xrdp connection times out

[Thomas Schweikle]

With artful ardvark xrdp times out while trying to connect to a running xrdp-sessman. Since I colud not find x11rdp or xorgrdp somewhere on the system I'd assume these missing.

xrdp/xrdp-sessman tries to start x11rdp/xorgrdp and fails, because none of them is installed.
-> looks like it should only start Xorg but with drivers for xrdp as configured in /etc/X11/xrdp/xorg.conf (starting X with config /etc/X11/xrdp/xorg.conf).

Trying the same with Xvnc leads to Xvnc not being able to start xvnc-servers because the port requested is in use. The stated workaround, replacing vnc4server with tightvnc does not work.
-> could not connect to 5910 (or any other port 59xx).

ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: xrdp 0.9.1-9
ProcVersionSignature: Ubuntu 4.10.0-26.30-generic 4.10.17
Uname: Linux 4.10.0-26-generic x86_64
NonfreeKernelModules: zfs zunicode zavl zcommon znvpair
ApportVersion: 2.20.5-0ubuntu5
Architecture: amd64
Date: Tue Jul 11 09:50:05 2017
InstallationDate: Installed on 2014-02-10 (1246 days ago)
InstallationMedia: Xubuntu 13.10 "Saucy Salamander" - Release amd64 (20131016)
ProcEnviron:
 TERM=screen
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=de_DE.UTF-8
 SHELL=/bin/bash
SourcePackage: xrdp
UpgradeStatus: Upgraded to artful on 2017-06-12 (28 days ago)
modified.conffile..etc.xrdp.startwm.sh: [deleted]

[Kyle (kolinuxtech)]

This affects me exactly the same way as described by Thomas. This seems to match a problem in Debian Stretch that also leads to a timeout through the Xorg based session of xrdp....I mention this in case it helps to diagnose the issue. This is a fresh installation of Ubuntu 17.10.

Kernel in use: 4.13.0-21-generic x86_64

All other software is fully up-to-date as of January 2, 2018.

Unlike Thomas I am not using ZFS but instead XFS.