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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What's the Linux equivalent of DWMThumbnail? [on hold]

Or rather how does the gnome-shell launchpad generate live previews of open applications?In windows I simply used DWM -in linux ?
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Cursor position, dragging and resizing windows… with multiple monitors

I was finally able to get my four identically sized screens to work together, with three on one graphics card ( GeForce GTX 750 ) and one on a second card ( GeForce GT 730 ) in X11. It was a really ...
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How do I bind AltGr+key to a symbol?

I want to bind AltGr+W to æ, and some other combinations, how can I do this? I also need AltGr+Shift+W to Æ. I normally use setxkbmap to change the keymap.
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How to recover missing serverauth so user can startx?

I've been using PCLinuxOS. All was OK until th Hard Drive had a bad block. After some fsck repair, from the shell, I tried to startx: xauth: file /home/joe/.serverauth.2052 does not exist. ...
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How to custom-tweak X resolution settings

Or should I rather phrase the question: how to construct a custom mode. The story is: I am a proud owner of an old EIZO monitor (IPS, etc...) which has started to display this flaw of bad lines. I.e. ...
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X Windows special programs: do some of these still exist? Which ones? [duplicate]

I recall that X11 provided a number of "fun" programs accessible via unix. For instance, if you use the command xeyes, an interface will pop up of cartoon-like eyes which follow your cursor ...
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X Windows special programs: do some of these still exist?

I recall that X11 provided a number of "fun" programs accessible via unix. For instance, if you use the command xeyes, an interface will pop up of cartoon-like eyes which follow your cursor ...
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How I can make new pop up windows to appear in the same desktop of their app?

I'm using XFCE and I have the following situation: I open app on desktop #1 --> switch to desktop #2 --> app on desktop 1 opens a pop-up window on desktop #2. How do I change it? How do I make XFCE ...
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How to find out the current (active) XServer DISPLAY number?

I'm using Arch Linux and things are not so easy when you try to discover the current Xorg DISPLAY (not through the env variable). Here is a working example: $ cat /sys/class/tty/tty0/active tty2 ...
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Is possible to have full guest system under host installed via DebootstrapChroot?

My goal is installing Ubuntu 14.04.2 LTS under Debian 7 wheezy with full GNOME Desktop. I know I can use use tools like VirtualBox etc. but it seems like overhead. To be more precise under this Ubuntu ...
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xkbmap remap PrtScr and Insert Keys to Home and Escape

I've been fumbling with xkbmap for a while, and I can't figure out how to remap the Print Screen button to Home. It's as if the us keymap just doesn't mention the PRSC key code at all. I can't use ...
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How to display a digital clock on the monitor on top of everything?

My graphical environment is FVWM2 on OpenBSD. How can we display a digital clock in the top right corner of the screen, on top of everything? So it shouldn't matter if a new window comes up, the ...
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fontconfig availability on major linux systems

I need to install a font on my qt-based app, the function to do so says: Adding application fonts on Unix/X11 platforms without fontconfig is currently not supported. Since I'm a linux newbie ...
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2answers
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How to know whether Wayland or X11 is being used

So I just installed the latest Kali Linux on my laptop which was based on Debian 7 (olstable). I then dist-upgrad-ed the whole thing to Debian 8. I've always wanted Wayland instead of X11, so I ...
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87 views

prevent multi-line paste in bash

I often use ctrl+c to copy text from some gui application and then paste it into my terminal emulator (terminator), using right-mouse-click-menu and paste. Sometimes I forget that the clipboard ...
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Botched file op left a shade of “almost dropped” file, how to remove it?

One picture is worth thousand words, so: I know log out or restart most likely will do the trick. I want something that doesn't require them. Tried - no use: xrefresh xrandr tricks (revert, change ...
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Can I scale my HiDPI laptop display while leaving my external display unchanged?

I have a Chromebook Pixel 2, which has a HiDPI screen. My external monitor has the same resolution in width, but only about half the pixel density. I use Gnome's scaling settings to make things look ...
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242 views

PuTTY, CygwinX, and X11 forwarding connection refused

I am no longer able to forward X11 using KiTTY/PuTTY to CygwinX. I am connecting to an Ubuntu Server 14.10 machine that is correctly configured to allow X11 forwarding. I am able to initiate X11 ...
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19 views

Ignore a bluetooth mouse events

(using Ubuntu 14.04.2, X/Gnome/Unity) I'm trying to have Gnome/X to ignore a given Bluetooth mouse events. The mouse should be paired successfully, though. The reason being that the mouse is used ...
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1answer
19 views

Can you assign arbitrary keybindings in xmonad?

I know how to set up keybindings where you have to hold down one of the keys of type KeyMask. Which are: Alts, Ctrls, Windowskeys. Also, giving 0 as the KeyMask can be used to define single-key ...
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1answer
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How to change the DISPLAY that an X application is running on (in Linux)?

I know that I can specify what display an X client runs on with a command like gedit --display :0 in Linux. I want to move an application to a different display after it has started. How can I do ...
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Have 1920x1200 and 1024x1280 monitors combined to 2944x1200. How to use the 80 unused lines of screen area on the 1024x1280?

The left monitor native resolution is 1920x1200 in landscape mode. The right monitor native resolution is 1280x1024 but rotated to portrait mode, so 1024x1280. Because the mouse would get trapped in ...
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1answer
47 views

Running remote GUI application over SSH as a standard non-admin user [duplicate]

I'm running a HelpDesk for internal call center employees. All employees have headsets in conjunction with their jobs, and I'm working on a script to remotely launch a minimized Mumble session via ...
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Run script after changes in X server geometry

Is there an option to run a given script after the X server geometry is changed (or every invokation of xrandr)?
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In X11, how can I create a custom key combination that maps to PgUp, PgDn, Home, and End?

My keyboard does not have keys for Home, End, Page Up, and Page Down. I would like do the following: Map Shift+Alt+⇦ to Home Map Shift+Alt+⇨ to End Map Shift+Alt+⇧ to Page Up Map ...
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X11: XRaiseWindow and XLowerWindow do the opposite of what is expected. Why? [migrated]

While trying to implement click-to-focus in my custom window manager, I noticed that windows were lowering when I clicked on them, instead of raising. The lines in question looked like this: ...
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Changing dwm keyboard in linux [duplicate]

I can't get dwm to set the keyboard layout. I have tried changing the file /usr/share/xsessions/dwm.desktop. I have changed the line Exec=dwm by Exec=/home/atc/dwm-init with this ...
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How to make the multiuser access to x11vnc in FreeBSD 10.0

I try to set up the multiuser access to KDE via x11vnc using x11vnc -guess I receive an login screen on vncviewer, but after user registration, when display:0 is created, other clients also get ...
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X11 sessions: when a session starts and ends, does `gdm` run a session?

I'm quite confused with X11 sessions. Namely, I don't understand, when an X session starts: I want to programmatically start an X session with my own bob-session program, analogous to gnome-session. ...
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1answer
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Find processes reacting to a given keybinding [duplicate]

Is there a way to know which processes are listening to a given key binding? For example, suppose I want to know which programs will do something when I press Ctrl+g. I guess the X server manages ...
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What is the reason for the apparent lag of a mouse pointer when running a Linux Desktop?

So this question might at first seem a little vague and it's most certainly not trolling or having a dig at Linux. It's always been my observation that most Linux based desktop GUIs seem to have ...
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What are the differences between xdotool and xautomation?

xdotool and xautomation are two command line X11 automation tools. I've used the former for a while and only recently found out about the existence of the latter, and I'm curious to know what someone ...
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1answer
37 views

Map Right Alt to Alt instead of AltGr

I have a Kinesis Advantage keyboard and I'm trying to make it so that my right and left Alt keys do the same thing. Currently the left Alt key works as expected but the right Alt key just allows me to ...
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194 views

What are .serverauth.##### files in my home directory?

The files are .serverauth.##### where ##### is a 5-digit number. I have a handful of these files in my home directory with a broad range of creation dates spanning a couple of years. What are these ...
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1answer
35 views

Turning off part of a monitor

I'm trying to disable the right third of my monitor, since it's broken. I can get less to be displayed using xrandr, but the monitor will then center the displayed stuff, so that's not quite what I ...
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1answer
54 views

How do you make a toggle key using Autokey?

I want to use Autokey to toggle the e key on and off in a program called "xyz". So if I press e, the program thinks I'm holding down e. I press e again, it thinks I released it. How do you do this ...
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1answer
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Difference between server-side and client-side compositing in Xorg?

xcompmgr provides the following option: -s Server-side compositing with hard-edged shadows. From experimentation, I can say that this is much, much faster than the "client side" options. But ...
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Missing KeyPress event

I got new thinkpad and it's missing a ContextMenu key and has PrintScreen key where ContextMenu should have been. I remapped it using xmodmap. The problem is, the key is missing KeyPress events, only ...
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urxvt- play mp3 instead of beep

Does anyone know how to make urxvt play a mp3 file in replacement of a system beep? My PC does not have a pc speaker so I need a way to make terminal notifications go through sound card.
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How can I uniquely identify different GVim instances?

With gnome-terminal, I can use the --role command line argument to make the new terminal window uniquely identifiable by the window manager or other applications, for example: gnome-terminal ...
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1answer
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FVWM: Make xterm stay on top, conditionally

Algorithm: If there is no window currently on top, then make the next new xterm stay on top (layer 6). I got that to work: Module FvwmEvent AddToFunc MyUpdate + I WindowStyle StaysOnTop AddToFunc ...
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1answer
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setxkbmap: Multiple layouts with different variants

Using setxkbmap from a user's .xinitrc, I'd like to configure: German keyboard layout (de) without dead keys (variant nodeadkeys). French keyboard layout (fr) with dead keys (variant basic). So ...
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1answer
37 views

How does one use the setxkbmap -geometry option?

I have a Sun Type7 keyboard on my Debian Linux (/etc/debian_version == 7.8) box, and, since it appears to be much like the Sun type6 I attempted: $ (setxkbmap -model sun6 -layout us -geometry ...
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Modeline for Dell U2415 1920x1200 resolution

I'm trying here to run my secondary display (U2415) on the native resolution 1920x1200. Xrandr unfortunately reports only 1920x1080, which is not satisfactory. $ xrandr Screen 0: minimum 8 x 8, ...
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Java programs steal focus in X11

I run IntelliJ IDEA & some other Java GUI apps on my linux box. Every one of them tends to steal focus when launching up, and doing it in stealthy way. E.g.: I run IDEA, it starts up in ...
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Can I put multiple X windows into a single larger window?

Say my main process spawns a couple windows. I'd like to group them in a session-leader master window (a just-the-frame minidesktop for the window group if you will). What can I do to achieve this? ...
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1answer
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Cannot log in to my Debian Wheezy 7 system

I have a Debian Wheezy 7 installation. When I turn it on it boots to the log in screen normally. However when I type in my username/password and try to login the screen briefly turns off for about one ...
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Xorg configuration hook for unblank screen

Is is possible to execute a command automatically when X comes out of a power saving screen blank? I.e., something that would be triggered when I hit a key/move the mouse to power up the display ...
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ssh with -Y results in “shell-init: error retrieving current directory: getcwd: cannot access parent directories…”

I ran an X app sudo'ed from my normal account, using: mylappy$ ssh -Y me@myhost.com me@myhost.com's password: [me@myhost ~]$ sudo su - [root@myhost ~]# su - me -c 'xauth list' |\ grep `echo ...
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1answer
50 views

Nvidia drivers debian wheezy

I had some problems with my graphics card. I tried following the instructions from here https://wiki.debian.org/NvidiaGraphicsDrivers to install the appropriate drivers. The result is I can't ...