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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Not able to access mate-terminal over SSH with X11 forwarding

From a Linux desktop, I am not able to open the mate-terminal on a remote server over SSH with X11 forwarding. I am able to open the Firefox though. So, I tried opening the SSH session with -vvv and ...
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Linux: Lookup for an VNC Server that feels like RDP

I'm running a linux server somewhere in the internet. The linux server didn't have a display or keyboard attached. I want to use it as always online linux terminal server. I after some testing, xrdp ...
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How can I understand `sudo optirun nvidia-settings -c :8`?

I run manjaro-gnome thinkpad laptop. The laptop has a NVIDIA graphics chip and an Intel one. I am puzzled as to how programs can determine whether to use NVIDIA or Intel graphics chip. In order to ...
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Touchpad randomly starts moving on its own when trying to use

Sometimes, when I try to use my laptop's touchpad, when i touch it and try to move, it starts to randomly move and click. I found that plugging a mouse into the laptop and moving it a bit solves the ...
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Gnome Totem never runs

totem never runs, and I run into this problem when I open it ~$ totem Gdk-Message: 10:40:58.480: Error 71 (Protocol error) dispatching to Wayland display. I still have this problem from first day of ...
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X11 unable to open display after re-logging into a tmux session

I have a desktop at work that I use as a "tmux server." I ssh -Y u@Work_Desktop from home into the Work Desktop then ssh -Y u@Work_Server into another server at work. I run x applications ...
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Xauthority for python plotting in a docker container

I'm trying to understand how to run a docker container with an X11 server running in it so that I can do visualizations when I write some python code, and found lots of answers out there. I found many ...
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Optimus Graphic card identification

With this data, Graphic card is Optimus? ~$ lspci -nn | egrep -i "3d|display|vga" 00:16.3 Serial controller [0700]: Intel Corporation 6 Series/C200 Series Chipset Family KT Controller [8086:...
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Is there a better way to start Xorg with pulseaudio from systemd?

I'm having some problems setting up a service that run's an Xorg instance. My computer is running archlinux, I'm implementing an Xorg session managed by systemd that do not use a desktop environment. ...
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How to disable X11 extension (MIT-SHM) for systemd-nspawn container?

X Error of failed request: BadValue (integer parameter out of range for operation) Major opcode of failed request: 130 (MIT-SHM) Minor opcode of failed request: 3 (X_ShmPutImage) Value in ...
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Why does X11 stop putting my screen to sleep after several standby/resume cycles?

For several years (~2012-2020) and over multiple computers (AMD/Intel of various vintages, S3/AMD/Intel graphics), I've observed what appears to be a curious, DDX-independent bug in X11. Occasionally, ...
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What program is responsible for drawing the wallpaper with Cinnamon

I was curious to look at the code which draws the desktop background, or wallpaper, using the Cinnamon desktop environment. (partially due to some ugly behavior when combining hidpi and tiled images). ...
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What's the difference between Xpra and Xephyr?

I'm curious as to which of the two is the more tested and generally approved way of sandboxing X11. Both are available in my distributions official repository, but I don't know which one I should ...
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Can't X11 forward through SSH: Unable to open X display

I've already gone through X11 Not Forwarding over SSH ($DISPLAY not getting set) and How to forward X over SSH to run graphics applications remotely? and am still getting my problem. I'm running a pi ...
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How to list available WM_CLASS options?

I am running the command to get data on the active applications/windows of Ubuntu 20.04: wmctrl -xlp | \ grep "$(xprop -root | \ grep _NET_ACTIVE_WINDOW | \ head -1 | \ awk '...
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Wayland vs Xorg vs X11 [duplicate]

I am not sure about this but these are my current thoughts. X.org is an implementation of the X11 protocol and X11 is just a protocol and not a piece of software. My question is that is Wayland a ...
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How to sync different fps video inputs

I want to do something similar to the one on this guide but in that case both inputs have the same fps, I want to sync two distinct framerate inputs, here a sample: ffmpeg \ -f x11grab \ -...
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How can I convert X11 keysym to the string that will be typed?

I have a keysym number (for example 0x1a2, which is XK_breve in keysymdef.h, in latin2 charset). Is there a way get a string that will be typed when key emitting that keysym will be pressed? I tried ...
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Speeding the initialization of the X.org server, greeter, and session

Background I am currently experiencing a long "startup" time on my machine (and was well before gorilla): .-/+oossssoo+/-. sterlingbutters@butters-ubuntu `:...
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x11 auto updates the screen resolution in remote session

I am running creating a server client session where I am displaying my server which is a linux machine. I am using x11 as my display and video agent. The issue I am facing is, the screen resolution ...
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Chrome fonts look horrible. They appear to have spaces in some of the letters

Using Gentoo and X11. Not using a desktop manager....only X11 and compiz fusion. My default chrome fonts are horrible. For instance, see the space that is between proper ty. Is there anything I can do ...
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How can one create a custom keyboard layout for Linux?

Ideally, I'm looking for a GUI tool, maybe a web application, but good documentation on creating a text definition for a keyboard layout would be great too. What is the normal procedure here? In this ...
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Multiple issues with LXDE/LightDM after upgrading to Debian 10

None of these issues happened on Debian 9, and they seem related, so I'm thinking that they may be caused by some single change or misconfiguration. Graphics drivers seem to be fine, as 2D and 3D ...
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Forwarding X through SSH - where are computations done?

If I forward an X application through an SSH connection, do the computations to display the application get done on my device or on the SSH'd device? If I was running something like Blender on an SSH ...
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Thunderbird/X11 - pasting images from clipboard/primary selection fails unless I first paste to libreoffice

If I do a screenshot to clipboard like this: xsnap -png -stdout | xclip -selection primary -t image/png .....then a middle-mouse-button-paste to thunderbird yields a binary paste starting with '�PNG ...
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Is there a default/core File Manager provided by X11 or Debian?

I recently installed Debian without a desktop environment. Currently, I'm using OpenBox in X11 and have yet to install a File Manager. I've found that in, seemingly all, programs capable of opening or ...
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Is it possible to run fb on one head and X on anohter, given one card connected to a TV and a monitor?

I would like to set up so that my computer's monitor is connected to it's VGA output, while having a framebuffer on the other head. Both heads seem to share a card. They work fine as part of the same ...
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Issue with correctly running a systemd service file

I have a GUI program that I can run from a terminal with no issue using: $ /home/user1/ibg/ibg username=*** password=*** With the above command, the program GUI is displayed, get automatically logged-...
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Issue with creating an ubuntu service unit file for a program with a GUI

I am trying to write a unit service file for a program that has a GUI. I have an ubuntu server from DigitalOcean and I connect to it with TightVNC to display:2. The GUI requires a username and ...
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Start X-application at boot

I have x-application which monitors remote object and displays corresponding picture on the screen. If I run startx and then from another terminal start this application it starts successfully and ...
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ffmpeg hangs with command that used to work

I'm attempting to record video (a screen capture) on a Debian 10.4 laptop. I'm using a command that used to work fine on Mint 19.3, on the same hardware. I'm guessing the version of ffmpeg is newer ...
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How to logout and kill all the running processes

Currently i logout by killing Xorg like this: killall Xorg but i want to kill all the processes with it, so it will be like a shallow restart, restarting without physically doing it.
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How to prevent XF86WWAN press from performing rfkill block

I would like to use the WiFi kill key (XF86WWAN) from my Thinkpad X1 Carbon for a purpose other than blocking WiFi. I am using Arch Linux, with a very small WM called bubbles, similar to xmonad. I can ...
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startx fails with “libGL.so.1: undefined symbol: __GLXGL_CORE_FUNCTIONS”

I just hit this issue after a system upgrade. The greeter wouldn't launch properly. I was getting a black screen with only a cursor (but I could move it around). When trying to skip the greeter and ...
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Is it possible to detect screen recording in X11

On my mac, I used to have a programme called MicroSnitch which would notify me if an application was using the camera or the microphone with a little icon. I'm using arch, with X11, and I was ...
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Emacs immediatelly crashes after startup because of X11

Title is self explanatory, Emacs (and GIMP) crashes immediately after startup and take whole Gnome shell with them. I use Fedora 31 with Gnome. I managed to get call stack from system logs, ...
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Inconsistent behaviour of Plymouth at shutdown

I'm currently developing an application that should run in kiosk mode. On shutdown halt it shall show a screen with some instructions for the user for which plymouth is used. The application is ...
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Xlib: Why am I having to close the display for mapping and unmapping windows?

// ... int main(int argc, char *argv[]) { int rev; Window win; Display *dis = XOpenDisplay(NULL); XGetInputFocus(dis, &win, &rev); XUnmapWindow(dis, win); XCloseDisplay(dis); /...
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How can tell CDE that my resources are in a specific subdirectory?

I am resurrecting an old archive that lived on a Sun Solaris 2.6 box 20-someodd years ago. While I thought I had everything archived, it seems that I missed archiving files like .Xresources, .profile, ...
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libGL error: No matching fbConfigs or visuals found

I have some host named A and some computers named B. I try to run glxgears on host A via ssh: ssh user@A -Y glxgears and I get error: libGL error: No matching fbConfigs or visuals found libGL error: ...
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How to add a fake display for X?

What I wish to achieve? I want to add a fake display for X server. I don't need it to be displayed. I just want it to run in the background and make X feel that there are two displays attached to my ...
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make resource apply to both classes XTerm and UXTerm

In order to apply the same resource to both xterm and uxterm, currently my configuration file has to have separate, duplicate entries: XTerm*scrollBar: true UXTerm*scrollBar: true ...
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Using X11 on OpenSUSE with WSL2

I installed WSL2 on my computer, and with it I grabbed OpenSUSE so I could get some experience with a distro besides Ubuntu. I sideloaded OpenSUSE 15.1, and it installed fine and loads into the ...
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Why does xset s activate immediately deactivate?

I believe that the command xset s activate is meant to activate the screensaver in X. I tried entering it into a terminal, and it seems to work at first, but the screensaver exits almost straight away ...
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Applications suspended when switching user?

I've using 2 user and switch them between works using this command: dm-tool switch-to-user workuser1 and using Ctrl+Alt+F7 /F8 to switch users after logged+ in. But when I switch user, some ...
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How to properly set environment variables for KDE?

I'm using Kubuntu v20.04, which I launch using SDDM. The issue I'm facing is setting some environment variables for my Xsession. I use ~/.config/plasma-workspace/env/env.sh to export my environment ...
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Evince: Unable to init server: Could not Connect: Connection refused

When running $ evince a.pdf I receive the following error message. No protocol specified Unable to init server: Could not connect: Connection refused Cannot parse arguments: Cannot open display: I ...
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Changing keyboard layout variant

I use a czech kb layout, and I wanted to make the number row actually type numbers, instead of accented characters, so I added this to my default layout (/usr/share/X11/xkb/symbols/cz): xkb_symbols &...
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Using DisplayPort results in screen flickering and blacking out

My computer is running Arch, and I would like to use a single monitor via DisplayPort. The configuration works fine with an HDMI cable, but is limited to 30 frames per second on a 3840x2160 resolution....
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Why can't I type a g̃ the same way I type ñ?

My language, Guarani, uses G̃/g̃ to denote the nasalized velar approximant. I thought I'd be able to type it by combining a dead tilde with g, but this does not work. Why doesn't it, and how can I fix ...

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