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Questions tagged [xserver]

Questions about the graphical display server of the X Windows System. This is the process managing the desktop. In various remote desktop solutions (VNC, XDMCP), it has a client role from an end-user view, they do not belong here.

A graphical display server compatible with the X Display Protocol, which is a network-transparent windowing system used commonly in the Unix world. Its official reference (and also most commonly used) implementation is X.Org . Alternatives include Quart/X, Cygwin/X or Wayland.

Responsible for communication with

  • X Clients, these are the GUI programs appearing on the display. X clients can connect it over TCP (if remote) or on unix socket (if local).
  • User input devices (keyboard, mouse, touch screen)
  • 2D graphical display
  • possibly with the 3D accelarator

It also has a specific client which manages windows on the display, the window manager. In maintains also a clipboard.

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DPI Scaling on NixOS with LightDM + XMonad

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 everything is working fine apart from DPI scaling in some…
Jordan Mackie
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xhost command for docker GUI apps (Eclipse)

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, specifically the xhost local:root: [ -d ~/workspace ]…
Moritz
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Can't display png

I'm running R-shiny (R version 3.0.1 (2013-05-16)) on a VM (Red Hat Enterprise Linux Server release 6.4). Everything works, i.e., server starts up, and application runs etc... as long as I don't try to plot a graph renderPlot I then see on the…
user2510097
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Docker cannot connect to X server

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: sudo docker run -t -d --name opencv…
Kasper Hansen
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Starting Xserver in Docker Ubuntu container

I have minimal Ubuntu installation in my container and I want to have Xserver running. I need XServer, because my app requires meshlabserver, which itself needs Xserver. I installed xserver-xorg and all other packages, but when I try to start X in…
Aleksei Petrenko
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Do Qt Applications require KDE?

Do all Qt applications require KDE to be installed? Is it enough if the Qt runtime is installed along with GNOME? Can I make a Qt application look exactly like a GTK application under GNOME? Could anyone please point me to some article detailing the…
BlueSilver
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How to avoid Eclipse leaks on XServer when editing Android XML files?

When I'm editing XML files in Eclipse (mainly, Android layouts and so), it causes leaks on XServer and it ends eating all my RAM (4GB), so I have to Ctrl+Alt+Backspace to continue. Do you know any remedy for that?
gskbyte
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In Linux, do I need an X server to do off-screen rendering?

And if so why? What does X do for me beyond piping my rendering commands to the graphics card driver? I'm not clear on the relationship X - OpenGL. I've searched the internet but couldn't find a concise answer. If it matters, assuming a minimal…
Luis
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How to determine from a python application if X server/X forwarding is running?

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 forwarding parameters or X forwarding will be…
Michal
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Where does xhost store the allowed network addresses?

Where does xhost store the allowed network addresses?
Dumb Questioner
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How do I get the window that currently has the cursor on top of it with X11?

How can I retrieve the top window of which the cursor is on top of in the X11 server? The window doesn't have to be ”active” (selected, open, whatever), it just has to have the cursor floating on top of it. Thanks in advance.
mkroman
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"Waiting for X server to begin accepting connections" infinite loop

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 Nvidia. To test it : echo "xterm && sleep 10" >…
Yoann Picquenot
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Attach/Detach to a remote instance of Eclipse

When using Eclipse over X-Windows on a remote shell (X port forwarding), is there a way to simply detach my X connection and come back to the process later. For a little more clarity, I'm on a Windows machine and have to reboot. I'd like to keep…
User1
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Understanding linux DISPLAY variable

I am new to Linux and I had to set DISPLAY variable for running a Java application. Somehow I managed to do that, and I understand that display can be set using :[.] but what I am doing is :1001. Now, this 1001 is…
codingenious
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How can I modify xorg.conf file to force X server to run on a specific GPU? (I am using multiple GPUs)

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 should proceed : The X display should be forced onto a…
user2682877
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