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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Sometimes the GUI responds slowly - or not at all - or appears to crash - but the cursor still responds quickly. How does the mouse pointer work?

How is the mouse cursor implemented in the X.org X Windows system? Specifically, how should we understand these error cases: 1) I remember sometimes seeing the entire GUI become slow and stutter or ...
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39 views

Is it possible to change my display to amber monochrome?

I know this sounds really dumb, and I don't plan on using this much, but is there a way with xrandr or something similar to make my display show the equivalent of grayscale but using a color instead ...
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RHEL8 - X11 forwarding not working

I have two laptops, one running CentOS 7 and recently installed latest RHEL 8 on another one. The issue is that I am unable to launch any X program from RHEL 8 over ssh -X but reverse works okay (...
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Suspend and resume X session?

I use GNU Screen for terminal multiplexing, and I was wondering if a similar solution existed for desktop environments. This is not the same concept as locking the screen, or logging out of the ...
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18 views

Copying a program shortcut to some folder: the easy way

Case scenario: I have installed a program, say TeamViewer. Now I have a beautiful icon (shortcut) inside the Programs or DashBoard or Unity or whatever it is called now on my X-Windows flavour. I ...
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1answer
16 views

Accessing .Xdefaults settings from the terminal

Suppose: I wanted to access a particular key: value pair in my .Xdefaults I didn't want to manually parse the file I must use a shell command, and only a shell command How could I go about querying ...
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19 views

How to run a desktop environment from a docker container into a X11 instance?

I would like to be able to make patches to desktop environment components without having to modify my system. I thought a good way is to use a docker container where I can make changes freely and then ...
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Managing X11 configuration on a portable OS

Debian 9 is installed on a portable SSD, I regularly use it with 2 PC-s. One has an AMD GPU, the other has an Nvidia GPU. To not have to configure v-sync (Force Composition Pipeline) through nvidia-...
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xfce on cygwin X not working!

Good evening, I have a big problem, I'm fighting desperately with my PC to launch a session but it spits and my CPU goes up to 100% When I click on exit, the software tells me that I have 13 ...
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1answer
8 views

Remapping Caps Lock to Alt (Meta) in GNOME / X11

I'm looking to replace Caps Lock behaviour with the "Left Alt"/"Meta" modifier, in GNOME / X11. There are a few options to replace Caps Lock with Super, Ctrl, etc. in GNOME Tweak Tool, which seems to ...
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1answer
20 views

map caps lock key to work as shift key

My HP ZBook has a keyboard issue (colleague has the same model, same issue after ~2 years, seems really poor quality). It is that the left shift key is failing. So as a work around I would like to use ...
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6 views

centos: run a single site on startup(browser-GUI) - without Desktop environment

what i want is when i start my centos 7 server(minimal) automatically to show to user this site youtube.com and user can just browse and not to do anything else. So there will be no desktop just ...
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1answer
104 views

Prevent keyboard layout reset when USB keyboard is plugged in

Whenever I plug in a USB keyboard, the layout of all keyboards is reset to some system default (a US layout which doesn't have modifiers and other keys the way I want them). I've observed this on many ...
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1answer
31 views

X11 forwarding from Linux cluster to windows 10 personal computer via SSH

Our cluster runs Linux, and I can successfully ssh login to it using my windows 10 PC. However, when I'm trying to use X11 forwarding I always get the error: qt.qpa.screen: QXcbConnection: Could not ...
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0answers
22 views

using X11 to ssh to a Linux server with a GUI application (such as i3) using XQuartz

I'm trying to ssh to a linux server and run GUI applications like i3. My personal computer is a MacOS Mojave and I have setup X11: I setup XQuartz locally, ForwardX11 yes in my local ssh config and ...
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56 views

Fedora 29 with KDE - Xorg / QT - QXcbConnection: XCB error: 3 (BadWindow)

When running Katalon Studio or other Java apps with UI and i select an object of type combobox or list, an interface turns black and the application freezes and crash mai 26 16:21:04 tuxzao kwin_x11[...
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2answers
149 views

What is the environment variable XDG_VTNR?

Almost every page I've found is about to automatically start Xorg after login wihout explianation, take ~/.bash_profile for example: if [[ ! $DISPLAY && $XDG_VTNR -eq 1 ]]; then exec xinit ...
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1answer
31 views

XCompose is not updated for Urxvt when window manager starts

I am using awesome WM. When I start my window manager, I run setxkbmap -option compose:menu which has a ~/.XCompose with various extra definitions. Those work fine in Gvim, Firefox, Signal, and Slack (...
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33 views

How to run puppeteer in Docker on VPS and connect to display server to local machine?

I am running a puppeteer-controlled chromium instance inside of docker on a remote server. For a specific operation, I need to be able to interact with the page that is opened by puppeteer. This ...
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33 views

Yocto “Failed to run qemu: Could not initialize SDL(x11 not > available)”

So I've got Yocto on a local build server, coz who wants that massive build chewing up their workspace amirite? Host and Server are Arch Linux 4.19.44-1-lts Anyway I am just running up the example ...
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Can USB devices be used with X11 over the network?

I'm considering running an X11 client on an existing server, and then having a thin 'client' (X11 server) on a Raspberry Pi or similar, as a development environment / general computing. However, ...
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SDDM not starting WM after login of NIS-User

I have a system setup to get its users via NIS/yp from our accounts-server. Logging in via tty is not a problem and works perfectly. From there, I can also run startx just fine, so the WM starts. ...
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X Window System in Linux [closed]

What is X window system in linux ? How it is relatable to GNOME and KDE GUI enviornment ? I mean what is the relation between them ? Is X window system and GNOME are same or what ?
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26 views

run command over ssh on originating machine

I have a local machine nostromo running an interactive cinnamon desktop on debian testing. On it, I have gnome-terminal running with an ssh terminal open to a remote machine sulaco. I would like to ...
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i3: multiple displays; having some “resistance” from mouse pointer when crossing display

Can X or i3 in particular be configured so that the mouse would not jump immediately to the next display but would require some sort of "time and force" to take place, so that it would be easy to drag ...
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1answer
38 views

how to know the geometry of a window, while resizing?

It was last century, I do not remember what we used at the department, some basic X-server running XWindow, or Motif, and while resizing a window, we would see a small widget centred in the window, ...
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1answer
113 views

What's the downside to “TearFree” with intel graphics?

There is an option for Intel graphics to disable screen tearing under X11. It can be enabled by configuring xorg with a stanza like this, Section "Device" Identifier "Intel Graphics" Driver ...
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1answer
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debootstrap chroot x11 cannot open display 0 no protocol error

after installing a chroot, I found trouble when connecting to x11, I would think this was a normal use case but coudln't find anything specific about this use case # debootstrap stable /srv/stable/ .....
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Centos 7 XRDP Android Studio Blank Screen

It's similar to this question: Gnome - Android Studio completely blank screen on Centos 7. I have tried GNOME & KDE two different desktop env to open XRDP session, but got the same result. I ...
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1answer
56 views

How to disable mouse acceleration on Debian?

I tried to navigate here: /usr/share/X11/xorg.conf.d/90-mouse.conf/ But in this directory is no 90-mouse.conf How do I disable mouse acceleration?
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Non x11 apps over x11

I am seeing odd behavior on my X11 server on CentOS 6. X11 Forwarding works as you would expect. I can ssh (with -Y or -X) from CentOS 6 and launch & display xclock, but I can’t do the same for ...
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Button scrolling only as a fallback?

I am using a Thinkpad with a Trackpoint. By default on my system, libinput is configured to use button scrolling for the trackpoing, as configured by xinput set-prop 14 "libinput Scroll Method ...
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Solus - Fails to record my screen properly (It records but statically)

When I start to record my screen (using both OBS and SimpleScreenRecorder), it only records the initial screen when I start the recording and it only records the pointer movement and its changes. It ...
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Can I target the source xinput device when requesting input?

Sticking a yubikey in my computer I see, $ xinput --list ... ⎣ Virtual core keyboard id=3 [master keyboard (2)] ↳ Virtual core XTEST keyboard id=5 [...
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Fix Nvidia Breaking Xvfb?

I was using Xvfb again after having swapped my AMD gpu with a NVIDIA one, the result was rather annoying, i can no longer use Xvfb as it just crashes as soon as i launch it, Resolution doesn't seem to ...
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Multiple Xsessions on 1 computer

Currently i use i3wm on ubuntu, and docker to run my applications. I like discover other Linux distributions, and split my enviroments to write specific configuration for each projects or ...
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158 views

Nvidia card is not recognized by xorg

I have laptop with both discrete (GTX 1050) and integrated graphic cards. lspci gives this: ▶ lspci | grep -E "VGA|3D" 00:02.0 VGA compatible controller: Intel Corporation UHD Graphics 630 (Mobile) ...
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Is there a power manager for text consoles?

I use XFCE on my laptops. When I'm working inside X11, xfce4-power-manager works well, and the system goes to sleep after 15 minutes of inactivity. But when I switch to a Linux text VT (i.e. by ...
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36 views

Default font for generic X11 applications

I am using a FE software (Abaqus) on either Centos 7 Mate or Ubuntu 18.04 LTS Mate. I think the program uses the default X11 font for the menus and the console window, they cannot be controlled from ...
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26 views

Installing Xcompmgr without sudo, admin, or root acess

So basically I need to install and run this thing called Xcompmgr (https://wiki.archlinux.org/index.php/xcompmgr) for my program. However as stated in the title I don't have access to certain commands ...
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1answer
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Why doesn't glxgears show up in xlsclients?

$ glxgears -display :1 No protocol specified Error: couldn't open display :1 $ glxgears -display :0 288 frames in 5.0 seconds = 57.491 FPS 292 frames in 5.0 seconds = 58.308 FPS ... While glxgears ...
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XCompose multiple characters: ¯\_(ツ)_/¯

In my ~/.XCompose, I have this line: <Multi_key> + <3> + <3> : "¯\_(ツ)_/¯" # Shrug. Which sadly, does not do what I want. Since only the first characters of the shrug is used. Can ...
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23 views

Display ID changing without obvious reasons on Ubuntu ARM kernel

I have an application which requires DISPLAY variable to be set. On startup, usually echo $DISPLAY returns :1. Today, without any apparent changes, DISPLAY remained unset after startup and pygame ...
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29 views

X11 Forwarding Terminates Without Error

I am trying to execute an application on a remote Solaris 11 machine using Xming and X11 forwarding, however when attempting to connect with X11 forwarding using plink the connection succeeds but ...
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2answers
174 views

How to uninstall or remove recently-installed packages

I installed the development packages for X11 today and now want to remove them. I do not remember the exact name of the package that I installed. I installed by running apt-get install ... and now ...
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confusions on xinput query-state outputs

When I run xinput query-state on something such as a power button, it returns 247 keys. Shouldn't it just be a single button? I read something online about acpi that explains this, but I am not sure I ...
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26 views

Excluding a Portion of a Monitor from the Desktop

My monitor supports configurable pictute-in-picture. I like to keep my Linux desktop connected to the main mDP input, with a second machine connected via HDMI shown as PIP in the bottom-right corner. ...
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1answer
42 views

X11 and pygame in Crontab

I have a script very similar to the one at the end of the pygame example page, and I want to run it on startup to make the whole thing listen for commands on startup. I ran "crontab -e" and as a first ...
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problems initialing anaconda-navigator

Problems for open anaconda navigator, message Invalid MIT-MAGIC-COOKIE-1 keyqt.qpa.screen: QXcbConnection: Could not connect to display :0.0 Could not connect to any X display.
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1answer
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Virt-viewer fullscreen with 2 monitors in dwm or i3

Is there a way to start virt-viewer -f domain in DWM or i3 so it automatically fills all (2 of) my monitors as it does in gnome? When I try now virt-viewer open both screens on 1 monitor on top of ...