Is there any way to find out if the current session user is running an Xserver (under Linux) ? I've started off with things like: ps -e | grep X but this doesn't work always and one more thing I ...

How do I programmatically change the monitor brightness on Linux? I'm using SLES 11.

I have a script using java to connect to display X11 in the port 10.0 at localhost but i get always this error java.lang.InternalError: Can't connect to X11 window server using 'localhost:10.0' a...

I'm running Ubuntu server 20.04 and i need to install npm. But when i run apt install npm ,I see x11 packages in requirements. The following NEW packages will be installed: gyp javascript-common l...

I'm running a java app which creates a visual display of some of the things it is doing, while it is doing it. However, I'm want to run this in a script that won't have a display to attach to. In t...

How can I run graphical Linux desktop applications from the command line of Windows Subsystem for Linux (WSL)? First, I installed WSL 2 following these steps on how to install Linux on Window...

I have created a docker image for opencv and facial reckognition to simplify the setup process. But the recognize.py script needs X Server to show the image result. Here is what I have done so far...

I have recently installed the Ubuntu app for Windows 10 so that I can use it for a class. I am following some cryptic assignment directions to "try out tkinter". I installed the package python3-t...

I am trying to execute headless chrome Selenium tests via Jenkins using XVFB on UBUNTU AWS/VM. My Jenkins XVFB config is: Pre-build Execute Shell: export DISPLAY=:98 x11vnc -xkb -noxrecord -noxfix...

I have been using wkthmltopdf to convert html to pdf documents on-the-fly on my linux web server. The program originally needed X11 or similar X server to run correctly, but through many requests b...

Anyone got an idea how to get from an Xserver the list of all open windows?

Hey I'm having an issue getting ssh X forwarding to work. The setup is I'm sshing into my ubuntu VM off OSX Yosemite host machine. I already installed xQuartz on OSX, xauth on ubuntu, and I believ...

I wrote a little fetchmail script that checks the remote server and plays an audio file when I have new mail. I also wanted to also light up one of my keyboard lights when the mail was available bu...

I'm writing a linux application which uses PyQt4 for GUI and which will only be used during remote sessions (ssh -XY / vnc). So sometimes it may occur that a user will forget to run ssh with X for...

I'm running 2 GPUs and I'm trying to force X server to run on one GPU. According to this website : http://nvidia.custhelp.com/app/answers/detail/a_id/3029/~/using-cuda-and-x , here is how i s...

I've stripped the xserver configuration on my HiDPI laptop down to just: displayManager: lightdm (autologin, no greeter) windowManager: xmonad desktopManager: none (xterm disabled) And everyt...

I installed an Archlinux distribution, and I am trying to install xOrg. I installed xorg-server xorg-xinit and xorg-server-utils. I also installed xf86-video-nouveau because I have a 960M from Nvi...

I created docker container with X server inside. I use it for some off-screen OpenGL rendering. This container should work on any system (with or without X server running) and it should use hardwar...

Situation: I'm using multiple monitors and I want to get their names in bash. Currently I'm using Ubuntu 10.04. I know about xrandr. From it I can get only statistics data. What I want is to read ...

I'm looking at running a GUI app in docker. I've heard that this is incurs security problems due to the Xserver being exposed. I'd like to know what is being done in each of the following steps, sp...

I am trying to run a X11 server inside a docker container by using the XDummy driver. However, I have problems getting it to work. The intended purpose is to perform headless rendering. I can get i...

I have installed Eclipse on a remote Linux machine and trying to access it from my Windows box thru X11 forwarding. Yes, we have a requirement to do so. I'm having a problem with right click behav...

I am hosting Ubuntu 16.04 on Virtual Box from Windows 10. Inside that Ubuntu 16.04, there is QEmu emulating ARM processor, running Ubuntu Trusty (14.04). When I start QEmu as follows, it shows a w...

I am trying to use programs with a graphical interface in a docker container over ssh. Currently I am connected over ssh on an external machine where docker and the containers are running. On the ...

If I wanted to write a C program to talk to an X server on Linux and produce the simplest possible visual result, e.g. setting a single pixel on the display, how would I do it? I want to use...