"[14.04] KDE Login Error "Could not start dbus. Can you call qdbus?"

[Kaj Haulrich]

On 09-04-2014 10:46, Kaj Haulrich wrote:
> On 09-04-2014 03:46, Bernard Gray wrote:
>> Hi Guys,
>> Me again - the dist-upgrade on my 14.04 machine today yielded a
>> complete KDE Desktop failure. After I login (KDM) it drops me to a
>> wallpaper screen with a basic xorg window displaying:
>>
>>   "Could not start dbus. Can you call qdbus?"
>>
>> ...and an [okay] button.
>> The okay button does nothing when you click it, and my desktop is
>> unusable -
>>
>> The system dbus is running, I assume this is referring to the session
>> dbus instance that is not starting. If I run qdbus in a tty:
>>
>> $ DISPLAY=:0 qdbus
>> :1.0
>> org.freedesktop.DBus
>> $ echo $?
>> 0
>>
>> I've seen one other report of this on an unofficial(?) french ubuntu
>> forum:
>> https://forum.ubuntu-fr.org/viewtopic.php?pid=16537651
>>
>> I'm installing gnome as we speak to get running for now, will happily
>> do more troubleshooting if someone can guide me -
>
> This nasty bug hit me this morning, just as I was going to do a lot of
> work. Damn. None of the quirks mentioned in this thread worked on my
> 14.04 Kubuntu. So in order to get things done I installed Xubuntu
> alongside Kubuntu:
>
> 'sudo apt-get install xubuntu-desktop'
>
> which took about 4 minutes. Rebooted and logged into xubuntu. Everything
> is dandy, and after a few tweaks in the settings-manager (like changing
> the background, adding a panel with my preferred applications etc.) my
> desktop looks (almost) like my usual kde. Back to real work now...

I forgot to mention that in case you wonder how I could issue the 
command when nothing works, just open a tty and log in:

<Ctrl><Alt><F1> and type username and password.

When done, and xubuntu finished installing:

'sudo shutdown -r now'

After the greeter comes up, log into Xubuntu.

HTH

Kaj Haulrich
>