if $XDG_RUNTIME_DIR is unset, D-Bus calls don't work

[carlocastoldi]

Description

Mumble does not respond to certain D-Bus calls if $XDG_RUNTIME_DIR is unset, such as: startTalking(), stopTalking(), setSelfDeaf(), setSelfMuted(). It works with properties and some other calls: mute, deaf, isSelfMuted(), isSelfDeaf().

Steps to reproduce

1. open terminal
2. unset XDG_RUNTIME_DIR
3. mumble
4. open a DBus inspector and call net.sourceforge.mumble.mumble /isSelfDeaf(). Alternatively run in a new terminal mumble rpc starttalking

Mumble version

1.4.287

Mumble component

Client

OS

Linux

Reproducible?

Yes

Additional information

No response

Relevant log output

No response

Screenshots

No response

[Krzmbrzl]

Is this also fixed by #5961? 🤔

[carlocastoldi]

Is this also fixed by #5961? thinking

unfortunately, no :\

[Krzmbrzl]

Okay. Then I am pretty sure that this is a Qt limitation. We let Qt manage the DBus interface and therefore the requirement for XDG_RUNTIME_DIR is most likely theirs.

And according to https://askubuntu.com/questions/872792/what-is-xdg-runtime-dir this environment variable is supposed to be set in any case upon login and if it is not, that seems like a broader issue to me.

So to sum it up, I would close this as an upstream bug until proven otherwise.