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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Anacron job complains “Gtk-WARNING **: cannot open display”

I'm trying to make a simple weekly Anacron job that backs up my computer if I click yes on the dialog. The script I wrote works fine if run manually, but when Anacron runs it, nothing happens and I ...
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Debian: How to resolve Xserver failure

I keep finding similar posts online but I can't really use the solutions in my case. in my /etc/bash.bashrc file, I have the following code placed at the very bottom: if [ -e /tmp/.X0-lock ]; then ...
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Gallery of installed fonts

I want to view the fonts that are installed on my system. Specifically, I want the client-side (fontconfig) fonts, not the old-style X11 bitmap fonts. I guess what I'm looking for would be called a ...
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688 views

How can I set mouse sensitivity, not just mouse acceleration?

I can't find a single desktop environment that supports setting both mouse acceleration AND mouse sensitivity. I don't want any mouse acceleration, but I want to increase the speed of my mouse. That ...
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1answer
302 views

Find X.org pointer grab owner

I have an application that seems to have grabbed the mouse (I can move it but can't click anywhere), is there a way to find which app owns the X.org mouse grab? The shortcut given here to release the ...
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771 views

Send a command from the console to a running X server

Is it possible to send a command from the console, say tty1, to the terminal currently occupied with X (in my case tty7 as I use Debian), to tell for example mplayer to play a movie? Edit - made a ...
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Keeping copies of the X log file on Debian

I recently tried to replace my Nvidia driver with the Nouveau driver for my Nvidia card, (see Switching from Nvidia proprietary driver to Nouveau driver for Nvidia card on Debian wheezy). ...
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1answer
616 views

X client forwarded over SSH “cannot open display: localhost:11.0”

I have enabled X forwarding on remote machine where SSH server is running: # grep -i forward /etc/ssh/sshd_config X11Forwarding yes # On local machine, I have started SSH client with -X flag ...
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Is there a command such as xwininfo, xdpyinfo, xprop, or xlsclient that will tell me what font an X client window is using?

I'm trying to find a command that will report what font a given X window is configured to use. Does such a command exist? Looking through these tools I did not see an option that would give me this: ...
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1answer
260 views

Keyboard shortcut to copy current command from terminal to clipboard [duplicate]

Is there any way to copy current command (line typed in bash prompt) in terminal to X-clipboard without involving a mouse?
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how to assign another modifier to Alt key for X11?

Aim: I would like to assign Alt to CapsLock-key, and Meta to Alt-key. But in such way, Alt-key would no longer be recognized as Alt, and CapsLock-key would no longer be recognized as CapsLock. ...
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1answer
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How to run startx as non-root?

Recently, I switched from Ubuntu to Arch Linux. I've installed X11 as my Window System and KDE as my Desktop Environment. I've separate partition for /home, /var, / and /boot and they all mount at ...
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If you SSH into another computer, how to access other X displays?

This is a query based on personal use. A troll in our local network had downloaded Crikey, the key-event simulator. He used it to simulate events on other computers, leading to unwanted things. For ...
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1answer
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What are the purposes of the different types of XWindows fonts?

In my /usr/share/fonts/ I have four sub-directories categorizing types of fonts: cmap truetype type1 X11 The command fc-list produces a list of them. Are these different categories for specific ...
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1answer
242 views

Why doesn't dzen2 work when invoked via at?

dzen2 is a notification utility of sorts. This command will make a notification that says "Hi" appear on the screen: echo Hi | dzen2 -p Debian's at is a utility that schedules events to occur in ...
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Doubts about creating a .Xresources file.

I want to customize the look and feel of my xterm and have read that the way to do it is creating a .Xresources file and saving there the desired configuration. I've also learned that this file can ...
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2answers
373 views

Is xinitrc executed when logging in?

I have a ~/.xinitrc with the following content xrdb -merge $HOME/.Xdefaults this xinitrc is basically useless because it's not loaded when the user logs in, I don't think that I'm doing something ...
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1answer
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Udev rules involving X11 don't run on startup

I have some udev rules written to run when I connect certain usb devices. For example, I change pointer velocity for certain mice, and change xmodmaps for particular keyboards. The scripts work well ...
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Cinnamon failed: desktop only, no panel, no dialog frame

I am using Linux Mint 14 (MATE) with Cinnamon installed. Cinnamon failed when I tried to delete an item on the menu with menu editor. The system froze, so I logged out by pressing Ctrl+Alt+Delete. ...
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Is it possible to keep a vnc server alive after log out?

I am using OpenSUSE and I have created a script that launches at startup the x11vnc server. But when the user logs out x11vnc is killed. I want it to start again automatically. Here the script I ...
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1answer
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Mint 12: synaptic package manager error

Yesterday I had the same issue, I solved it by running sudo synaptic But today I don't know what's happening, if I run gksu synaptic or gksudo synaptic they don't do anything. If I go to root and ...
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1answer
300 views

Remap Caps_Lock to Control in Solaris

I'm having the hardest time trying to understand how xmodmap works. I want to remap the Caps Lock key to Control. In an attempt to emaulate the answers shown here, I created the file .xmodmaprc: ...
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How to set up screen resolution permanently

I just installed Fedora 19 on a VirtualBox and when I started it for the first time it only allowed the screen resolution 1024x768 After some research I managed to install the guest additions and I ...
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1answer
856 views

Remote desktop (KDE) over SSH reverse tunnel

I have a reverse ssh tunnel through a middleman server set up and working. I'm running Kubuntu 12.04 here and on the remote machine. I want to open a remote desktop session. Until now I've been ...