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 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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1k views

A real non-“better touch tools” solution for select-to-copy on Mac OS X

I recently moved to Mac. I am missing my X11 copy-paste style. I can't find a way to exactly emulate X11 behavior "select-to-copy", "middle-click-to-paste" globally on Mac OS X. I am aware that this ...
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153 views

Disabling PRIMARY or cut buffer “copy on select”

I've been fairly happily using Ctrl-C/Ctrl-V, with the occasional Ctrl-Ins/Shift-Ins here and there on Linux for quite some time, but I've recently switched over to urxvt and am finding the clipboard ...
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240 views

xinitrc: starting xterm with tmux causes all windows to share same geometry

I have xterm with tmux open upon startup of X11 with the following line in my xinitrc file: xterm -e tmux & However the -e tmux causes all windows to assume the geometry of the first -geometry ...
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407 views

Pulseaudio/X permission other user/SSH

My user user1 is running a graphical X session with pulse configured per-user. I need to run a graphical program that uses audio with user2. If I do su user2; program program doesn't start and I ...
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12 views

Prevent GIMP from raising & activating new windows/tabs

I'm using XSane to scan images in to GIMP 2.8.16. With the scan settings, this unfortunately takes a few minutes per scan. I'm using GIMP's tabbed window mode. It's nice that I can work on other ...
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21 views

Where does Linux vncserver (Xvnc) get the list of geometry possiblities

I have looked through through parts of the code, and the places obvious to me, but I have not found the place that I can add legal geometries for a vncserver that I can set using xrandr. I have tried ...
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97 views

How can I remap mouse buttons to modifier keys?

I have a fairly standard Logitech M510 wireless mouse with the three regular buttons, forward and back buttons, and scrolling and sidescrolling. The forward and back buttons are worse than useless ...
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24 views

How to remap “dead_hook” in Emacs and Vim?

I would like to remap some common symbols like ( and ) to the base line of my keyboard combining Alt Gr with other keys like j or k. I can remap Alt Gr+k to ) because that combination prints ĸ. The ...
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22 views

Always insert the diacritic after a dead key

A followup question on this subject, perhaps any of you can help with that too. In Windows the layout for US International does/did this for me; Typing I ' d yields I'd (with no extra jams on the ...
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37 views

How to obtain mouse events from the kernel when X is active?

When switching to a virtual terminal on my system, The kernel successfully delivers mouse events to a generic input event interface -/dev/input/event6 in my case- as well as legacy interfaces mouse1 ...
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173 views

EDID - help to detect proper DPI and refresh rate values

I just tried to extract EDID file data with read-edid util; The thing is the output shows : $sudo get-edid | decode-edid ... Manufacturer: AUO Model 20ec Serial Number 0 Made week 0 of 2013 EDID ...
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65 views

Patching X11 to remove SELECTION clipboard

How would I patch the X11 source to disable or remove the SELECTION clipboard?
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127 views

X11 forwarding but open links locally

I have X forwarding between two machines. I doubt it matters, but the local machine is Windows running PuTTY and Xming. Is there any way that I can click a web link on a remote application and have ...
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37 views

Modifier keys in compose sequence

How is the syntax for .XCompose for sequences containing modifier keys? The manpage says (! MODIFIER ), but I did not manage to make it work. How is, e. g. the syntax for, let's say first AltGr and a, ...
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185 views

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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89 views

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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85 views

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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62 views

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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286 views

Increase the number of lines scrolled by a mouse wheel tick, everywhere

When I use the mouse wheel, I want to be able to configure it to scroll by multiple lines at a time, e.g. each tick would scroll 5 lines. In Windows you can increase or decrease the number of lines ...
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217 views

Xmove is unable to connect to X11 server via SSH X forwarding

I have a LAN where a windows machine running Cygwin (XWin server) is used to connect to a Linux host via SSH with trusted X forwarding. I connect with $ ssh -Y user@linuxhost without any issues and ...
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61 views

How to show the status of all modifier keys in X11?

I have a remote connection through NX client (Remmina) from my local box (Ubuntu 12.04) onto a remote Linux box (CentOS 5.3) with no root privilege, and it only has a strictly restricted internet ...
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311 views

Xorg: set provider source output in xorg.conf

I've configured quad screen with xrandr commands: xrandr --setprovideroutputsource 1 0 xrandr --output DVI-0 --auto --right-of DVI-1 xrandr --output DVI-1-2 --auto --left-of DVI-1 xrandr --output ...
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134 views

Dead keys maps missing in certain programs only

I cannot use ^ with certain programs. I'm working in KDE on OpenSUSE 13.1 64b. ^ works as a dead key in Konsole, Firefox, Chrome, Gvim. ^ has no effect (pressing ^ then a just inserts a) in Xterm, ...
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141 views

how to use xrandr to mirror just a part of my main screen?

I want to make a mirror of just a part of my main screen to another monitor with different resolution. So it will be necessary to crop the desired area and apply a transformation to fit the screen ...
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114 views

How to use a separated user with GUI on OpenBSD?

A webbrowser is a GREAT attack vector since people use it to access the "dangerous" internet. Very bad things can come in through to the desktop. So in general for a desktop, we can do the ...
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139 views

Keyboard shortcut for horizontal scrolling

Is there a utility I could use to scroll the active window horizontally using the keyboard?
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436 views

Is there any way to resize scale application GUI window?

Is there any way to run an application scaling its GUI window? (Well, I'm using MATE but hope for universal solution). For example, up scale small window of an old game running under wine on ...
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1k views

.Xauthority file is empty

I have been trying to ssh -X to my cluster running OpenSUSE 11.2. It used to work well for me. But now I get this message: X11 connection rejected because of wrong authentication. Failed to open the ...
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65 views

Typing punctuation adds an accent to the preceding letter after my laptop is docked for a few minutes

I am running Manjaro XFCE. Everything worked like a charm for months now, but 2 weeks ago the keyboard configuration from my external keyboard seems damaged. Writing on my laptop itself works ...
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947 views

Unable to get NVidia 9600GT working with Kubuntu 14.04

Problem: Nvidia drivers are not loading Hardware: Dell T110 Graphics Card root@madeye:~# lspci | grep VGA 02:00.0 VGA compatible controller: NVIDIA Corporation G96 [GeForce 9500 GT] (rev a1) ...
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343 views

Remapping Left Control <LCTL> in xkb changes behavior of Alt + Left Shift

For some reason pressing any alt key (including <MENU>) together with <LFSH> toggles "Switch windows of an application". This can be turned off by commenting out key <LCTL> { [ ...
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551 views

Using nvidia-settings over ssh

Now the new nvidia-driver has implemented CoolBits for the newer graphics cards I'm attempting to control fan/clock speed over ssh. When attempting to run anything with nvidia-settings via ssh I get ...
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602 views

XRandR crops displayed area on certain multi-monitor configurations

I have total of four monitors. One (1680x1050) is connected to integrated Intel display adapter, and three (1440x900 and two 1920x1080) are connected to dedicated ATI display adapter. With certain ...
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103 views

Why does selecting text only “copy” it (as in copy and paste) circumstantially?

One of the most user-friendly features of Linux is that highlighting or selecting text will automatically copy it so that it can be pasted upon a middle- click. However, this can also be a point of ...
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463 views

How to configure external USB touchpad for a laptop

I have a laptop that, obviously, comes with a touchpad and a keyboard. However, I have an USB keyboard with integrated touchpad that better suits my needs. I use Ubuntu 13.10 and I cannot find how to ...
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437 views

Xorg Setting checking from Command Line

How do I determined, whether Xorg is using Xinerama, DDC and Reduced Blanking ?? Just adding few options in Xorg.conf is sufficient ? If I have to check from command-line, then how can I check ...
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81 views

Make Compose not compose after certain key presses

On my laptop, I use the Win as a modifier. With the Fn key pressed, the key sends a different keysym and I use that as a Compose key. keycode 133 = Hyper_L keycode 134 = Multi_key add mod4 = Hyper_L ...
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173 views

How to set up the login screen to ask for keyboard layout

I just upgraded my distro, now it no longer has a menu to set the keyboard layout in the login screen (gdm). Previously a user could select there icon, then change the keyboard layout (it would also ...
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584 views

Running (X) Xfce4 in Debian chroot

I was trying to start Xfce4 in a chroot. The problem is that Xfce4 starts, shows default the UI but the USB keyboard and mouse are not working. My chroot script: #!/bin/bash mount --bind /dev ...
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392 views

How to run two virtual X11 screens on a single monitor?

I would like to be able to emulate a dual monitor set up using a single physical display. Ideally, X11 would be able to treat each left/right half of the monitor as a separate display. Is this ...
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199 views

Change Zombie window X properties from Iconic state to Normal state

Mathematica sets its Documentation Center as an iconic window according to xprop. I think this state might be the culprit for making this window a zombie window, not focusable by the mouse on my ...
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454 views

Use Emulated Scrollwheel Instead of Real One X11

So I've got this Kensington trackball that ships with a pretty horrible scrollwheel/touchring doohicky, and only two physical buttons. I'd like to disable the touchscroll entirely, enable 3 button ...
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1k views

Security of xhost (local) and sudo xauthority forwarding

Context: launch a GUI application as a linux service. I considered making a headless daemon with a GUI front-end but there is too much code involved to do it now. This service must start on user ...
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32 views

Is there a terminal emulator which remembers the output from its last run?

While modern desktop environments usually start all the applications which were open in the previous session and some terminal emulators may even open as many tabs as before, I've never seen a ...
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117 views

Cygwin/X DISPLAY number no longer :0?

I use Cygwin/X to ssh into a linux computer cluster using a Windows (10) pc. Yesterday I was in the middle of an ssh session using X11 forwarding. Suddenly one of the X windows open started to hang ...
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24 views

Render everything in two colours

Is it possible to recolour everything on the screen, every application, web pages, menus, everything, in two colours (with intermediate shades, i.e. monochromatic)? Some document viewers support ...
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49 views

Cannot run evilvte (VTE terminal emulator) as user - except via SSH

I have compiled evilvte from source, on an old Nokia N810 tablet. When I try to run it as user, it opens and then immediately closes. If I try as su root it works fine. I can also run run it as user ...
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23 views

Make CapsLock switch between text input and navigation

I'd prefer CapsLock to switch between text and navigation modes rather than lowercase and uppercase modes, much like NumLock swaps numbers and navigation, on as low a level as possible. For example, ...
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93 views

Can I scroll background window without giving it focus in i3wm

I have disabled accidental touchpad click to activate background windows. However, when I move two fingers or my palm along the touchpad, this generates wheel events and they activate whichever window ...