X server could not be start

[2Venatooto]

NAME="Ubuntu"
VERSION_ID="22.04"
VERSION="22.04.5 LTS (Jammy Jellyfish)"

I am currently on Ubuntu 22.04 and have compiled and installed xrdp from source, version v0.10.3. After installation, when I try to connect via RDP from Windows, I receive the error "Can't create session for user ubuntu - X server could not be started." I would like to request assistance.Thanks

The logs from /var/log/xrdp-sesman.log are as follows:

[2025-05-08T11:45:18.207+0000] [INFO ] sesman_main_loop: sesman asked to terminate
[2025-05-08T11:45:18.220+0000] [INFO ] starting xrdp-sesman with pid 11905
[2025-05-08T11:45:18.225+0000] [INFO ] Sesman now listening on /var/run/xrdp/sesman.socket
[2025-05-08T11:45:22.163+0000] [INFO ] sesman_main_loop: sesman asked to terminate
[2025-05-08T11:45:22.179+0000] [INFO ] starting xrdp-sesman with pid 11915
[2025-05-08T11:45:22.183+0000] [INFO ] Sesman now listening on /var/run/xrdp/sesman.socket
[2025-05-08T11:45:26.583+0000] [INFO ] Socket 13: connection accepted from AF_UNIX
[2025-05-08T11:45:26.642+0000] [INFO ] Received system login request from xrdp for user: ubuntu IP: 10.130.240.42
[2025-05-08T11:45:26.709+0000] [INFO ] starting xrdp-sesexec with pid 11924
[2025-05-08T11:45:26.127+0000] [INFO ] TerminalServerUsers group tsusers doesn't exist. Access granted for ubuntu
[2025-05-08T11:45:26.130+0000] [INFO ] Access permitted for user: ubuntu
[2025-05-08T11:45:26.133+0000] [INFO ] Received sys login status for ubuntu : logged in
[2025-05-08T11:45:26.137+0000] [INFO ] Received request from xrdp to create a session for user ubuntu
[2025-05-08T11:45:26.140+0000] [INFO ] Found X server running at 6010
[2025-05-08T11:45:26.142+0000] [INFO ] Found X server running at /tmp/.X11-unix/X11
[2025-05-08T11:45:26.148+0000] [INFO ] PAM: Last login: Thu May 8 11:39:10 UTC 2025 from 10.130.240.42 on :12
[2025-05-08T11:45:26.213+0000] [INFO ] Starting X server on display 12: Xorg :12 -auth .Xauthority -config xrdp/xorg.conf -noreset -nolisten tcp -logfile .xorgxrdp.%s.log /usr/lib/xorg/Xorg
[2025-05-08T11:45:36.216+0000] [ERROR] waitforx: Unable to open display :12
[2025-05-08T11:45:36.221+0000] [ERROR] X server failed to start
[2025-05-08T11:45:36.225+0000] [INFO ] Session on display 12 has finished.
[2025-05-08T11:51:04.608+0000] [INFO ] Socket 13: connection accepted from AF_UNIX
[2025-05-08T11:51:04.614+0000] [INFO ] Received system login request from xrdp for user: ubuntu IP: 10.130.240.42
[2025-05-08T11:51:04.623+0000] [INFO ] starting xrdp-sesexec with pid 14105
[2025-05-08T11:51:04.684+0000] [INFO ] TerminalServerUsers group tsusers doesn't exist. Access granted for ubuntu
[2025-05-08T11:51:04.687+0000] [INFO ] Access permitted for user: ubuntu
[2025-05-08T11:51:04.690+0000] [INFO ] Received sys login status for ubuntu : logged in
[2025-05-08T11:51:04.694+0000] [INFO ] Received request from xrdp to create a session for user ubuntu
[2025-05-08T11:51:04.697+0000] [INFO ] Found X server running at 6010
[2025-05-08T11:51:04.702+0000] [INFO ] PAM: Last login: Thu May 8 11:45:26 UTC 2025 from 10.130.240.42 on :12
[2025-05-08T11:51:04.768+0000] [INFO ] Starting X server on display 11: Xorg :11 -auth .Xauthority -config xrdp/xorg.conf -noreset -nolisten tcp -logfile .xorgxrdp.%s.log /usr/lib/xorg/Xorg
[2025-05-08T11:51:14.771+0000] [ERROR] waitforx: Unable to open display :11
[2025-05-08T11:51:14.774+0000] [ERROR] X server failed to start
[2025-05-08T11:51:14.777+0000] [INFO ] Session on display 11 has finished.
[2025-05-08T11:53:53.871+0000] [INFO ] Socket 13: connection accepted from AF_UNIX
[2025-05-08T11:53:53.877+0000] [INFO ] Received system login request from xrdp for user: ubuntu IP: 10.130.240.42
[2025-05-08T11:53:53.884+0000] [INFO ] starting xrdp-sesexec with pid 18450
[2025-05-08T11:53:53.939+0000] [INFO ] TerminalServerUsers group tsusers doesn't exist. Access granted for ubuntu
[2025-05-08T11:53:53.942+0000] [INFO ] Access permitted for user: ubuntu
[2025-05-08T11:53:53.945+0000] [INFO ] Received sys login status for ubuntu : logged in
[2025-05-08T11:53:53.948+0000] [INFO ] Received request from xrdp to create a session for user ubuntu
[2025-05-08T11:53:53.951+0000] [INFO ] Found X server running at 6010
[2025-05-08T11:53:53.954+0000] [INFO ] Found X server running at /tmp/.X11-unix/X11
[2025-05-08T11:53:53.959+0000] [INFO ] PAM: Last login: Thu May 8 11:51:04 UTC 2025 from 10.130.240.42 on :11
[2025-05-08T11:53:54.364+0000] [INFO ] Starting X server on display 12: Xorg :12 -auth .Xauthority -config xrdp/xorg.conf -noreset -nolisten tcp -logfile .xorgxrdp.%s.log /usr/lib/xorg/Xorg
[2025-05-08T11:54:04.432+0000] [ERROR] waitforx: Unable to open display :12
[2025-05-08T11:54:04.471+0000] [ERROR] X server failed to start
[2025-05-08T11:54:04.502+0000] [INFO ] Session on display 12 has finished.

[matt335672]

Almost certainly #3299. Check /etc/xrdp/xrdp.ini and correct as necessary.

[2Venatooto]

[Xorg]
name=Xorg
lib=libxup.so
username=ask
password=ask
port=-1
code=20
; Frame capture interval (milliseconds)
h264_frame_interval=16
rfx_frame_interval=32
normal_frame_interval=40
param=/usr/bin/Xorg
param=-config
param=xrdp/xorg.conf
param=-noreset
param=-nolisten
param=tcp
param=-logfile
param=.xorgxrdp.%s.log

The above is the part of Xorg in my /etc/xrdp/xrdp.ini file. May I ask if this configuration is correct?

[2Venatooto]

And I tried to replace toparam=/usr/bin/Xorg with param=/usr/lib/xorg/Xorg won't work either.

[2Venatooto]

The following is my version：
`$ xrdp -v
xrdp 0.10.3
A Remote Desktop Protocol Server.
Copyright (C) 2004-2025 Jay Sorg, Neutrino Labs, and all contributors.
See https://github.com/neutrinolabs/xrdp for more information.

Configure options:

Compiled with OpenSSL 3.0.2 15 Mar 2022
$ Xorg -version

X.Org X Server 1.21.1.4
X Protocol Version 11, Revision 0
x86_64
xorg-server 2:21.1.4-2ubuntu1.7~22.04.14 (For technical support please see http://www.ubuntu.com/support)
Current version of pixman: 0.40.0
Before reporting problems, check http://wiki.x.org
to make sure that you have the latest version.
`

[2Venatooto]

Thanks for your help! My problem has been solved.

[matt335672]

Thanks for letting us know @2Venatooto