snaps not running in xrdp

[graylion]

xrdp version

0.9.17-2ubuntu2

Detailed xrdp version, build options

xrdp 0.9.17
  A Remote Desktop Protocol Server.
  Copyright (C) 2004-2020 Jay Sorg, Neutrino Labs, and all contributors.
  See https://github.com/neutrinolabs/xrdp for more information.

  Configure options:
      --enable-ipv6
      --enable-jpeg
      --enable-fuse
      --enable-rfxcodec
      --enable-opus
      --enable-painter
      --enable-vsock
      --build=x86_64-linux-gnu
      --prefix=/usr
      --includedir=${prefix}/include
      --mandir=${prefix}/share/man
      --infodir=${prefix}/share/info
      --sysconfdir=/etc
      --localstatedir=/var
      --disable-silent-rules
      --libdir=${prefix}/lib/x86_64-linux-gnu
      --libexecdir=${prefix}/lib/x86_64-linux-gnu
      --disable-maintainer-mode
      --disable-dependency-tracking
      --with-socketdir=/run/xrdp/sockdir
      build_alias=x86_64-linux-gnu
      CFLAGS=-g -O2 -ffile-prefix-map=/build/xrdp-asBei3/xrdp-0.9.17=. -flto=auto -ffat-lto-objects -flto=auto -ffat-lto-objects -fstack-protector-strong -Wformat -Werror=format-security 
      LDFLAGS=-Wl,-Bsymbolic-functions -flto=auto -ffat-lto-objects -flto=auto -Wl,-z,relro -Wl,-z,now -Wl,--as-needed
      CPPFLAGS=-Wdate-time -D_FORTIFY_SOURCE=2 -Wno-error=deprecated-declarations
      PKG_CONFIG_PATH=/build/xrdp-asBei3/xrdp-0.9.17/pkgconfig

  Compiled with OpenSSL 3.0.2 15 Mar 2022

Operating system & version

Mint 21.3

Installation method

git clone & make install

Which backend do you use?

No response

What desktop environment do you use?

Cinnamon

Environment xrdp running on

physical with AMD Fury 64

What's your client?

Microsoft RDP

Area(s) with issue?

Other

Steps to reproduce

I have installed NVIDIA GeForce NOW on the server. It works fine when using the machine directly, but launching it from XRDP gets me the following error

✔️ Expected Behavior

for geforce now to launch

❌ Actual Behavior

/user.slice/user-1001.slice/session-c3.scope is not a snap cgroup

Anything else?

This appears to be a common issue with snap applications in xrdp, see also https://bugs.launchpad.net/ubuntu/+source/snapd/+bug/1968908

[matt335672]

Most likely cause on your version of Ubuntu is #1684

A possible workaround is described in this post. The issue is fixed in the development branch, but we haven't released that yet.

[graylion]

Thanks for that. I tried compiling the workaround, but get an error. I logged an issue with it.

[matt335672]

@graylion - do you need any more input on this?

[matt335672]

For anyone still reading this, see also #3053. This affects the xdg-desktop-portal.service which I believe is also used by snap applications.