Questions tagged [x11]

The X window system (commonly X Window System or X11, based on its current major version being 11) is a computer software system and network protocol that provides a basis for graphical user interfaces (GUI) for networked computers.

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Can't interact with DWM

I'm running gentoo and, as the title says, i can't interact with DWM. By this i mean that Alt+Shift+Return doesn't open a st, Alt+p doesn't open dmenu Weirdly Alt+Shift+q does exit DWM. I do have st ...
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How do i get the xprop output for my current window via ssh?

On my device A, i'm running x11 with dwm. I want to ssh into device A from device B and get the xprop output for the window i've focused on the device A. When I'm in the terminal on device a in dwm, ...
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Accidentally deleted xorg.conf files, need to restore X11

Was trying to get nvidia stuff to work properly on my Arch hybrid GPU laptop, edited /etc/X11/xorg.conf and ran nvidia-xconfig, ended up totally breaking my Desktop Environment to where trying to ...
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SSH X11Forwarding: apps display on the server instead of the client

After I login to the server with ssh -X user@192.168.1.100 and launch e.g. brave, Brave is displayed on the server, not the client. Same is for Thunar. However, if I do xfce4-settings-manager, the ...
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How can I target an X window to a secondary monitor? (and know what it is called in order to do that)

I have two monitors connected (one HDMI, one DVI) connected to an Nvidia GT710 GPU on my linux box. When I am logged in to my box over ssh, if I run xeyes it will always run on the same screen. I ...
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Xorg crash after `ACPI group/action undefined: jack/videoout / VIDEOOUT`

Since the last couple of days, Xorg crashes about once a day, completely at random. When it crashes, my monitors turn black and a couple seconds afterwards LightDM's login manager pops up. I'm on Arch ...
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Starting GUI apps without a window manager. `xinit command` vs .xinitrc containing `command`

I have an Ubuntu Server 20.04 with no widow manager (well, mwm is installed, but I am not using it here). I am running commands over ssh and watching a monitor attached to the host. I can start ...
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When ctv vs gtf?

I watched some video tutorials on youtube about the xrandr command and appears the cvt and gtf commands too. When is mandatory use one over the other?
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How can I display a GUI LXC container on a physically connected display without a window manager?

I want to have a setup where I have LXC OS containers that start full-screen on particular displays. As an intermediate step, I am trying to get X apps from the container to display via host X. I have ...
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Simple way to query which monitor is currently focused

I'm wondering if there is a tool which can query which monitor is currently focused. I'd like to have a script which changes the wallpaper on the monitor I am currently on (using xwallpaper). From ...
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How to cause a termination of background process started from .xsession(rc) when I'm logging out?

I start a background process from my .xsessionrc script like this: my_process & As a process, it is owned by x-session-manager. Looks ok. But when I log out from my session the process isn't ...
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Debian 11 Bullseye Can't Login After Screen Lock. Think it could be X11 and NVIDIA related?

I have a Samsung laptop with a GTX 2060 running 2 external displays. I recently did something to switch the primary login screen to the laptop's built-in monitor, (which previously was appearing on ...
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i3 font size changed after Space got stuck

I'm using Arch 5.14.12-arch1-1 with i3 as the window manager. The other day, while browsing in Firefox, I did something trivial (like changing a Firefox tab or jumping to another i3 workspace or just ...
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Why do some fonts appear zoomed in after system update?

Since the last system update, for various applications the font size has increased. Even one application for which I can be sure, that it has not been replaced, because I have a custom version and ...
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How to map a key to a sequence of key and combo, including that key?

I tried to use dxhd with xdotool to prepend each key with Ctrl+G, then type that key, and hit another key, like so #!/bin/sh # @{a-z} xdotool key ctrl+g xdotool type {a-z} sleep 1 xdotool key Tab ...
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glxgears gives Error: couldn't get an RGB, Double-buffered visual on one remote server but not on another

The problem: I ssh to two remote clusters. By running glxgears, on one cluster I can successfully visualize the rotating gears though with some warning messages (details below), but on the other one ...
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Using a builtin GUI in openSUSE

I want to browse the internet with firefox and found that there was no DISPLAY environment variable and I also had the following message : You did not install any X-Server (e.g. Xorg)! Please install ...
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xsel not recognized after "su - other-account" [duplicate]

I am new to Linux and have set up the following version of Ubuntu as a VirtualBox VM using this process: ubuntu-20.04.3-desktop-amd64.iso The first account created was a administrator account. I ...
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Debian - Setting up a trackball as scroller

I want configure one of the buttons of my Elecom trackball to change the ball to act as a vertical/horizontal scroll. So far I triev this way: I used xinput list to find the trackball name and xev to ...
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Access Input Control

I am currently trying to get into writing something like an autoclicker. I work on a openSUSE Leap with KDE environment and program in c++ or FORTRAN or python. In order to do so I need access to ...
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xinput keycodes do not align with xmodmap table

Is there a table that maps keycodes from the command xinput test-xi2 --root 3 to keysyms? I've tried xmodmap -pke which I found in the ArchWiki but they don't correspond. How does X even interact with ...
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Select text without using mouse in Linux terminal

I know there is a shortcut to copy and paste contents in a Linux terminal. In addition, you can scroll through the contents of a terminal window by using Shift+PgUp and Shift+PgDown. But is there any ...
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New keyboard layout variant not detected after reboot

I have added a new section to the /usr/share/X11/xkb/symbols/il file. I then added a reference of the section in /usr/share/X11/xkb/rules/base.lst and refreshed sudo dpkg-reconfigure xkb-data. However,...
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Google Earth Pro is not working in Gnome 41 wayland session Works fine in Xorg on Devuan Linux

Synaptic, Google Earth, xterm etc are not working in Gnome wayland sessions. I am using Devuan Daedalus (Testing) and it is stable, except for some offending apps like synaptic, xterm, Google Earth ...
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Cannot find/detect PS/2 mouse in old Debian. How to enable?

I'm trying to configure XFree86 3.1.2 on my Debian 1.1 (buzz) distribution, but after configuring XFree86, I receive the error: Fatal server error: Cannot open mouse (No such device) when trying to ...
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X11 connection rejected because of wrong authentication

First of all what I want to do: I want to login to a server via ssh. Then change change the user via sudo su user and start some application on my screen. Some collegues do it by su user export ...
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How does a window manager (or X11) handle taskbar?

I am using openbox and plank. Whenever I open (and maximize) an application, the window will automatically avoid collision with plank area. My question is, is it possible to designate a window to be a ...
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Keyboard remapping at a "lower layer" in X

Keymaps have a similar flow to the OSI model, though not nearly as well defined. I'm currently remapping at a higher level than I would like. Obviously Layer 1 corresponds to the physical keyboard and ...
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How can I permanently set xrandr monitor position?

I have two monitors on my setup (Arch Linux). I have my main screen in front of me and a secondary screen to the left. On startup, X session assumes that monitor 2 is on the right. I can change this ...
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X11 video memory requirements with multiple desktops and windows open

I am running i3 window manager on a single 4k display. However, I have 12 desktops and maybe 50 windows open. Recently I noticed that zoom video is very laggy at times, also it takes a second to ...
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Setting font DPI system-wide

I have recently installed Debian 11 with the desktop environment LXQt on a laptop with a 14 inch display. By default text and icons are tiny, so to get a reasonable text size I have set the DPI in ~/....
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Audio problems in Linux when using SSH access

I am using Ubuntu 20.04 desktop, I enabled SSH access, then I tried developing a WebRTC application without GUI on that PC remotely through SSH access. Strangely the audio subsystem looks to cause my ...
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gdm3 or lighdm not working (X11 won't start)

I am using Debian 9. After installing Gnome I only see my mouse cursor on my computer screen. I uninstalled Gnome and enabled X11 but it didn't work. I need to connect to the board I use via ssh and ...
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Unable to startx with non-root user (Cannot open /dev/tty0 (Permission denied))

I'm unable to startx without root permissions, as it throws me this error: parse_vt_settings: Cannot open /dev/tty0 (permission denied) When I run startx as root, either with sudo or by login, it ...
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How to tell if an openbox menu is showing or not?

Openbox doesn't come with any option to toggle show/hide a menu, the window manager only has an option to show a menu, and then it can only be closed by clicking outside or pressing Esc. So, I am ...
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Cannot open Ubuntu (18.04) terminal window while on remote desktop (xrdp)

I am unable to open ubuntu (18.04) terminal while on remote desktop (xrdp). I am able to access using ssh where the following error is being generated whenever I am trying to open the terminal through ...
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How to get xinput device ID of touchscreen without using manufacturer string?

Chromium only shows proper touchscreen behavior when the supplied ID argument is 7 in the case of the below devices. Note that the xinput IDs are subject to change during a reboot, so I can't just use ...
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USB Ports Malfunctioning - usb 1-1: device descriptor read/64, error -71

I have a Dell Latitude 7350 2-in-1 (touchscreen tablet hybrid) that is 7+ years old. I originally had installed Pop!_OS on the system, and it worked fine for months, but one day my wireless keyboard ...
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get event when user has selected a text in any window in X11

I want to write an app that shows a popup-menu after a user has selected a text in any window in Linux (debian based). Mac users may know "PopClip" (https://pilotmoon.com/popclip/) and as I ...
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What Linux software component handles display detection and monitor arrangement

I am working on a multiple display system running Ubuntu 20.04 with Nvidia graphics card. Currently all connected displays (not just the added/removed display) turn black momentarily after the ...
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X quits when certain web pages are opened with web browsers

Whenever I visit https://github.com/vinc/level (as one example), X quits, and am taken to login screen. This happens with Firefox and Chromium. I use dwm, and following is "~/.xsession": # ...
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In X11 is it possible to instruct the client to launch a process in a reduced color palette?

Scenario: I work on my Macbook running X11 Quartz I log into a remote server running CentOS via X11 forwarding over ssh from my Macbook I wish to launch a web browser from the server but due to the ...
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How to set font sizes in minimal X Window setup

I installed openSUSE with generic/minimal desktop environment. It means there is no fancy KDE/Gnome settings program for setting the font sizes by default. On the other system I did the same, but ...
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PrintScreen key not registering in Arch Linux

I'm using Arch Linux with i3 as my wm and running an x server. All my keys work but printscreen key doesn't even register. I tried xbindkeys -k which seems to work for all keys except Print. My ...
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How do I create a separate XWayland server for each program without a new TTY?

Wayland is a simpler, modern, more secure alternative to the popular X display protocol; however, some programs break under Wayland because they're designed for X. XWayland exists which runs an X ...
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How to set the override-redirect flag on existing window?

I'd like to make a window stay on top of every other window (even if that other window is full-screen, has focus, and belongs to another parent). In my use case these windows are a full-screen ...
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How to copy a string into the X Window clipboard with the command line on Red Hat without using xsel nor any third-party tool?

On a restricted system where installing new tools is not possible, how could one copy a string into the X Window clipboard (the clipboard that works with Ctrl+C / Ctrl+V) with the command line or at ...
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How to setup :0.1 virtual display on-the-fly in X

I want to create a virtual monitor, add it to my current display as a seperate screen (In X sense) and share it over VNC. Now what I want to do is neatly described below in Arch Linux Wiki article on ...
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Cannot enable X11 socket on an unprivileged LXC container

I have created an unprivileged lxc container using the following config: # Template used to create this container: /usr/share/lxc/templates/lxc-download # Parameters passed to the template: --dist ...
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Mouse keeps clicking automatically - 10 clicks per second

I'm having an issue with X11 on Debian: the mouse will sometimes start randomly clicking like 10 times per second for about 2 - 3 minutes. It starts when there's some kind of video content started on ...

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