Krdytkyu

I am running xrdp on my Ubuntu 18.04 computer.
I got 3 users. Two is working well. They can connect from Windows 10 rdp without any problem. But the last one does fail with a "Connection problem, giving up" message. And it is that user I use myself.

I have spend a lot of time researching and looking at log-files without any luck. I did remove and install xrdp again - no change.

I might have done something to corrupt the settings for this user. It did work for some time. If I only could somehow reset the user.

The user is not logged on locally. I use gnome desktop. From inxi for one of the functioning users i got this info:

Desktop: Gnome 3.28.2 Distro: Ubuntu 18.04.1 LTS
Display Server: X.Org 1.19.6

EDIT

I compared an OK user with the malfunctioning user by looking at /var/log/xrdp.log. For the OK user, the log continues after:

 [DEBUG] xrdp_wm_log_msg: started connecting

while the other just gets a bunch of:

 [DEBUG] Closed socket 17 (AF_UNIX)

and after a while these lines appears:

 xrdp_wm_log_msg: connection problem, giving up

 xrdp_wm_log_msg: some problem

There are some differences in .xorgxrdp.10.log

Bad one:

  [ 22202.422] (II) Loading /usr/lib/x86_64-linux-gnu/nvidia/xorg/libglx.so

  [ 22202.425] (II) Module glx: vendor="NVIDIA Corporation"

  [ 22202.425]    compiled for 4.0.2, module version = 1.0.0

  [ 22202.425]    Module class: X.Org Server Extension

  [ 22202.425] (II) NVIDIA GLX Module  390.48  Wed Mar 21 23:42:56 PDT 2018

    ...

  [ 22202.428] (EE) Failed to initialize GLX extension (Compatible NVIDIA X driver not found)

Good one

[ 24242.838] (II) Loading /usr/lib/xorg/modules/extensions/libglx.so

[ 24242.839] (II) Module glx: vendor="X.Org Foundation"

[ 24242.839]    compiled for 1.19.6, module version = 1.0.0

[ 24242.839]    ABI class: X.Org Server Extension, version 10.0

...

[ 24242.843] (II) AIGLX: Screen 0 is not DRI2 capable

[ 24242.843] (EE) AIGLX: reverting to software rendering

[ 24242.869] (II) IGLX: enabled GLX_MESA_copy_sub_buffer

[ 24242.870] (II) IGLX: Loaded and initialized swrast

[ 24242.870] (II) GLX: Initialized DRISWRAST GL provider for screen 0

Edit xrdp.ini added

cat /etc/xrdp/xrdp.ini

[Globals]

; xrdp.ini file version number

ini_version=1



; fork a new process for each incoming connection

fork=true

; tcp port to listen

port=3389

; 'port' above should be connected to with vsock instead of tcp

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

#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

; 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'

ssl_protocols=TLSv1, TLSv1.1, TLSv1.2

; 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=60



; 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



[X11rdp]

name=X11rdp

lib=libxup.so

username=ask

password=ask

ip=127.0.0.1

port=-1

xserverbpp=24

code=10



[X11rdp2]

name=Custom

lib=libvnc.so

username=askallan

password=ask

ip=127.0.0.1

port=ask5901



[Xvnc]

name=Xvnc

lib=libvnc.so

username=ask

password=ask

ip=127.0.0.1

port=-1

#xserverbpp=24

#delay_ms=2000



[console]

name=console

lib=libvnc.so

ip=127.0.0.1

port=5900

username=na

password=ask

#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



[sesman-any]

name=sesman-any

lib=libvnc.so

ip=ask

port=-1

username=ask

password=ask

#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

Your "good" user is picking up xorg driver instead of the nvidia driver, so you need to check the user-specific files such as ~/.xsession and anything related to xorg or graphics drivers.