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I further decided to try commenting-out all lines with pam_systemd_home.so in /etc/pam.d/system-auth. No luck, even after rebooting.

@sshaikh

Thanks for the pointer. I commented-out this line in /etc/pam.d/system-auth:

-auth [success=2 default=ignore] pam_systemd_home.so

Then I rebooted and encountered the same situation. I then ran systemctl stop --user pulseaudio.socket, verified that pulseaudio wasn't running, followed by systemctl start --user pulseaudio.service (which should pull in the config from ~/.config/systemd/user/pulseaudio.service.d/xrdp.conf, or so says the output of systemctl cat --user pulseaudio.service), and I still hear nothing but see activity.

I have tried installing Remmina and FreeRDP on a Linux machine and performed my testing, with the same results (or lack thereof) that RoyalTSX 5.1.2 (which, as I mentioned previously, also uses FreeRDP) on my Mac (now 13.3.1) is experiencing.

I might be misremembering, but I recall having issues with sound because no user session was being created. I don't know what that means, but it lead me to this:

https://github.com/neutrinolabs/xrdp/issues/1684

and editing system-auth fixed a few things (which may have included sound).

@sshaikh

I am using sesman.ini, which if I'm not mistaken has the PULSE_SCRIPT line under [SessionVariables] configured right out of the box. pasystray does show that the appropriate modules (module-xrdp-source and module-xrdp-sink) are being loaded. pavucontrol shows "xrdp sink" as the Output Device, and I do see activity in the volume meters but hear nothing.

I now have the following in ~/.config/systemd/user/pulseaudio.service.d/xrdp.conf:

[Service]
Environment="PULSE_SCRIPT=/etc/xrdp/pulse/default.pa"

However I do not see any instructions in these comments for what to comment out of /etc/pam.d/system-auth.

@hexadecagram

Yeah, I have functioning sound. Have you tried the fixes in this comments? The two I needed were the systemd --user dropin and commenting out the line from /etc/pam.d/system-auth

Has anyone actually managed to get this module to work? As I said previously, I do see activity in the volume meter but hear nothing. My configs (xrdp, x11vnc, and pulseaudio) haven't strayed much from the default apart from making xrdp talk to x11vnc.

I am unable to run pulseaudio automatically on startup. I have to start pulseaudio manually on terminal for it to work.

Fyi, PULSE_SCRIPT is set to /etc/xrdp/pulse/default.pa on sesman.ini.

When running '$ pulseaudio' in terminal, these errors appeared even though pulseaudio works afterwards:

$ pulseaudio

N: [pulseaudio] module-xrdp-sink.c: Build library version 16.1.0

E: [xrdp-sink] module-xrdp-sink.c: sink_process_msg: not running

E: [xrdp-sink] module-xrdp-sink.c: close_send:

N: [pulseaudio] module-xrdp-source.c: Build library version 16.1.0

For some reason pulseaudio when started via systemd (as configured) does not seem to load module-xrdp-sink.so which results in a dummy sink being loaded instead (and no sound).

Stopping the systemd service and running pulseaudio -v at the terminal works - no env needs to be set as PULSE_SCRIPT is set already (as per sesman.ini).

I've also tried creating an xrdp dropin as per @Jat but to no avail.

Any hints?

EDIT: the correct location for dropins for user services is in:

/home/user/.config/systemd/user/pulseaudio.service.d

I cannot get this to work using a FreeRDP client (actually Royal TSX on macOS 12.5.1, which uses FreeRDP 5.1.2 as a plugin). If I connect to a Windows 2012 machine using the same client, I get sound. Also, xorgxrdp refuses to build for me. Is Xorg required for audio or should I be able to do this with Xvnc (or in my case, lightdm and x0vncserver)?

I have followed the troubleshooting instructions in the ArchWiki step-by-step, all the way down to running pulseaudio manually and while I see pavucontrol trying to tell me that there should be sound with bouncing volume meters, I hear nothing. I am not seeing any journal logs about systemd improperly starting PulseAudio.

Interestingly, I notice that when /etc/xrdp/pulse/defaults.pa is sourced, all my usual modules won't load. And if I try to force-load everything, there are problems. I will eventually need to be able to switch between xrdp audio and the machine's speakers, if possible.

If I set my state back to the way it was before attempting to setup the xrdp pulseaudio module, audio returns to the server's speakers.

@fow0ryl

https://www.freedesktop.org/wiki/Software/PulseAudio/FAQ/#whatenvironmentvariablesdoespulseaudiocareabout

if pulseaudio is started by desktop environment

/etc/xrdp/sesman.ini

[SessionVariables]
PULSE_SCRIPT=/etc/xrdp/pulse/default.pa

if pulseaudio is started by systemd

/etc/systemd/system/pulseaudio.service.d/xrdp.conf

[Service]
Environment="PULSE_SCRIPT=/etc/xrdp/pulse/default.pa"

if you want to start pulseaudio manually

PULSE_SCRIPT=/etc/xrdp/pulse/default.pa pulseaudio --daemonize=no