Linux: Screen desktop video capture over network, and VNC framerate

Sorry for the wall of text - TL;DR: What is the framerate of VNC connection (in frames/sec) - or rather, who determines it: client or server? Any other suggestions for desktop screen capture -...

java.net sockets, readline and line terminators (VNC connection)

I am using x11vnc and I want to develop simple client for it. So, the work is: recieve info from socket send info recieve next data send another info and etc. So, for example, I am using the...

VNC only displaying the mouse cursor but nothing else

I have a RaspberryPi with Raspbian and x11vnc installed. I can: startx & x11vnc -usepw -background And then connect to the VNC Server using my Mac. However, after some event (it used to work at...

Running Chromium inside Docker - Gtk: cannot open display: :0

When I try to run chromium inside a docker container I see the following error: Gtk: cannot open display: :0 Dockerfile: (based on https://registry.hub.docker.com/u/jess/chromium/dockerfile) FROM...

Containers are being spawned however the issued command fails when spawning multiple number of docker containers

We have a custom chrome extension that performs a certain set of web related tasks. The tasks need to be exclusive and hence we went forward with the concept of running each task on an individual...

Recursive while loop in docker cmd

I'm trying to run google chrome inside docker containers. I have been able to successfully do so, however there have been instances where chrome would not run on some of the containers (mass...

flask-socketio send message when thread finishes

I have a Python flask script (using flask-socketio) which hosts a website with a few buttons. When I click on one of the buttons the browser send a request via socket.io to the server. The server...

WebDriverException: Message: unknown error: unrecognized Chrome version: HeadlessChrome RobotFramework

I am trying to use google-chrome headless feature in my ubuntu machine to run selenium scripts headless .Following is the script that I am running #headless.robot *** Settings *** ...

Delay in X11VNC response

I have been trying to write a simple VNC viewer which requests for framebuffer updates every 30ms on a nvidia Tegra K1 board. // Data to be sent to the X11VNC server for requesting updates for...

NightwatchJS /geckodriver/ selenoid: Error retrieving a new session from the selenium server, while executing test on Firefox,

Setup Information: OS - MacOS HighSierra - 10.13.3 DockerCE for Mac - 17.12.0-ce-mac49 Selenoid, Selenoid-ui - Latest Firefox - 58, geckodriver - 0.191 (0.190,0.170) Chrome - 63, ChromeDriver...

How to dockerize an app together with VNC (arduino IDE)

I'm trying to dockerize an arduino IDE on raspberry pi using this answer: https://stackoverflow.com/a/16311264/6791424 ps: I know how to pass the X server to the docker container but in this case...

Docker Images Report as Taking 5-10x Actual Space on BTRFS Filesystem

Today's day one with Docker, and I've been overjoyed (cough) to find that docker is taking 5-10 times as much space to store the images on my hard drive as the images themselves. A visual...

Docker OpenGL support without GPU, gl error: linking with uncompiled/unspecialized shader

In order to build up a headless simulation cluster, we're working on containerization of our existing tools. Right now, the accessible server does not have any NVIDIA GPUs. One problem, that we...

Nvidia Driver Won't Load on Ubuntu 16.04.4 LTS

I am trying to install NVIDIA Driver for Titan Xp. I type the following for installation: sudo apt-get install nvidia-418 The installation runs with no errors. However, after rebooting the...

/usr/bin/env: ‘python’: No such file or directory

I am trying install Docker with Minetest thought Make. I download Dockerfile Makefile and supervisord.conf from here: https://github.com/zaoqi/minetest-novnc-docker Use fromdos to convert them to...