xrdp: Manjaro Linux - cannot connect to server - Closed socket 19 (AF_UNIX)

Hi, I try to connect to a local xrdp server running Majaro, KDE. All what I get is the xorg login screen, after login I only see a black box.

Here are the log and config files:

xrdp.log

[20200405-15:54:22] [DEBUG] Closed socket 11 (AF_INET 0.0.0.0:3389)
[20200405-15:54:22] [INFO ] address [0.0.0.0] port [3389] mode 1
[20200405-15:54:22] [INFO ] listening to port 3389 on 0.0.0.0
[20200405-15:54:22] [INFO ] xrdp_listen_pp done
[20200405-15:54:22] [DEBUG] Closed socket 7 (AF_INET 0.0.0.0:3389)
[20200405-15:54:23] [INFO ] address [0.0.0.0] port [3389] mode 1
[20200405-15:54:23] [INFO ] listening to port 3389 on 0.0.0.0
[20200405-15:54:23] [INFO ] xrdp_listen_pp done
[20200405-15:54:23] [DEBUG] Closed socket 7 (AF_INET 0.0.0.0:3389)
[20200405-15:54:25] [INFO ] starting xrdp with pid 1886
[20200405-15:54:25] [INFO ] address [0.0.0.0] port [3389] mode 1
[20200405-15:54:25] [INFO ] listening to port 3389 on 0.0.0.0
[20200405-15:54:25] [INFO ] xrdp_listen_pp done
[20200405-15:54:31] [INFO ] Socket 12: AF_INET connection received from 192.168.1.40 port 58238
[20200405-15:54:31] [DEBUG] Closed socket 12 (AF_INET 192.168.1.30:3389)
[20200405-15:54:31] [DEBUG] Closed socket 11 (AF_INET 0.0.0.0:3389)
[20200405-15:54:31] [INFO ] Using default X.509 certificate: /etc/xrdp/cert.pem
[20200405-15:54:31] [INFO ] Using default X.509 key file: /etc/xrdp/key.pem
[20200405-15:54:31] [DEBUG] TLSv1.3 enabled
[20200405-15:54:31] [DEBUG] TLSv1.2 enabled
[20200405-15:54:31] [DEBUG] Security layer: requested 3, selected 1
[20200405-15:54:31] [INFO ] connected client computer name: thorsten-pc
[20200405-15:54:31] [INFO ] adding channel item name cliprdr chan_id 1004 flags 0x0000a0c0
[20200405-15:54:31] [INFO ] adding channel item name rdpsnd chan_id 1005 flags 0x000000c0
[20200405-15:54:31] [INFO ] adding channel item name snddbg chan_id 1006 flags 0x000000c0
[20200405-15:54:31] [INFO ] adding channel item name rdpdr chan_id 1007 flags 0x00008080
[20200405-15:54:31] [INFO ] adding channel item name drdynvc chan_id 1008 flags 0x000000c0
[20200405-15:54:31] [INFO ] TLS connection established from 192.168.1.40 port 58238: TLSv1.3 with cipher TLS_AES_256_GCM_SHA384
[20200405-15:54:31] [DEBUG] xrdp_00000762_wm_login_mode_event_00000001
[20200405-15:54:31] [INFO ] Loading keymap file /etc/xrdp/km-00000407.ini
[20200405-15:54:31] [WARN ] local keymap file for 0x00000407 found and doesn't match built in keymap, using local keymap file
[20200405-15:54:31] [DEBUG] xrdp_wm_log_msg: connecting to sesman ip 127.0.0.1 port 3350
[20200405-15:54:31] [INFO ] xrdp_wm_log_msg: sesman connect ok
[20200405-15:54:31] [DEBUG] xrdp_wm_log_msg: sending login info to session manager, please wait...
[20200405-15:54:31] [DEBUG] return value from xrdp_mm_connect 0
[20200405-15:54:31] [INFO ] xrdp_wm_log_msg: login successful for display 20
[20200405-15:54:31] [DEBUG] xrdp_wm_log_msg: started connecting
[20200405-15:54:35] [DEBUG] Closed socket 19 (AF_UNIX)
[20200405-15:54:38] [DEBUG] Closed socket 19 (AF_UNIX)
[20200405-15:54:42] [DEBUG] Closed socket 19 (AF_UNIX)
[20200405-15:54:45] [DEBUG] Closed socket 19 (AF_UNIX)
[20200405-15:54:49] [DEBUG] Closed socket 19 (AF_UNIX)
[20200405-15:54:52] [DEBUG] Closed socket 19 (AF_UNIX)
[20200405-15:54:56] [DEBUG] Closed socket 19 (AF_UNIX)
[20200405-15:54:59] [DEBUG] Closed socket 19 (AF_UNIX)
[20200405-15:55:03] [DEBUG] Closed socket 19 (AF_UNIX)
[20200405-15:55:06] [DEBUG] Closed socket 19 (AF_UNIX)
[20200405-15:55:10] [DEBUG] Closed socket 19 (AF_UNIX)
[20200405-15:55:13] [DEBUG] Closed socket 19 (AF_UNIX)

xrdp-sesman.log

[20200405-15:54:22] [INFO ] shutting down sesman 1
[20200405-15:54:22] [DEBUG] Closed socket 7 (AF_INET 127.0.0.1:3350)
[20200405-15:54:22] [DEBUG] libscp initialized
[20200405-15:54:22] [DEBUG] Testing if xrdp-sesman can listen on 127.0.0.1 port 3350.
[20200405-15:54:22] [DEBUG] Closed socket 5 (AF_INET 127.0.0.1:3350)
[20200405-15:54:22] [INFO ] starting xrdp-sesman with pid 1869
[20200405-15:54:22] [INFO ] listening to port 3350 on 127.0.0.1
[20200405-15:54:23] [INFO ] shutting down sesman 1
[20200405-15:54:23] [INFO ] shutting down sesman 1
[20200405-15:54:23] [DEBUG] Closed socket 7 (AF_INET 127.0.0.1:3350)
[20200405-15:54:23] [DEBUG] libscp initialized
[20200405-15:54:23] [DEBUG] Testing if xrdp-sesman can listen on 127.0.0.1 port 3350.
[20200405-15:54:23] [DEBUG] Closed socket 5 (AF_INET 127.0.0.1:3350)
[20200405-15:54:23] [INFO ] starting xrdp-sesman with pid 1880
[20200405-15:54:23] [INFO ] listening to port 3350 on 127.0.0.1
[20200405-15:54:31] [INFO ] A connection received from 127.0.0.1 port 51700
[20200405-15:54:31] [INFO ] ++ created session (access granted): username thorsten, ip 192.168.1.40:58238 - socket: 12
[20200405-15:54:31] [INFO ] starting Xorg session...
[20200405-15:54:31] [DEBUG] Closed socket 9 (AF_INET 0.0.0.0:5920)
[20200405-15:54:31] [DEBUG] Closed socket 9 (AF_INET 0.0.0.0:6020)
[20200405-15:54:31] [DEBUG] Closed socket 9 (AF_INET 0.0.0.0:6220)
[20200405-15:54:31] [DEBUG] Closed socket 8 (AF_INET 127.0.0.1:3350)
[20200405-15:54:31] [INFO ] calling auth_start_session from pid 1891
[20200405-15:54:31] [DEBUG] Closed socket 7 (AF_INET 127.0.0.1:3350)
[20200405-15:54:31] [DEBUG] Closed socket 8 (AF_INET 127.0.0.1:3350)
[20200405-15:54:31] [INFO ] /usr/lib/xorg-server/Xorg :20 -auth .Xauthority -config xrdp/xorg.conf -noreset -nolisten tcp -logfile .xorgxrdp.%s.log  
[20200405-15:54:31] [CORE ] error starting X server - user thorsten - pid 1893
[20200405-15:54:31] [DEBUG] errno: 2, description: No such file or directory
[20200405-15:54:31] [DEBUG] execve parameter list size: 12
[20200405-15:54:31] [DEBUG]         argv[0] = /usr/lib/xorg-server/Xorg
[20200405-15:54:31] [DEBUG]         argv[1] = :20
[20200405-15:54:31] [DEBUG]         argv[2] = -auth
[20200405-15:54:31] [DEBUG]         argv[3] = .Xauthority
[20200405-15:54:31] [DEBUG]         argv[4] = -config
[20200405-15:54:31] [DEBUG]         argv[5] = xrdp/xorg.conf
[20200405-15:54:31] [DEBUG]         argv[6] = -noreset
[20200405-15:54:31] [DEBUG]         argv[7] = -nolisten
[20200405-15:54:31] [DEBUG]         argv[8] = tcp
[20200405-15:54:31] [DEBUG]         argv[9] = -logfile
[20200405-15:54:31] [DEBUG]         argv[10] = .xorgxrdp.%s.log
[20200405-15:54:31] [DEBUG]         argv[11] = (null)
[20200405-15:54:41] [ERROR] X server for display 20 startup timeout
[20200405-15:54:41] [CORE ] waiting for window manager (pid 1892) to exit
[20200405-15:54:41] [ERROR] X server for display 20 startup timeout
[20200405-15:54:41] [ERROR] another Xserver might already be active on display 20 - see log
[20200405-15:54:41] [DEBUG] aborting connection...
[20200405-15:54:41] [CORE ] window manager (pid 1892) did exit, cleaning up session
[20200405-15:54:41] [INFO ] calling auth_stop_session and auth_end from pid 1891
[20200405-15:54:41] [DEBUG] cleanup_sockets:
[20200405-15:54:41] [DEBUG] cleanup_sockets: deleting /tmp/.xrdp/xrdp_chansrv_socket_20
[20200405-15:54:41] [DEBUG] cleanup_sockets: deleting /tmp/.xrdp/xrdpapi_20
[20200405-15:54:41] [INFO ] ++ terminated session:  username thorsten, display :20.0, session_pid 1891, ip 192.168.1.40:58238 - socket: 12

sesman.ini

ListenAddress=127.0.0.1
ListenPort=3350
EnableUserWindowManager=true
; Give in relative path to user's home directory
UserWindowManager=startwm.sh
; Give in full path or relative path to /etc/xrdp
DefaultWindowManager=startwm.sh
; Give in full path or relative path to /etc/xrdp
ReconnectScript=reconnectwm.sh

[Security]
AllowRootLogin=true
MaxLoginRetry=4
TerminalServerUsers=tsusers
TerminalServerAdmins=tsadmins
; When AlwaysGroupCheck=false access will be permitted
; if the group TerminalServerUsers is not defined.
AlwaysGroupCheck=false
; When RestrictOutboundClipboard=true clipboard from the
; server is not pushed to the client.
RestrictOutboundClipboard=false

[Sessions]
;; X11DisplayOffset - x11 display number offset
; Type: integer
; Default: 10
X11DisplayOffset=20

;; MaxSessions - maximum number of connections to an xrdp server
; Type: integer
; Default: 0
MaxSessions=50

;; KillDisconnected - kill disconnected sessions
; Type: boolean
; Default: false
; if 1, true, or yes, kill session after 60 seconds
KillDisconnected=false

;; DisconnectedTimeLimit - when to kill idle sessions
; Type: integer
; Default: 0
; if not zero, the seconds before a disconnected session is killed
; min 60 seconds
DisconnectedTimeLimit=0

;; IdleTimeLimit (specify in second) - wait before disconnect idle sessions
; Type: integer
; Default: 0
; Set to 0 to disable idle disconnection.
IdleTimeLimit=0

;; Policy - session allocation policy
; Type: enum [ "Default" | "UBD" | "UBI" | "UBC" | "UBDI" | "UBDC" ]
; Default: Xrdp:<User,BitPerPixel> and Xvnc:<User,BitPerPixel,DisplaySize>
; "UBD" session per <User,BitPerPixel,DisplaySize>
; "UBI" session per <User,BitPerPixel,IPAddr>
; "UBC" session per <User,BitPerPixel,Connection>
; "UBDI" session per <User,BitPerPixel,DisplaySize,IPAddr>
; "UBDC" session per <User,BitPerPixel,DisplaySize,Connection>
Policy=Default

[Logging]
LogFile=xrdp-sesman.log
LogLevel=DEBUG
EnableSyslog=1
SyslogLevel=DEBUG

;
; Session definitions - startup command-line parameters for each session type
;

[Xorg]
; Specify the path of non-suid Xorg executable. It might differ depending
; on your distribution and version. The typical path is shown as follows:
;
; Fedora 26 or later    :  param=/usr/libexec/Xorg
; Debian 9 or later     :  param=/usr/lib/xorg/Xorg
; Ubuntu 16.04 or later :  param=/usr/lib/xorg/Xorg
; Arch Linux            :  param=/usr/lib/xorg-server/Xorg
; CentOS 7              :  param=/usr/bin/Xorg or param=Xorg
;
param=/usr/lib/xorg-server/Xorg
; Leave the rest paramaters as-is unless you understand what will happen.
param=-config
param=xrdp/xorg.conf
param=-noreset
param=-nolisten
param=tcp
param=-logfile
param=.xorgxrdp.%s.log

[Xvnc]
param=Xvnc
param=-bs
param=-nolisten
param=tcp
param=-localhost
param=-dpi
param=96

[Chansrv]
; drive redirection, defaults to xrdp_client if not set
FuseMountName=thinclient_drives
; this value allows only the user to acess their own mapped drives.
; Make this more permissive (e.g. 022) if required.
FileUmask=077

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

xrdp.ini

[Globals]
; xrdp.ini file version number
ini_version=1

; fork a new process for each incoming connection
fork=true

; ports to listen on, number alone means listen on all interfaces
; 0.0.0.0 or :: if ipv6 is configured
; space between multiple occurrences
;
; Examples:
;   port=3389
;   port=unix://./tmp/xrdp.socket
;   port=tcp://.:3389                           127.0.0.1:3389
;   port=tcp://:3389                            *:3389
;   port=tcp://<any ipv4 format addr>:3389      192.168.1.1:3389
;   port=tcp6://.:3389                          ::1:3389
;   port=tcp6://:3389                           *:3389
;   port=tcp6://{<any ipv6 format addr>}:3389   {FC00:0:0:0:0:0:0:1}:3389
;   port=vsock://<cid>:<port>
port=3389

; 'port' above should be connected to with vsock instead of tcp
; use this only with number alone in port above
; prefer use vsock://<cid>:<port> above
use_vsock=false

; regulate if the listening socket use socket option tcp_nodelay
; no buffering will be performed in the TCP stack
tcp_nodelay=true

; regulate if the listening socket use socket option keepalive
; if the network connection disappear without close messages the connection will be closed
tcp_keepalive=true

; set tcp send/recv buffer (for experts)
#tcp_send_buffer_bytes=32768
#tcp_recv_buffer_bytes=32768

; security layer can be 'tls', 'rdp' or 'negotiate'
; for client compatible layer
security_layer=negotiate

; minimum security level allowed for client for classic RDP encryption
; use tls_ciphers to configure TLS encryption
; can be 'none', 'low', 'medium', 'high', 'fips'
crypt_level=high

; X.509 certificate and private key
; openssl req -x509 -newkey rsa:2048 -nodes -keyout key.pem -out cert.pem -days 365
certificate=
key_file=

; set SSL protocols
; can be comma separated list of 'SSLv3', 'TLSv1', 'TLSv1.1', 'TLSv1.2', 'TLSv1.3'
ssl_protocols=TLSv1.2, TLSv1.3
; set TLS cipher suites
#tls_ciphers=HIGH

; Section name to use for automatic login if the client sends username
; and password. If empty, the domain name sent by the client is used.
; If empty and no domain name is given, the first suitable section in
; this file will be used.
autorun=

allow_channels=true
allow_multimon=true
bitmap_cache=true
bitmap_compression=true
bulk_compression=true
#hidelogwindow=true
max_bpp=32
new_cursors=true
; fastpath - can be 'input', 'output', 'both', 'none'
use_fastpath=both
; when true, userid/password *must* be passed on cmd line
#require_credentials=true
; You can set the PAM error text in a gateway setup (MAX 256 chars)
#pamerrortxt=change your password according to policy at http://url

;
; colors used by windows in RGB format
;
blue=009cb5
grey=dedede
#black=000000
#dark_grey=808080
#blue=08246b
#dark_blue=08246b
#white=ffffff
#red=ff0000
#green=00ff00
#background=626c72

;
; configure login screen
;

; Login Screen Window Title
#ls_title=My Login Title

; top level window background color in RGB format
ls_top_window_bg_color=009cb5

; width and height of login screen
ls_width=350
ls_height=430

; login screen background color in RGB format
ls_bg_color=dedede

; optional background image filename (bmp format).
#ls_background_image=

; logo
; full path to bmp-file or file in shared folder
ls_logo_filename=
ls_logo_x_pos=55
ls_logo_y_pos=50

; for positioning labels such as username, password etc
ls_label_x_pos=30
ls_label_width=65

; for positioning text and combo boxes next to above labels
ls_input_x_pos=110
ls_input_width=210

; y pos for first label and combo box
ls_input_y_pos=220

; OK button
ls_btn_ok_x_pos=142
ls_btn_ok_y_pos=370
ls_btn_ok_width=85
ls_btn_ok_height=30

; Cancel button
ls_btn_cancel_x_pos=237
ls_btn_cancel_y_pos=370
ls_btn_cancel_width=85
ls_btn_cancel_height=30

[Logging]
LogFile=xrdp.log
LogLevel=DEBUG
EnableSyslog=true
SyslogLevel=DEBUG
; LogLevel and SysLogLevel could by any of: core, error, warning, info or debug

[Channels]
; Channel names not listed here will be blocked by XRDP.
; You can block any channel by setting its value to false.
; IMPORTANT! All channels are not supported in all use
; cases even if you set all values to true.
; You can override these settings on each session type
; These settings are only used if allow_channels=true
rdpdr=true
rdpsnd=true
drdynvc=true
cliprdr=true
rail=true
xrdpvr=true
tcutils=true

; for debugging xrdp, in section xrdp1, change port=-1 to this:
#port=/tmp/.xrdp/xrdp_display_10

; for debugging xrdp, add following line to section xrdp1
#chansrvport=/tmp/.xrdp/xrdp_chansrv_socket_7210


;
; Session types
;

; Some session types such as Xorg, X11rdp and Xvnc start a display server.
; Startup command-line parameters for the display server are configured
; in sesman.ini. See and configure also sesman.ini.
[Xorg]
name=Xorg
lib=libxup.so
username=ask
password=ask
ip=127.0.0.1
port=-1
code=20

[Xvnc]
name=Xvnc
lib=libvnc.so
username=ask
password=ask
ip=127.0.0.1
port=-1
#xserverbpp=24
#delay_ms=2000

[vnc-any]
name=vnc-any
lib=libvnc.so
ip=ask
port=ask5900
username=na
password=ask
#pamusername=asksame
#pampassword=asksame
#pamsessionmng=127.0.0.1
#delay_ms=2000

[neutrinordp-any]
name=neutrinordp-any
lib=libxrdpneutrinordp.so
ip=ask
port=ask3389
username=ask
password=ask

; You can override the common channel settings for each session type
#channel.rdpdr=true
#channel.rdpsnd=true
#channel.drdynvc=true
#channel.cliprdr=true
#channel.rail=true
#channel.xrdpvr=true

startwm.sh

#!/usr/bin/env bash
#
# This script is an example. You might need to edit this script
# depending on your distro if it doesn't work for you.
#
# Uncomment the following line for debug:
# exec xterm


# Execution sequence for interactive login shell - pseudocode
#
# IF /etc/profile is readable THEN
#     execute ~/.bash_profile
# END IF
# IF ~/.bash_profile is readable THEN
#     execute ~/.bash_profile
# ELSE
#     IF ~/.bash_login is readable THEN
#         execute ~/.bash_login
#     ELSE
#         IF ~/.profile is readable THEN
#             execute ~/.profile
#         END IF
#     END IF
# END IF
pre_start()
{
  if [ -r /etc/profile ]; then
    . /etc/profile
  fi
  if [ -r ~/.bash_profile ]; then
    . ~/.bash_profile
  else
    if [ -r ~/.bash_login ]; then
      . ~/.bash_login
    else
      if [ -r ~/.profile ]; then
        . ~/.profile
      fi
    fi
  fi
  return 0
}

# When loging out from the interactive shell, the execution sequence is:
#
# IF ~/.bash_logout exists THEN
#     execute ~/.bash_logout
# END IF
post_start()
{
  if [ -r ~/.bash_logout ]; then
    . ~/.bash_logout
  fi
  return 0
}

#start the window manager
wm_start()
{
#  if [ -r /etc/locale.conf ]; then
#    . /etc/locale.conf
#    export LANG LANGUAGE
#  fi

  # arch user
  if [ -r ~/.xinitrc ]; then
    . ~/.xinitrc
    exit 0
  fi
  # arch
#  if [ -r /etc/X11/xinit/xinitrc ]; then
#    . /etc/X11/xinit/xinitrc
#    exit 0
#  fi

  # debian
#  if [ -r /etc/X11/Xsession ]; then
#    pre_start
#    . /etc/X11/Xsession
#    post_start
#    exit 0
#  fi

  # el
#  if [ -r /etc/X11/xinit/Xsession ]; then
#    pre_start
#    . /etc/X11/xinit/Xsession
#    post_start
#    exit 0
#  fi

  # suse
#  if [ -r /etc/X11/xdm/Xsession ]; then
    # since the following script run a user login shell,
    # do not execute the pseudo login shell scripts
#    . /etc/X11/xdm/Xsession
#    exit 0
#  fi

  pre_start
  xterm
  post_start
}

#. /etc/environment
#export PATH=$PATH
#export LANG=$LANG

# change PATH to be what your environment needs usually what is in
# /etc/environment
#PATH="/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games"
#export PATH=$PATH

# for PATH and LANG from /etc/environment
# pam will auto process the environment file if /etc/pam.d/xrdp-sesman
# includes
# auth       required     pam_env.so readenv=1

wm_start

exit 1

I postet this in the Manjro forums before 2 weeks but get no response. I hope you can help me find out whats wrong.

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