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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XKB: Can I have an eight-level key and have Ctrl participate in selecting it’s levels?

Is there an XKB way to generate a key event, form a normal key combo which includes Ctrl without having the ctrl modifier bit set? Or the same question asked in another way: Can I have an eight-level ...
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Xorg.bin 100% CPU usage after switching TTY [on hold]

I'm on Arch Linux. After I switch between TTYs, Xorg goes berserk and consumes all CPU (actually just two cores, but it says 99%). It's entirely frozen and I have to kill it via SysRq. Here's my ...
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Can I attach a GUI process to a “surrogate X server”?

I have been in a situation where my desktop has crashed and become unresponsive. (In my case it was the Cinnamon DE, and I have yet to try cinnamon --replace from the commandline, BTW) I was using a ...
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how do screenshot / screen grab programs work on POSIX systems running X?

How do screenshot programs such as gnome-screenshot or xfce4-screenshooter get their data? How can they access a stream of the monitor/screen's 2d pixel matrix? Is it possible to stream only a ...
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Set fixed screen resolution for application in Wine

For example, I've application (game) that has only 640x480 resolution. Now I've 2 options: launch it in window-mode, and will has 640x480 size or enable fullscreen and will fill all screen. What I ...
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Applying mouse settings on startup

linux learner here. (Running on a Debian-derived distro) My mouse sensitivity was too high so I was able to change it, but can't seem to get it to apply on startup. I made /etc/init.d/mouse When I ...
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DISPLAY is not properly set in multi-hop ssh with X11 forwarding

I have a NAT machine on AWS which acts as my gateway to several other servers in a private subnet (where I ssh as root). Using xming and putty I am able to connect to the NAT machine and then run an X ...
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77 views

Bash Script - Wget Graphical Download Progress

I'm trying to port this code from wget + zenity to wget + kdialog. The code with zenity: #!/bin/bash # Start wget | zenity # Note the & at the end of the pipe, this allows the script to continue ...
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how to stop the screen from blanking / blacking out?

I have re-installed Debian 7 (Wheezy) after a while. For the first time, I am using the open-free nvidia drivers (not nouveau) and vesafb for virtual consoles. I cannot, for the life of me, stop the ...
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43 views

No xauth data; using fake authentication data for X11 forwarding

Problem: Not able to get to my 389-console (centos 6.6) I have xming setup on my windows 7 laptop. I connect to my kvm server(centos 6.6) using putty and I am able to bring up my virt-manager. This ...
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5answers
299 views

Simple X window manager [closed]

I'm looking for a simple X window manager that : stacks new windows over all others on screen has no window decorations at all (no title, no borders, no min/max buttons) opens all windows in max ...
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1answer
58 views

What is xterm's --enable-double-buffer configure option?

When running xterm's ./configure --help there is an option --enable-double-buffer enable double-buffering I've searched the web and came across the X11 Double Buffer Extension, the Introduction of ...
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1answer
40 views

Which application receives which hotkey? (List X clients which hold key grabs.) [duplicate]

How can I list the X clients which registered for a specific keyboard event (i.e. a key press; a shortcut thing). Those things are called passive key(board) grabs. And the list should contain what ...
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1answer
23 views

Run an X11 program under Cygwin

How do I set the appropriate DISPLAY environment variable? I try to launch idle in cygwin using the following command: idle ...and I get a display error: _tkinter.TclError: no display name and ...
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How to debug what blocks a key sequence in urxvt?

According to this port, i made these configuration in my .Xresources for urxvt: URxvt*keysym.Control-1: \033[27;5;49~ URxvt*keysym.Control-2: \033[27;5;50~ ...
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How to set an X property that is an array of strings?

$ xprop -root _XKB_RULES_NAMES _XKB_RULES_NAMES(STRING) = "evdev", "pc104", "us", "altgr-intl", "" I can see that this property on the root window contains five strings. But I found no way with ...
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1answer
30 views

What is the default GUI run with “startx” without any desktop environment installed?

While playing around with Ubuntu Server, which does not have any kind of desktop environment installed by default, I did "apt-get install startx; startx", which showed me a console in a white box, and ...
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1answer
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extract bounding box dimensions for TrueType font

On Linux, I can easily extract the height / width / ascent / descent dimensions of Xorg fonts via xlsfonts, e.g. $ xlsfonts -ll -fn 9x15 | egrep 'bounds|max' bounds: width left right ...
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1answer
41 views

How to use the '-config' option of `setxkbmap`?

I have a keymap file with this content: xkb_keymap { xkb_keycodes { include "evdev+aliases(qwerty)" }; xkb_types { include "complete+numpad(shift3)" }; xkb_compat { include ...
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1answer
86 views
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Can you run X11 in Emacs?

I'm new to Emacs, and I find it to he very useful, it's almost like a Text UI with tabs and windows and such. And so many applications. Such as IRC, shell, email, and file manager. But there something ...
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1answer
32 views

remote connect to RHEL with X server from Windows

I have remote RHEL 7 server. I have Windows laptop. I want to connect to RHEL with UI (X Server). (So far I only have ssh connection using Putty.) What tool should I use?
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1answer
83 views

Some apps doesn't accept some characters from the «Compose» key

The problem is that the compose key works fine, but some application doesn't accept some characters from it. E.g. I can paste the character ∞ in Emacs (Compose+8+8), but this won't work in FireFox, ...
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1answer
21 views

Mapping key bindings

Background: I got an Acer Chromebook yesterday and I am running Ubuntu on it (I am also somewhat new to Linux). The keyboard does not have dedicated Home and End buttons since in ChromeOS there are ...
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1answer
34 views

How to kill app that captures keyboard input for killing the app?

I'm using the i3wm. When I run Open Arena I can't force kill it with Mod+Shift+Q like I can with other apps, I can't restart the wm or anything. Open Arena is stealing the keyboard input. So ...
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1answer
33 views

How to unload X server / switch to command line and back on the fly

I often need UI to configure my server, even to run Eclipse and work there, but in "production" i want to have only mandatory things running - just command-line and no UI. If I'm running UI on Linux ...
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1answer
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Recent change causes Shift+Space to do nothing

For years now on Ubuntu-derivatives (right now on 12.04 derivative), I've been able to type all-caps holding the Shift key while typing, not having to remove it for when I need to hit Space. For the ...
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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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2answers
55 views

Find out which application listens to specific key bindings? [duplicate]

Is there an application to know which key is bound by which process and therefore not usable in another application?
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1answer
34 views

i3 - How can I change the mod key to AltGr and disable it for “normal” input

I'd like to change the mod key to "AltGr" or "the right Alt key. Furthermore I'd like to disable the new mod key for any other input in Linux. So when I am writing text in my text editor I don't want ...
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1answer
43 views

Simulate PrintScreen key press

I want to write a script that changes the window focus, and sends keyboard commands, such as print screen, and arrow keys, to the system. As in I need print screen to capture my desktop, not the ...
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1answer
41 views

Setup of touchscreen in Linux

recently I got a touchscreen ELO ts-1515, I'm using Gentoo in a machine with an Intel Atom processor, and my desktop manager is LXDE, I get install X11 server and drivers without any problem, the ...
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Weird X11 behaviour after resume from suspend

I experience the following problem with xfig, but I don't believe that it is a xfig problem: In xfig, I draw a text and then I can move it around with the mouse (after going into move-mode). As I ...
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1answer
66 views

Changing the mouse pointer in Mate

I am using Fedora 20 with the Mate desktop. I sometimes give talks, using LibreOffice Impress for a slide show, with a laser to point out details on the screen. I will be giving a talk where the ...
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1answer
36 views

Run an X11 command from a different console

On my Ubuntu 14.04 virtual machine compiz freezes often. I usually swtich to tty1 and kill the process, then switch back to tty7 and, if I can see a terminal window, I run compiz --replace & in ...
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1answer
32 views

Starting Arduino IDE as root fails on Archlinux with KDE

I need to run the IDE as root to get access to the serial port. The command is ./arduino from inside the package folder. On Fedora this works fine, but on Archlinux the pocess chrashes with the ...
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53 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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1answer
52 views

unlisted screen resolution

on my new computer I have 2 screens connected on the igpu of a i7 processor, 1 using hdmi. the other using dvi. Both screens are the same but 1 has a wrong resolution inside X, and it can't be ...
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2answers
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Reasons to install X Windows on a Linux server

Is there any advantage to installing X on a server, eg a db or web server? I'm thinking it would just add mem/cpu overhead. Is it more normal not to install it on a server?
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1answer
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Where are default compose-key bindings stored?

I recently discovered the compose key. It's wonderful to type Compose-> and get a Unicode right-arrow (→). I know I can add my own, but where can I find a complete chart of the defaults? The ...
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On-screen fonts appear tiny on OpenBSD 5.5

I chose the default installation of OpenBSD 5.5. My monitor's brand is Samsung 27-inch 850 series LED. It's in full high-definition, 1920x1080. After I type my login username and password, I am ...
3
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1answer
76 views

Using X-Windows from Windows 8.1

I have a Linux box that I don't have physical access to, but I do have SSH access. I'd like to know is if there is something similar to SSH or Telnet that would allow me to use Gnome or KDE instead of ...
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36 views

Auto-Complete and Shortcut Keys for Linux

I'm looking for something that will allow me to type anywhere, on anything and for this software to auto-complete. I used FastKeys on Windows which would also allow you to do custom shortcuts to open ...
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1answer
29 views

Prognosis for disowned X11 program. Can I un-disown it?

I have a disowned X11 program, running under my user account. I started it during an SSH session that was disconnected due to a network problem. I'd like to continue working with it, if possible. Can ...
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36 views

Start X11vnc on boot at SLIM login window

Debian 7.7 Wheezy, xorg, SLIM, i3 I'm unable to have x11vnc -usepw -forever started with SLIM, to offer a vnc connection on boot, as I do not have a monitor attached to the computer. I tried to add ...
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remote X display cannot open

I am connecting from Windows with Putty and XLaunch to a Debian machine version 7.6, I have tried it on other machines and it worked, the problem is the Debian machine itself, not the configuration. I ...
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1answer
37 views

Start aplication in local desktop from remote SSH [duplicate]

I have an issue for which the work around would be to start the application in X instead of headless. How do I make sure the app is executed on the desktop, even if I run the command from a remote ssh ...
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1answer
26 views

How to setup a display environment?

I'm using MNE (a program to analyse data) in Linux CentOS 6. I upgraded my system to Linux CentOS 7 and after that I was unable to run MNE GUI. Whenever I started the program I'd get the following ...
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Remap Keys for ALL layouts

I put xmodmap -e 'keycode 97 = backslash' into a script that is executed at startup. My hardware is a Japanese keyboard, so it lacks some keys and has some extra ones and I am trying remap some of the ...
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51 views

When was my machine last touched?

It is occasionally useful for me to know when my machine (Debian wheezy) was last touched. To be precise, I mean the more recent of the times I typed on the keyboard or moved the mouse. When I ...
3
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1answer
37 views

Application that allows to show clipboard contents and its MIME type?

I'm searching for an application that can show me the details of the content of the clipboard. When copying some data into the clipboard, the data is associated with a specific MIME type. Normal text ...