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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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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3answers
7k views

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 ...
6
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1answer
490 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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1answer
29 views

Graphics glitch fix? Botched file op left a shade of “almost drag-n-dropped” file, how to remove?

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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1answer
662 views

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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1answer
14k 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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1answer
46 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
316 views

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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67 views

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
340 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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47 views

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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70 views

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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0answers
11 views

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 /home/atc/dwm-...
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0answers
93 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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1answer
31 views

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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195 views

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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229 views

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
519 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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2answers
1k 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 ...
2
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1answer
85 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 ...
2
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1answer
376 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
125 views

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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3answers
654 views

Modified keyboard layout under VirtualBox

I'm running VirtualBox on Linux. (The virtualbox 4.3.10 package on Ubuntu 14.04 if it matters, but I'd prefer a version-agnostic solution.) I have a tweaked keyboard layout on the host (under X11), ...
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0answers
189 views

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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94 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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1answer
102 views

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 --role=...
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1answer
171 views

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
247 views

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
225 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 'sun(...
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0answers
288 views

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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0answers
97 views

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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1answer
405 views

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
174 views

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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69 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 ...
2
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1answer
4k views

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 ...
2
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1answer
86 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 ...
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2answers
4k views

What is `/tmp/.X11-unix/`?

I asked Google the same question and didn't like the results I got. What is /tmp/.X11-unix/?
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0answers
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How to keep displays “set” and not vanishing when screenblanking or turned off?

I have thee screens and am finding it very annoying and distracting to find (1) my X settings have changed to make the leftmost Primary and not aligned right, and (2) all the windows moved onto the ...
2
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1answer
328 views

How to set up XKB to work with 3 modifier keys and 2 switchable layouts?

Consider the following XKB layout: xkb_keymap { xkb_keycodes { <ESC> = 9; <FK01> = 67; <FK02> = 68; <FK03> = 69; <FK04> = 70; <FK05> = 71; <FK06&...
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1answer
589 views

How configure properly vncserver in Red Hat Enterprise Linux Server release 6.5

I'm trying to start vncserver in a Red Hat Enterprise Linux Server release 6.5 with an user created for that, and when I type vncserver I got this: WARNING: The first attempt to start Xvnc failed, ...
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1answer
59 views

build X11R7.7 from sources - in which order

Is there an automatic way to understand the order in which individual libraries of the X11R7.7 package should be built when I want to build all of util, lib and xcb?
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1answer
221 views

My shift/ctrl and numlock keys stopped working

My ctrl and right-shift keys are not responding, though they still work in a VMware window. Numlock doesn't work. A held-down key does not repeat. clicking in a field in another window does not make ...
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63 views

Cannot resize windows remoting-in through X11VNC?

As title says, I am remoting on to a Linux box (CentOS 6) using X11VNC. However, I cannot resize any windows manually by hovering over the frame, because the frame resize cursor does not appear. ...
6
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1answer
97 views

Copy to both X11 clipboards from vim

As far as I can see, with VIM I can choose between set clipboard=unnamed - yank to X11's primary selection buffer (middle-mouse button paste) and set clipboard=unnamedplus - yank to to X11's ...
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0answers
140 views

General way of debugging vmware mouse issues in X11

I run a virtual vmware archlinux installation, and constantly have problems with mouse grab/ungrab. At some point it was fixed by commenting out pointer lines in 10-evdev config, but on every update ...
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1answer
158 views

Start a single color full screen from the terminal

For testing displays, I need to show a single color fullscreen, and quickly switch from one to the next color. Can this be done from the terminal? Something like this: DISPLAY=:0 color #ff0000
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1answer
73 views

Xmodmap remapping Caps, but still triggering Caps Lock

Im using CentOS 6.5 workstation, pretty standard config, with normal dell keyboard, EN/US lang and keyboard layout. I have the following in the .Xmodmap keycode 66 = Control_L clear Lock add Control =...
2
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1answer
360 views

Remapping Caps Lock to Compose

Because I now and then need to use scandinavian letters despite using US Dvorak as my layout, I would like to use Caps Lock as a compose key. (I don't need Caps Lock at all, I'm not a forum troll) ...
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1answer
318 views

How Are Keys or Keycodes Mapped to X Key Symbols?

I am trying to map a function key combination to an XF86 key symbol. The key combination is Fn+F1, which I was able to use showkey to get the raw keycode for. jason@io ~ $ showkey kb mode was RAW [ ...
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2answers
138 views

What's the closest you can get to rebooting without killing all running processes?

How can I get the effect of rebooting on refreshing the system (freeing resources and reinitialising them) without killing most of the things I have running? Could I unload and reload kernel modules? ...