Connection Drops Soon After Connected

ThinLinc
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1

As soon as I initiate the connection through the client, the window closes and the message appears saying that “the connection was closed in less than 10 seconds”.

Looking at the forums I saw that I could try to find out what was wrong in the logs in /var/opt/thinlinc/sessions/<session>/last/xinit.log. I really don’t know if I found the error but to me it looks like this:

W: [pulseaudio] main.c: Couldn't canonicalize binary path, cannot self execute.

If this is indeed the line that indicates the error, is it because I don’t have pulseaudio installed but rather pipewire-pulse instead? How to make the connection using pipewire-pulse?

Full log:

xauth:  file /var/opt/thinlinc/sessions/rhuan/10/Xauthority does not exist
tl-xinit: Waiting for Xserver to accept connections...

Xvnc ThinLinc release 4.15.0 build 3358 - built Aug 21 2023 07:22:38
Copyright (C) 1999-2023 TigerVNC Team and many others (see README.rst)
See https://www.tigervnc.org for information on TigerVNC.
Underlying X server release 12013000

(II) Initializing extension VNC-EXTENSION

Fri Nov 24 17:47:52 2023
 vncext:      VNC extension running!
 vncext:      Listening for VNC connections on local interface(s), port 5910
 vncext:      created VNC server for screen 0
(II) Initializing extension Generic Event Extension
(II) Initializing extension SHAPE
(II) Initializing extension MIT-SHM
(II) Initializing extension XInputExtension
(II) Initializing extension XTEST
(II) Initializing extension BIG-REQUESTS
(II) Initializing extension SYNC
(II) Initializing extension XKEYBOARD
(II) Initializing extension XC-MISC
(II) Initializing extension XFIXES
(II) Initializing extension RENDER
(II) Initializing extension RANDR
(II) Initializing extension COMPOSITE
(II) Initializing extension DAMAGE
(II) Initializing extension MIT-SCREEN-SAVER
(II) Initializing extension DOUBLE-BUFFER
(II) Initializing extension RECORD
(II) Initializing extension DPMS
(II) Initializing extension Present
(II) Initializing extension DRI3
(II) Initializing extension X-Resource
(II) Initializing extension XVideo
(II) Initializing extension XVideo-MotionCompensation
(II) Initializing extension GLX
(II) IGLX: Loaded and initialized swrast
(II) GLX: Initialized DRISWRAST GL provider for screen 0
The XKEYBOARD keymap compiler (xkbcomp) reports:
> Warning:          Unsupported high keycode 372 for name <I372> ignored
>                   X11 cannot support keycodes above 255.
>                   This warning only shows for the first high keycode.
Errors from xkbcomp are not fatal to the X server
 Connections: accepted: 127.0.0.1::37206
 VNCSConnST:  closing 127.0.0.1::37206: Clean disconnection
 EncodeManager: Framebuffer updates: 0
 EncodeManager:   Total: 0 rects, 0 pixels
 EncodeManager:          0 B (1:-nan ratio)
 Connections: closed: 127.0.0.1::37206
 ComparingUpdateTracker: 0 pixels in / 0 pixels out
 ComparingUpdateTracker: (1:-nan ratio)
tl-xinit: Xserver ready for clients.
--- System information ---
ThinLinc 4.15.0
Linux reaper 6.6.2-arch1-1 #1 SMP PREEMPT_DYNAMIC Mon, 20 Nov 2023 23:18:21 +0000 x86_64 GNU/Linux
Arch Linux \r (\l)

--- End system information ---
Fontconfig warning: "/usr/share/fontconfig/conf.avail/05-reset-dirs-sample.conf", line 6: unknown element "reset-dirs"
Fontconfig warning: "/usr/share/fontconfig/conf.avail/05-reset-dirs-sample.conf", line 6: unknown element "reset-dirs"

Fri Nov 24 17:47:53 2023
 Connections: accepted: 127.0.0.1::37218
 SConnection: Client needs protocol version 3.8
 SConnection: Client requests security type VncAuth(2)
 VNCSConnST:  Replacing existing connection
 VNCSConnST:  Server default pixel format depth 24 (32bpp) little-endian rgb888
Running /opt/thinlinc/etc/xstartup.d/01-tl-kinit.sh (Obtaining Kerberos ticket)
kinit: Client 'rhuan@ATHENA.MIT.EDU' not found in Kerberos database while getting initial credentials
Running /opt/thinlinc/etc/xstartup.d/02-tl-dbus-launch.sh (Starting session D-Bus server)
Existing session D-Bus server found.
Setting initial D-Bus and systemd environment...
Running /opt/thinlinc/etc/xstartup.d/03-tl-x11-allow-localuser
localuser:rhuan being added to access control list
Running /opt/thinlinc/etc/xstartup.d/11-tl-set-title (Setting client window title)
Running /opt/thinlinc/etc/xstartup.d/12-tl-default-keyboard (Configuring default keyboard layout)
Setting default keyboard layout to "us"
The XKEYBOARD keymap compiler (xkbcomp) reports:
> Warning:          Unsupported high keycode 372 for name <I372> ignored
>                   X11 cannot support keycodes above 255.
>                   This warning only shows for the first high keycode.
Errors from xkbcomp are not fatal to the X server
Running /opt/thinlinc/etc/xstartup.d/15-tl-shadow-notify (Enabling notifications when the session is shadowed)
Running /opt/thinlinc/etc/xstartup.d/20-tl-select-profile.sh (Choosing a profile)
Running /opt/thinlinc/etc/xstartup.d/30-tl-xdg-user-dirs (Translating standard folders)
Running /opt/thinlinc/etc/xstartup.d/40-tl-mount-localdrives (Mounting local drives)
Running /opt/thinlinc/etc/xstartup.d/41-tl-lp-redir-launch (Setting up printer port redirection)
Running /opt/thinlinc/etc/xstartup.d/43-tl-pulseaudio-launch.sh (Starting session PulseAudio server)
W: [pulseaudio] main.c: Couldn't canonicalize binary path, cannot self execute.
Session PulseAudio server started. Redirecting applications...
Running /opt/thinlinc/etc/xstartup.d/50-tl-wait-smartcard (Waiting for smart card connection)
Client has no smartcard capability
Stopping initial window manager...
Done.
Executing profile: gnome
Using XDG session: gnome
Updating D-Bus and systemd environment...
Executing XDG session command: /usr/bin/gnome-session
Profile command exited with exit code 1
Running /opt/thinlinc/etc/xlogout.d/tl-kdestroy.sh
kdestroy: No credentials cache found while destroying cache
Running /opt/thinlinc/etc/xlogout.d/tl-umount-localdrives
tl-xinit: client terminated and returned 0
tl-xinit: Terminating X server...
tl-while-x11: lost Xserver connection, terminating child 51640 ...
X I/O error
tl-while-x11: lost Xserver connection, terminating child 51629 ...

Fri Nov 24 17:48:02 2023
 VNCSConnST:  closing 127.0.0.1::37218: Server shutdown
 EncodeManager: Framebuffer updates: 312
 EncodeManager:   Tight:
 EncodeManager:     Solid: 215 rects, 2.34912 Mpixels
 EncodeManager:            3.35938 KiB (1:2732.29 ratio)
 EncodeManager:     Bitmap RLE: 62 rects, 16.574 kpixels
 EncodeManager:                 1.88672 KiB (1:34.6998 ratio)
 EncodeManager:     Indexed RLE: 217 rects, 175.408 kpixels
 EncodeManager:                  27.6758 KiB (1:24.8495 ratio)
 EncodeManager:   Tight (JPEG):
 EncodeManager:     Full Colour: 465 rects, 1.67313 Mpixels
 EncodeManager:                  1.44706 MiB (1:4.41433 ratio)
 EncodeManager:   Total: 959 rects, 4.21423 Mpixels
 EncodeManager:          1.47921 MiB (1:10.8754 ratio)
 ComparingUpdateTracker: 8.93731 Mpixels in / 4.00949 Mpixels out
 ComparingUpdateTracker: (1:2.22904 ratio)
tl-xinit: Xserver terminated and returned 0
tl-xinit: deleting ../10.1700858786.ended
tl-xinit: Session terminated. Exiting.
2

Hello Rhuan, and welcome to the ThinLinc community!

That warning from PulseAudio is harmless and is unfortunately not the reason your session is dying.

The log unfortunately doesn’t give a clear message why things terminate, but it shows that your desktop environment (GNOME) starts and then stops again. There should hopefully be more details in a system log somewhere.

Please check sudo journalctl or journalctl --user and see if there is something around the time the session died.

A common issue is that this user is also logged in locally on the server. Unfortunately, modern systems only support a single graphical session at a time, so you need to log out locally before accessing things remotely using ThinLinc.

1 Like
3

Hello Cendio, thank you for the reception!

I don’t believe, really in fact the problem it was the users multi login lol. I created a user for test and voila, every works fine.