Rui CarmoI’ve been playing with Bazzite inside Proxmox, and that led me to figure out how to set up xrdp with glamor and pulseaudio on a new, headless Fedora Silverblue VM that I intend to use as my new ML sandbox.
Update: I’ve since learned that there is a pipewire modeule for Xrdp in the works, so I will update the post once I’ve had a chance to test it.
Setting up xorgrdp-glamor was easy enough:
- Disable graphical login with
systemctl set-default multi-user.target - Install
xrdpandxorgxrdp-glamor - Comment out the
Xvncentry from/etc/xrdp/xrdp.inito forceXrdpuse. - Tell Proxmox to use a
VirGL GPUdisplay device so that the VM can use the Intel iGPU viavirtio1
But getting pulseaudio to work inside Silverblue is a bit of a pain because of rpm-ostree‘s immutable filesystem and the fact that there are no prebuilt pulseaudio-module-xrdp packages for Fedora.
So I cheated: I built pulseaudio-module-xrdp in a Fedora 39 container (where I could run mock without any issues) and set up an rpmbuild tree with the artifacts like so:
# tree rpmbuild
rpmbuild
├── BUILD
├── BUILDROOT
├── pulseaudio-module-xrdp-0.1
│ ├── load_pa_modules.sh
│ ├── module-xrdp-sink.la
│ ├── module-xrdp-sink.so
│ ├── module-xrdp-source.la
│ ├── module-xrdp-source.so
│ └── pulseaudio-xrdp.desktop
├── RPMS
├── SOURCES
│ └── pulseaudio-module-xrdp-0.1.tar.gz
├── SPECS
│ └── pulseaudio-module-xrdp.spec
└── SRPMS
Then I created the SOURCES tarball and wrote a minimal spec file:
Name: pulseaudio-module-xrdp
Version: 0.1
Release: 1%{?dist}
Requires: pulseaudio
Summary: xrdp sink / source pulseaudio modules
License: Apache-2.0
Group: Other
Url: https://github.com/neutrinolabs/pulseaudio-module-xrdp
Source0: %{name}-%{version}.tar.gz
Packager: Rui Carmo <me@localhost>
%description
xrdp implements Audio Output redirection using PulseAudio, which is a
sound system used on POSIX operating systems.
%install
rm -rf %buildroot
mkdir -p %buildroot%{_libdir}/pulseaudio/modules
cp *.so %buildroot%{_libdir}/pulseaudio/modules
mkdir -p %buildroot%{_sysconfdir}/xdg/autostart
cp *.desktop %buildroot%{_sysconfdir}/xdg/autostart
mkdir -p %buildroot%{_libexecdir}/pulseaudio-module-xrdp
cp *.sh %buildroot%{_libexecdir}/pulseaudio-module-xrdp
%prep
%setup -q
%clean
rm -rf $RPM_BUILD_ROOT
%files
%_libdir/pulseaudio/modules/*.so
%_sysconfdir/xdg/autostart/pulseaudio-xrdp.desktop
%_libexecdir/pulseaudio-module-xrdp/load_pa_modules.sh
%changelog
* Tue Jan 23 2024 Rui Carmo <me@localhost> - 0.0.1
- First version being packaged
Then I ran:
rpmbuild -bb ~/rpmbuild/SPECS/pulseaudio-module-xrdp.spec
…to build the RPM, copied it across, and proceeded to install it and swap out pipewire in a single transaction:
rpm-ostree override remove pipewire-pulseaudio --install pulseaudio ./pulseaudio-module-xrdp-0.1-1.fc39.x86_64.rpm
I suppose I should contribute this back to pulseaudio-module-xrdp, but I don’t have the time to get to grips with its Makefile and set up a proper build pipeline for it right now.
-
I can’t use the NVIDIA GPU I’ve passed through via
PCIbecause I’d have to rebuildglamorfrom scratch, and oneRPMis enough for a single evening, thank you very much. ↩︎