When I remote connect from Windows 10 (using the default Windows RDP client) to my Linux Mint 20.1 remote machine (running xrdp), I would like to be able to play sound on the remote machine. However, in the sound settings I see that the output device is "Dummy Sound" and no audio will play. My Google-fu has mostly yielded solutions about using pulseaudio to redirect the sound back to the Windows client machine, but this is not exactly what I'm looking to do. The remote Linux Mint machine has its own speakers which I would like to use to hear the audio when I am remotely connected to this machine. Has anyone ever experienced this issue and found a workaround?
Many major distributions grant access to sound devices by default for local login sessions only.
On Debian/Ubuntu there is a standard user group
audio which allows its members the use of audio devices at all situations: I would expect Mint to have it too.
sudo usermod -a -G audio $(whoami) to add your user account to the group, and then you should be allowed to use the Linux system's sound devices even on remote sessions, cron jobs, or whatever.
Remember that you must log out your existing session and login again for the group membership change to take effect within the session.