Virtual Desktop Help

Get Help
1

Hi,

I’m pretty new to OOD and trying to spin up a virtual desktop. I have the OOD server running (2402-login-001.domain.edu) and I am able to start the virtual desktop on the node ins039 but the screen is just black.

Here is my output.log file:

Setting VNC password...
Starting VNC server...
Killing Xvnc process ID 1490669
Xvnc process ID 1490669 already killed
Xvnc did not appear to shut down cleanly. Removing /tmp/.X11-unix/X1
Xvnc did not appear to shut down cleanly. Removing /tmp/.X1-lock

Desktop 'TurboVNC: ins039:1 (user)' started on display ins039:1

Log file is vnc.log
Successfully started VNC server on ins039:5901...
Script starting...
Starting websocket server...
Launching desktop 'xfce'...
cp: cannot stat '/etc/xdg/xfce4/panel/default.xml': No such file or directory
[websockify]: pid: 1491193 (proxying 10644 ==> localhost:5901)
[websockify]: log file: ./websockify.log
[websockify]: waiting ...
grep: ./websockify.log: No such file or directory
_IceTransmkdir: Owner of /tmp/.ICE-unix should be set to root
/usr/bin/iceauth:  creating new authority file /tmp/Ll1EF/ICEauthority

(xfwm4:1491236): xfwm4-WARNING **: 13:46:51.827: Unsupported GL renderer (llvmpipe (LLVM 16.0.6, 256 bits)).

(xfce4-session:1491215): xfce4-session-WARNING **: 13:46:51.833: Unable to launch "xfsettingsd": Failed to execute child process “xfsettingsd” (No such file or directory)

(xfce4-session:1491215): xfce4-session-WARNING **: 13:46:51.834: Unable to launch "xfce4-panel": Failed to execute child process “xfce4-panel” (No such file or directory)

(xfce4-session:1491215): xfce4-session-WARNING **: 13:46:51.835: Unable to launch "Thunar": Failed to execute child process “Thunar” (No such file or directory)

(xfce4-session:1491215): xfce4-session-WARNING **: 13:46:51.836: Unable to launch "xfdesktop": Failed to execute child process “xfdesktop” (No such file or directory)

(tracker-miner-fs-3:1491255): Tracker-WARNING **: 13:46:51.858: Unable to get XDG user directory path for special directory &DOCUMENTS. Ignoring this location.

(tracker-miner-fs-3:1491255): Tracker-WARNING **: 13:46:51.858: Unable to get XDG user directory path for special directory &MUSIC. Ignoring this location.

(tracker-miner-fs-3:1491255): Tracker-WARNING **: 13:46:51.858: Unable to get XDG user directory path for special directory &PICTURES. Ignoring this location.

(tracker-miner-fs-3:1491255): Tracker-WARNING **: 13:46:51.858: Unable to get XDG user directory path for special directory &VIDEOS. Ignoring this location.

(tracker-miner-fs-3:1491255): Tracker-WARNING **: 13:46:51.858: Unable to get XDG user directory path for special directory &DOWNLOAD. Ignoring this location.

(tracker-miner-fs-3:1491255): Tracker-WARNING **: 13:46:51.858: Unable to get XDG user directory path for special directory &DOCUMENTS. Ignoring this location.

(tracker-miner-fs-3:1491255): Tracker-WARNING **: 13:46:51.858: Unable to get XDG user directory path for special directory &MUSIC. Ignoring this location.

(tracker-miner-fs-3:1491255): Tracker-WARNING **: 13:46:51.858: Unable to get XDG user directory path for special directory &PICTURES. Ignoring this location.

(tracker-miner-fs-3:1491255): Tracker-WARNING **: 13:46:51.858: Unable to get XDG user directory path for special directory &VIDEOS. Ignoring this location.
[websockify]: started successfully (proxying 10644 ==> localhost:5901)
Scanning VNC log file for user authentications...
Generating connection YAML file...

My vnc.log file:

TurboVNC Server (Xvnc) 64-bit v3.1.90 (build 20250208)
Copyright (C) 1999-2025 The VirtualGL Project and many others (see README.md)
Visit http://www.TurboVNC.org for more information on TurboVNC

19/03/2025 13:46:50 Using security configuration file /etc/turbovncserver-security.conf
19/03/2025 13:46:50 Enabled security type 'tlsvnc'
19/03/2025 13:46:50 Enabled security type 'tlsotp'
19/03/2025 13:46:50 Enabled security type 'tlsplain'
19/03/2025 13:46:50 Enabled security type 'x509vnc'
19/03/2025 13:46:50 Enabled security type 'x509otp'
19/03/2025 13:46:50 Enabled security type 'x509plain'
19/03/2025 13:46:50 Enabled security type 'vnc'
19/03/2025 13:46:50 Enabled security type 'otp'
19/03/2025 13:46:50 Enabled security type 'unixlogin'
19/03/2025 13:46:50 Enabled security type 'plain'
_XSERVTransmkdir: Owner of /tmp/.X11-unix should be set to root
19/03/2025 13:46:50 Desktop name 'TurboVNC: ins039:1 (user)' (ins039:1)
19/03/2025 13:46:50 Protocol versions supported: 3.3, 3.7, 3.8, 3.7t, 3.8t
19/03/2025 13:46:50 Listening for VNC connections on TCP port 5901
19/03/2025 13:46:50   Interface 0.0.0.0
19/03/2025 13:46:50 Framebuffer: BGRX 8/8/8/8
19/03/2025 13:46:50 New desktop size: 1240 x 900
19/03/2025 13:46:50 New screen layout:
19/03/2025 13:46:50   0x00000040 (output 0x00000040): 1240x900+0+0
19/03/2025 13:46:50 Maximum clipboard transfer size: 1048576 bytes
19/03/2025 13:46:50 VNC extension running!

19/03/2025 13:47:02 [1] Got connection from 127.0.0.1 on port 37214
19/03/2025 13:47:03 [1] Normal socket connection
19/03/2025 13:47:03 [1] Using protocol version 3.8
19/03/2025 13:47:03 [1] Enabling TightVNC protocol extensions
19/03/2025 13:47:03 [1] Advertising Tight auth cap 'VENCRYPT'
19/03/2025 13:47:03 [1] Advertising Tight auth cap 'VNCAUTH_'
19/03/2025 13:47:03 [1] Advertising Tight auth cap 'ULGNAUTH'
19/03/2025 13:47:03 [1] Full-control authentication enabled
19/03/2025 13:47:03 Number of connected clients: 1
19/03/2025 13:47:03 [1] Pixel format:
19/03/2025 13:47:03 [1]   32 bpp, depth 24, little endian
19/03/2025 13:47:03 [1]   true colour: max r 255 g 255 b 255, shift r 0 g 8 b 16
19/03/2025 13:47:03 [1] Enabling CopyRect encoding
19/03/2025 13:47:03 [1] Using tight encoding
19/03/2025 13:47:03 [1] rfbProcessClientNormalMessage: ignoring unknown encoding -260 (fffffefc)
19/03/2025 13:47:03 [1] Using JPEG subsampling 1, Q41
19/03/2025 13:47:03 [1] Interframe comparison enabled
19/03/2025 13:47:03 [1] Enabling Desktop Size protocol extension
19/03/2025 13:47:03 [1] Enabling LastRect protocol extension
19/03/2025 13:47:03 [1] Enabling QEMU Extended Key Event protocol extension
19/03/2025 13:47:03 [1] Enabling Extended Desktop Size protocol extension
19/03/2025 13:47:03 [1] rfbProcessClientNormalMessage: ignoring unknown encoding -309 (fffffecb)
19/03/2025 13:47:03 [1] Enabling Fence protocol extension
19/03/2025 13:47:03 [1] Enabling Continuous Updates protocol extension
19/03/2025 13:47:03 [1] rfbProcessClientNormalMessage: ignoring unknown encoding -307 (fffffecd)
19/03/2025 13:47:03 [1] Enabling Extended Clipboard protocol extension
19/03/2025 13:47:03 [1] rfbProcessClientNormalMessage: ignoring unknown encoding 1464686180 (574d5664)
19/03/2025 13:47:03 [1] Enabling full-color cursor updates
19/03/2025 13:47:03 [1] Using Tight compression level 1
19/03/2025 13:47:03 [1] WARNING: Disabling QEMU Extended Key Event extension because neither LED state
19/03/2025 13:47:03 [1]   extension is supported by the client.
19/03/2025 13:47:03 Using 4 threads for Tight encoding
19/03/2025 13:47:03 [1] Client clipboard capabilities:
19/03/2025 13:47:03 [1] - Plain text (limit = 0 bytes)
19/03/2025 13:47:03 [1] Continuous updates enabled
19/03/2025 13:47:03 New desktop size: 1920 x 841
19/03/2025 13:47:03 [1] Interframe comparison disabled
19/03/2025 13:47:03 [1] Interframe comparison enabled
19/03/2025 13:47:03 New screen layout:
19/03/2025 13:47:03   0x00000000 (output 0x00000040): 1920x841+0+0
19/03/2025 13:47:03 [1] Continuous updates enabled
19/03/2025 13:47:03 [1] Continuous updates enabled
19/03/2025 13:47:03 [1] Continuous updates enabled
19/03/2025 13:47:50 New desktop size: 1121 x 841
19/03/2025 13:47:50 [1] Interframe comparison disabled
19/03/2025 13:47:50 [1] Interframe comparison enabled
19/03/2025 13:47:50 New screen layout:
19/03/2025 13:47:50   0x00000000 (output 0x00000040): 1121x841+0+0
19/03/2025 13:47:50 [1] Continuous updates enabled
19/03/2025 13:47:50 [1] Continuous updates enabled
19/03/2025 13:49:00 [1] Client gone
19/03/2025 13:49:00 [1] Statistics:
19/03/2025 13:49:00 [1]   key events received 0, pointer events 526
19/03/2025 13:49:00 [1]   framebuffer updates 11, rectangles 38, bytes 2956
19/03/2025 13:49:00 [1]     LastRect markers 6, bytes 72
19/03/2025 13:49:00 [1]     cursor shape updates 1, bytes 2388
19/03/2025 13:49:00 [1]     Tight rectangles 31, bytes 496
19/03/2025 13:49:00 [1]   raw equivalent 24.924000 Mbytes, compression ratio 50250.000000
19/03/2025 13:49:00 [1] Interframe comparison disabled
19/03/2025 13:49:00 Number of connected clients: 0

19/03/2025 13:49:00 [2] Got connection from 127.0.0.1 on port 33050
19/03/2025 13:49:00 [2] Normal socket connection
19/03/2025 13:49:00 [2] Using protocol version 3.8
19/03/2025 13:49:00 [2] Enabling TightVNC protocol extensions
19/03/2025 13:49:00 [2] Advertising Tight auth cap 'VENCRYPT'
19/03/2025 13:49:00 [2] Advertising Tight auth cap 'VNCAUTH_'
19/03/2025 13:49:00 [2] Advertising Tight auth cap 'ULGNAUTH'
19/03/2025 13:49:00 [2] Full-control authentication enabled
19/03/2025 13:49:00 Number of connected clients: 1
19/03/2025 13:49:00 [2] Pixel format:
19/03/2025 13:49:00 [2]   32 bpp, depth 24, little endian
19/03/2025 13:49:00 [2]   true colour: max r 255 g 255 b 255, shift r 0 g 8 b 16
19/03/2025 13:49:00 [2] Enabling CopyRect encoding
19/03/2025 13:49:00 [2] Using tight encoding
19/03/2025 13:49:00 [2] rfbProcessClientNormalMessage: ignoring unknown encoding -260 (fffffefc)
19/03/2025 13:49:00 [2] Using JPEG subsampling 1, Q41
19/03/2025 13:49:00 [2] Interframe comparison enabled
19/03/2025 13:49:00 [2] Enabling Desktop Size protocol extension
19/03/2025 13:49:00 [2] Enabling LastRect protocol extension
19/03/2025 13:49:00 [2] Enabling QEMU Extended Key Event protocol extension
19/03/2025 13:49:00 [2] Enabling Extended Desktop Size protocol extension
19/03/2025 13:49:00 [2] rfbProcessClientNormalMessage: ignoring unknown encoding -309 (fffffecb)
19/03/2025 13:49:00 [2] Enabling Fence protocol extension
19/03/2025 13:49:00 [2] Enabling Continuous Updates protocol extension
19/03/2025 13:49:00 [2] rfbProcessClientNormalMessage: ignoring unknown encoding -307 (fffffecd)
19/03/2025 13:49:00 [2] Enabling Extended Clipboard protocol extension
19/03/2025 13:49:00 [2] rfbProcessClientNormalMessage: ignoring unknown encoding 1464686180 (574d5664)
19/03/2025 13:49:00 [2] Enabling full-color cursor updates
19/03/2025 13:49:00 [2] Using Tight compression level 1
19/03/2025 13:49:00 [2] WARNING: Disabling QEMU Extended Key Event extension because neither LED state
19/03/2025 13:49:00 [2]   extension is supported by the client.
19/03/2025 13:49:00 Using 4 threads for Tight encoding
19/03/2025 13:49:00 [2] Client clipboard capabilities:
19/03/2025 13:49:00 [2] - Plain text (limit = 0 bytes)
19/03/2025 13:49:00 [2] Continuous updates enabled
19/03/2025 13:49:00 New screen layout:
19/03/2025 13:49:00   0x00000000 (output 0x00000040): 1121x841+0+0
19/03/2025 13:49:00 [2] Continuous updates enabled
19/03/2025 13:49:00 [2] Continuous updates enabled
19/03/2025 13:49:00 [2] Continuous updates enabled

Here is my websockify.log file:

WebSocket server settings:
  - Listen on :10644
  - No SSL/TLS support (no cert file)
  - proxying from :10644 to localhost:5901
[19/Mar/2025 13:47:02] Plain non-SSL (ws://) WebSocket connection
[19/Mar/2025 13:47:02] Path: '/websockify'
[19/Mar/2025 13:47:02] connecting to: localhost:5901
[19/Mar/2025 13:49:00] Plain non-SSL (ws://) WebSocket connection
[19/Mar/2025 13:49:00] Path: '/websockify'
[19/Mar/2025 13:49:00] connecting to: localhost:5901

My submit.yml.erb file:

---
batch_connect:
  template: "vnc"
  before_script: |
    export XDG_RUNTIME_DIR=$(mktemp -d /tmp/XXXXX)
script:
  job_environment:
    SBATCH_EXPORT: "ALL"
  native:
    - "-n"
    - "<%= bc_num_slots.blank? ? 1 : bc_num_slots.to_i %>"
    - "--nodelist=<%= node_list %>"

My form.yml file:

---
title: "My Insomnia Desktop"
cluster: "insomnia"
submit: "submit.yml.erb"
attributes:
  desktop: "xfce"
  bc_vnc_idle: 0
  bc_vnc_resolution:
    required: true
  bc_account:
    label: "Required: Account Name"
  node_list:
    label: "Node name here"
    widget: "text_field"
    required: true
form:
  - bc_vnc_idle
  - desktop
  - bc_num_hours
  - bc_num_slots
  - bc_account
  - node_list
  - bc_queue

My cluster.d/cluster.yml file:

---
v2:
  metadata:
    title: "insomnia"
  login:
    host: "2402-login-001.domain.edu"
  job:
    adapter: "slurm"
    cluster: "insomnia"
    bin: "/usr/bin/"
    conf: "/etc/slurm/slurm.conf"
    # bin_overrides:
      # sbatch: "/usr/local/bin/sbatch"
      # squeue: ""
      # scontrol: ""
      # scancel: ""
  batch_connect:
    basic:
      script_wrapper: |
        module purge
        %s
    vnc:
      script_wrapper: |
        module purge
        export PATH="/opt/TurboVNC/bin:$PATH"
        export WEBSOCKIFY_CMD="/usr/local/bin/websockify"
        %s

My ood_portal.conf file:

listen_addr_port: 3443
servername: 2402-login-001.domain.edu
port: 3443
ssl:
 -keys here
usr_map_cmd: '/opt/ood/ood_auth_map/bin/ood_auth_map.mapfile'
auth:
  - 'AuthType Basic'
  - 'AuthName "Insomnia"'
  - 'AuthBasicProvider PAM'
  - 'AuthPAMService ood'
  - 'Require valid-user'
host_regex: 'ins\\d+'
node_uri: '/node'
rnode_uri: '/rnode'

It would be helpful if you could point me in the right direction to see my virtual desktop.

Many thanks,
Sam

2

Hi and welcome!

These are the messages that caught my eye. You have a black screen and you can see here the message about not having the binary xfdesktop.

This line is a bit scary - I’m pretty sure we grep through that file for an important reason, though it could be a red herring.

I’m at the GOOD conference right now (the Open OnDemand conference) so my replies may be delayed, but I would initially check into why you don’t have all those binaries that you likely should have.

3

Hi Jeff!

Thank you so much for the quick response!

I was able to install xfdesktop and it worked!

I am still getting your concern about this being in the output.log file ./websockify.log: No such file or directory:

Setting VNC password...
Starting VNC server...
Killing Xvnc process ID 1495893
Xvnc process ID 1495893 already killed
Xvnc did not appear to shut down cleanly. Removing /tmp/.X11-unix/X1
Xvnc did not appear to shut down cleanly. Removing /tmp/.X1-lock

Desktop 'TurboVNC: ins039:1 (sc5292)' started on display ins039:1

Log file is vnc.log
Successfully started VNC server on ins039:5901...
Script starting...
Starting websocket server...
Launching desktop 'xfce'...
[websockify]: pid: 1498027 (proxying 57451 ==> localhost:5901)
[websockify]: log file: ./websockify.log
[websockify]: waiting ...
grep: ./websockify.log: No such file or directory
_IceTransmkdir: Owner of /tmp/.ICE-unix should be set to root
/usr/bin/iceauth:  creating new authority file /tmp/I87wI/ICEauthority

(xfwm4:1498065): xfwm4-WARNING **: 15:45:33.816: Unsupported GL renderer (llvmpipe (LLVM 16.0.6, 256 bits)).

(xfce4-session:1498044): xfce4-session-WARNING **: 15:45:33.821: Unable to launch "xfsettingsd": Failed to execute child process “xfsettingsd” (No such file or directory)
[websockify]: started successfully (proxying 57451 ==> localhost:5901)
Scanning VNC log file for user authentications...
Generating connection YAML file...

Why would this be concerning?

Best,
Sam

4

:person_shrugging: I’d have to look into it more, I’m away at a conference at the moment so can’t check it directly.

But if it works, then it must not be that important?

5

Jeff, the grepping happens in lib/ood_core/batch_connect/templates/vnc.rb in an until statement. In Sam’s case, I think it is just taking a second for the file to get created and that’s why it prints the error once, and then proceeds normally.

6

Thank you both for the response.

I’m now editing the Dashboard with my institution’s logo, specifically the one in the footer. I copied a version from /var/www/ood/apps/sys/dashboard/app/views/layouts/_footer.html.erb to /etc/ood/config/apps/dashboard/views/layouts/_footer.html.erb. I was trying to update the image so I added my logo.png to /var/www/ood/apps/sys/dashboard/app/assets/images/png.logo but go this error:

Error during failsafe response: No such file or directory @ rb_sysopen - /var/www/ood/apps/sys/dashboard/app/assets/images/logo.png

I reverted it back to the original but got a 500 error on my dashboard. After a while, it will go back to normal. Is there a way to easily refresh it so I don’t have to wait?

Additionally, where should these asset images be located? Am I putting it in the right location?

7

Do not add assets to /var, that is going to cause even more problems.

Drop the file in /var/www/ood/public and reference it through the href /public/png.logo.