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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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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140 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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102 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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78 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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68 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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71 views

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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119 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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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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231 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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97 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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187 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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23 views

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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398 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
62 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
124 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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77 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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381 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
45 views

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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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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47 views

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 ...
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1answer
588 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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2answers
49 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
44 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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111 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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97 views

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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71 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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59 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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31 views

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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1answer
96 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 ...
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1answer
62 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 ...
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2answers
2k views

annoying message “X11 connection rejected because of wrong authentication” while there is no problem at all

I'm having an annoying problem. When I'm logged in to a specific host via SSH, the message X11 connection rejected because of wrong authentication. occurs three times seemingly random about once ...
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60 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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100 views

File manager of common dialogs like Open or Save

Are those dialogs common to most X windows programs, such as open, save as, etc, something that you can tweak? I am trying to reduce my use of the mouse and I find it hard with the default one (I am ...
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Start emacs client on Windows XServer [duplicate]

I have managed to get X-forwarding running to use xemacs on my local Windows machine. Now I can start xemacs from the ssh terminal to my remote linux machine. This results in xemacs running in a ...
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2answers
707 views

How do I install this script as root in terminal: ./qt-opensource-linux-x64-5.3.2.run?

I need to install qt5 on my system and I can only run it as the normal user. When I try to run it as the "super user" I get this error: root ~ # ./qt-opensource-linux-x64-5.3.2.run No protocol ...
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51 views

Why can't an rpm use xterm?

I made an RPM package that uses Xterm during its install. Whenever I installed the package that I made prior to packing into the RPM, the Xterm part of the install worked correctly. I am curious to ...
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69 views

Copy a file in Nautilus and use it in a shell command line

Suppose I click on a file in Nautilus. How can I copy the full address to the clipboard, and then easily paste it into a shell command that I'm typing in a terminal?
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1answer
124 views

“X-Windows failed to start” after removing iceweasel (apt-get purge iceweasel $$ apt-get autoremove)

I use a Debian-based Kali Linux box. After I removed Iceweasel (apt-get purge iceweasel), everything was fine. The system worked. I then installed a newer version of iceweasel (apt-get update ...
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138 views

Fedora VNC problem- getting a grey screen with three checkboxes

I have set up VNC using this guide, however, despite all my efforts, I can't seem to progress beyond this stage: with three checkboxes saying "Accept Clipboard from Viewers", "Send Clipboard to ...
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142 views

Awesome WM poor font rendering(thin)

I'm using awesome 3.5 on Fedora 20 and the font rendering on the task bar is really bad: https://i.imgur.com/xTSJ65o.png I have Xft.dpi:96 ...
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5answers
2k views

Why does the X Window System use a server?

I never really understood why a window system must have a server. Why do desktop environments, display managers and window managers need xorg-server? Is it only to have a layer of abstraction on top ...
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1answer
36 views

A quit command weaker than windowkill?

Typing in xdotool getwindowfocus windowkill currently terminates the active window and bypasses any safeguards like "would you like to save your work?". Is there a weaker command than windowkill I ...
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50 views

Press Alt+< on a Hungarian keyboard (where < requires AltGr)

I use a Hungarian keyboard layout. To type a less-than sign, I have to press: AltGr+í. By default, the Emacs Meta key is set to Alt, so I think I would have to press all of AltGr, Alt and í at once. ...
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1answer
138 views

Using xcape + xmodmap to change some keys

Using xcape and xmodmap, how does one Make the CAPSLOCK key behave as a SUPER modifier key when pressed in conjunction w/another key. Make the CAPSLOCK key function as the ESCAPE key when pressed ...
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1answer
64 views

exec -t is invalid

I made an rpm that installs a .run file and whenever I run the rpm and the rpm tries to execute the .run file I keep getting the error that exec -t is an invalid option at the following lines of code ...
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60 views

Change default X server to vnc debian

My question is quite simple - I have a Debian Wheezy box running a default X desktop. I have installed tightvncserver but I want to make it my default x server - so that when X starts, instead of ...
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How can I get the same keyboard (dead key) behavior in X as on the virtual consoles? [duplicate]

The problem is described on the Arch linux wiki, but I will repeat it below: I am getting quite frustrated by the handling of the ^ and ~ dead keys on my Belgian Azerty keyboard (vconsole.conf ...
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61 views

Dragging and dropping tabs between browsers

When dragging a tab from Firefox to Chrome/Chromium, or the other way, why is it not accepted by the other browser? One would expect the tab that was dragged over to appear together with the other ...
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1answer
35 views

List of acceptable entries in openbox config (keyboard)

Is there an exhaustive list of the tokens that openbox config xml files recognize for keybindings? e.g. F1 = F1 ... W = Windows C = CTRL I'm specifically interested in how openbox ...
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84 views

Different kinds of copy-paste in Emacs under X

From http://stackoverflow.com/a/65473/156458 Let's be careful with our definitions here An Emacs copy is the command kill-ring-save (usually bound to M-w). A system copy is what you ...