Black Screen KASMvnc local install on Ubuntu Server 22.04 with Cinnamon DE

[theglove44]

Describe the bug When navigating to https://{LAN IP}:8444 I get a black screen but see the KASMvnc control panel.

I've gone through the open and closed tickets to find a solution and tried various options with the same output.

Most recently I've deleted the ~/.vnc folder and started again and chose option 2 for the xstartup and gone through the process of editing the xstartup as per a previous ticket and made sure that dbus-x11 was installed which it was. The result of that was I still have a black screen.

I have also tried directly from the Ubuntu server via https://127.0.1.1:8444 and have exactly the same result.

System Description Provide the output of

NAME="Ubuntu"
VERSION_ID="22.04"
VERSION="22.04.4 LTS (Jammy Jellyfish)"
VERSION_CODENAME=jammy
ID=ubuntu
ID_LIKE=debian
HOME_URL="https://www.ubuntu.com/"
SUPPORT_URL="https://help.ubuntu.com/"
BUG_REPORT_URL="https://bugs.launchpad.net/ubuntu/"
PRIVACY_POLICY_URL="https://www.ubuntu.com/legal/terms-and-policies/privacy-policy"
UBUNTU_CODENAME=jammy

KasmVNC Details kasmvncserver_jammy_1.3.1_amd64.deb

Provide the output of this command.

Copyright (C) 1999-2018 KasmVNC Team and many others (see README.me)
See http://kasmweb.com for information on KasmVNC.
Underlying X server release 12008000, The X.Org Foundation

To Reproduce Steps to reproduce the behavior (for non-installation issues):

1. Go to '...'
2. Click on '....'
3. Scroll down to '....'
4. See error

Expected behavior The expected behaviour of navigating to https://{LAN IP}:8443 is to see my DE GUI

Browser I've tried multiple browsers across multiple OS's and still have the same issue. Brave, Chrome, Edge via MacOS and Windows.

Additional context [https://pastebin.com/YSPgTa4s] that is the link to the log output

[mmcclaskey]

most likely this is an issue with gnome with your desktop environment (DE) and not KasmVNC. KasmVNC will show a black screen if the DE is not running or not running properly. Unfortunately there are too many combinations of Linux distros and Desktop Environments for us to test and provide instructions that will work on all combinations. Generally speaking, you will need to manually configure your xstartup script. I would search for what others have used for the xstartup script with Cinnamon, the KasmVNC xstartup script should be identical to any other flavor of VNC. Sorry I couldn't be of more help.