Does dbus required x11? dbus-launch query

Nirav Rabara nirav.rabara at
Wed Sep 9 23:11:21 PDT 2009

Thanks Thiago,

Then why my qt dbus example code(listnames, pingpong, car&controller,
complexpingpong, dbus-chat) are failed even though dbus session bus is

Its show me fail to connect to session bus, Try run eval 'dbus-launch

Am I made any mistake in qt cross compilation with dbus???

Can u please tell me what is
> But note that it's backticks, not forward ticks (it's `, not ').

What else should I do to get connection of session bus.

sorry for full senior...

Your suggestion would be a great help for me.
Nirav Rabara 

Bugzilla from thiago at wrote:
> Em Quarta-feira 9. Setembro 2009, às 17.33.25, Nirav Rabara escreveu:
>> dbus-monitor --session
>> Failed to open connection to session message bus: dbus-launch failed to
>> autolaunch D-Bus session: Autolaunch requested, but X11 support not
>>  compiled in.
>> Cannot continue.
>> Does x11 required for dbus-launch ???
> Required? No, it's jut recommended.
> X11 support in dbus-launch allows it to do bus autostarting. When an 
> application tries to use D-Bus and it isn't running yet, it starts and
> then 
> records the information on the X11 server.
> If you cannot or choose not to have X11 support enabled, you need to
> ensure 
> that the bus daemon is started before any applications that may use D-Bus.
> Do:
> 	eval `dbus-launch --auto-syntax`
>> full Senior is as below...
> What's a full senior?
>> I am using dbus in my custom board(arm). I have cross compile dbus and
>> install on my board.
>> I have configure dbus without x11.(I dont need x11 because i have been
>>  using qt/embedded, for communication of two qt application i m using
>>  dbus). I am able to launch system bus and session bus.
>> using eval 'dbus-launch --auto-syntax'
>> its show me the dbus session bus pid ...
> That's the right way. It starts a bus and prints the information.
> But note that it's backticks, not forward ticks (it's `, not ').
> -- 
> Thiago Macieira - thiago (AT) - thiago (AT)
>   Senior Product Manager - Nokia, Qt Development Frameworks
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