
<unknown program name>(3978)/: KUniqueApplication: Cannot find the D-Bus session 
server:  "Failed to connect to socket /tmp/dbus-vfQ8rdARjG: Connection refused"

<unknown program name>(3977)/: KUniqueApplication: Pipe closed unexpectedly.

	The same for konsole, dolphin, probably other KDE programs.
	Plain X programs like xterm, xclock, seamonkey, skype work well
	as usual.

	What could be wrong in my situation ? May be I accidentally remove some
	important package ? Or should I do any dbus initialization by hand,
	before running KDE apps ? To be fair, I don't use full Kubuntu, I have
	selectively removed packages I don't need.

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