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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Windows->RHEL->RHEL X11 Forwarding?

I know this question might have been asked a lot but couldn't find anything that worked. From a windows machine 'A' I can only SSH into Linux server 'B' from where I can SSH into another Linux server ...
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1answer
93 views

No windows frames on VNC screen

I am trying to configure good virtual desktop on my headless headless Ubuntu 14.04 server. Unfortunately, I see the following picture when open remote screen: I.e. windows have no frames and ...
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106 views

how to bind commands like “Ctrl+C” to one-key (for example “F5”)?

I use some commands very frequently. Some of them are several keys combinations. And my fingers are not quite satisfied with them. So it looks usable for me to bind them to one-key commands. For ...
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33 views

output cut on the projector because laptop resolution is 16:9 and projector is lower

My query is same/similar to Setting KDE to crop the laptop's screen to match external VGA device's ratio In my case my screen resolution is 1366 x 768 which is non-standard but still ...
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15 views

Editing missing characters in some charmap/keyboard

I use the abnt2 layout on my american keyboard, but the backslash key \ is missing. How can I remap some glyph to an unused key or combination (eg. CtrlAltE or AltGrE)? I knows only that ...
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1answer
41 views

Autostart under random WM?

I'm a long-time DE user, however there are some circumstances under which I prefer to use different tiling-based WMs instead of GNOME or KDE (I use GNOME mostly for last year or so). I have a ...
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156 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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2answers
55 views

Making an Extra Copy and Paste Script

How can I make a script which duplicates Ctrl + C and Ctrl + V (aside from the actual keybinding part, which I know already I can use xbindkeys for)? So, for example, how could I make bash functions ...
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1answer
70 views

System creates extra shift/alt/control keypresses

OK, so this is strange. I recently bought a HP Pavilion ab153nr laptop and installed UbuntuMate 15.10 on it. While setting everything up, I noticed that the screensaver would occasionally stop ...
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1answer
455 views

root needed to launch X11 application

I'm building a Qt application using QML technologie. QML use OpenGL. The computer running the build is a CentOS 6.7, with intel GPU. I'm using it only on SSH, and I use XMing (or VcxSrv sometimes) ...
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1answer
142 views

Remap right click button

I have a mouse with a unusual mapping. I wish to change the right click button from B3 to B2, so far I'm using xbindkeys and I've managed to remap the back and forward buttons, but no luck with right ...
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1answer
183 views

How to make openbox display window in certain area only

I have a display with a native resolution of 1024X600. I set it to 1024X724, because some window can't be display in the native resolution. I have to use the mouse to do the panning. But for the ...
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1answer
66 views

Easy way of mapping Ctrl+Shift+Alt+J to Down

I have an IDE called Intellij that I'm using on Linux to code Java applications with. I have the editor mapped to VIM keys, using the IdeaVim plugin. What I don't like is when I get a popup dialog ...
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3answers
82 views

Processes group (session) of GUI processes

According to what I know, the shell and its child processes are in the same session which have the same (controlling) terminal. I read that they are interactive processes because they have the same ...
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0answers
57 views

RedHat5 stop copy on select

At work do we use RHEL5, with Gnome 2.28.2, we are also required to do development work in RHEL5. RHEL5 have this strange feature that it will replace the clipboard with anything i highlight. This is ...
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1answer
64 views

How do end-user processes, desktop environment and windows manager communicate with each other?

In Linux, each process communicates with each other through kernel. As far as I know, X11 is a server which means it is a process. I read somewhere (cannot remember the source, will provide later) ...
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51 views

Can't change mouse speed in fedora

I have cinnamon installed in fedora. I also have GNOME desktop. I switched to GNOME and all of a sudden my mouse got a lot faster. I then went back into cinnamon and went to the control panel to ...
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42 views

How can X11 shortkeys be captured by a Python program?

I want to have a little Python program running in the background that monitors for certain shortkey presses (e.g. Ctrl Alt direction key). The idea is that these shortkeys can trigger various actions. ...
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1answer
67 views

X11 Forwarding Issues - Wrong Authentication

I am trying to configure X11 forwarding through SSH on my home server. The server is running Debian Jessie (hostname moonraker) in a headless configuration. My client is running OS X 10.10. I have ...
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34 views

Launching GUI on OS X (MBA) from a remote Linux machine?

My problem is quite similar to the one discussed here. But trying the same thing is not fixing it. I have XQuartz installed on my MBA. When I ssh -X username@server.remote.intranet to a remote server ...
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14 views

Get correct DISPLAY id per user [duplicate]

How can a user script launched from a system daemon with sudo -u obtain a proper value of DISPLAY so that it can display things on an X session of the user it's running as, preferably the DISPLAY id ...
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26 views

How to stop programs from opening on secondary monitor by default?

I have two monitors -- one DVI and one HDMI -- connected through a GTX 970. Some programs, windows, and games will open by default on my secondary DVI monitor unless I click or otherwise have a window ...
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1answer
70 views

How can I startx and have it run a script remotely via SSH?

I have the following script, which starts X and launches a graphical program: #!/bin/sh #startGraphics.sh #Starts X and runs the graphics program xinit /opt/common/graphics/bin/launchGraphics.sh ...
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2answers
3k views

Starting X applications from the terminal and the warnings that follow

I am trying to get to grips with using the terminal for most of my computing activities. One thing that has been bothering me for a while is launching X applications from the terminal. It seems like ...
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3answers
61 views

Open new graphic terminal via ssh

I would like to log in from machine A to machine B -- and regardless or whether anyone is logged in on B* open a new graphical terminal on :1**. To further clarify: This is a lab situation with one ...
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2answers
491 views

cluster-ssh: specify terminal font

In my cssh config file, I have: terminal_font=6x13 this default font is too small for me. man cssh says, I can specify other font size with the -f argument, while using "standard X font ...
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42 views

How to steal keystrokes instead of just monitoring them?

I am writing a program that allows controlling the mouse through keyboard. The user is supposed to assign a hotkey to start the program, which runs in the background without GUI or CLI. The keyboard ...
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216 views

How tell xrandr to let my mouse move between monitors?

I have both an internal and external display which I'd like to pass my cursor over. When I start the computer with the external connected, my display manager starts with the wrong DPI, and I have to ...
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1answer
93 views

Launcher on top of X11 as a window manager

Im on the process of building a Launcher for other applications, on top of X11. The requirements are the following: The launcher must start with the system (The launcher can be seen as a fullscreen ...
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1answer
40 views

How do I *un*set an option in `xkbmap`?

I would like to disable the Ctrl-Alt-Backspace combination using a command line tool, without root priviliges. I know I can use setxkbmap to enable “zapping” with the option terminate:ctrl_alt_bksp. ...
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1answer
101 views

SSH X forwarding enabled, but no forwarding

In my SSH config file, X forwarding is enabled, and I run ssh with the -X parameter. It gives me first error below but connects in the end. Failed to add the host to the list of known hosts ...
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1answer
30 views

Forwarding Output of server which doesnt have xserver to my x client

I have a digital ocean server which doesnt contain xorg is that possible that i can connect through ssh but for example editing etc output to my own editor or open links through in my browser etc.
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59 views

Change HDMI resolution on-the-fly without GDM

I just disabled the GDM service to use QT programs and mplayer output. And I need to change HDMI output resolution of my Angstrom distro and it should be on-the-fly. That means basically doing this ...
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31 views

X11 Server Cap Lock and scrolling problems on CentOS 6

I am having problems with the cap locks key, when using vncviewer to remote on to a CentOS box running X11 v0.9.13-8. I cannot upgrade the x11 as i'm stuck on CentOS 6. The problem is that the Cap ...
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1answer
227 views

aticonfig needs a xorg.conf I have none

I run a dual seat setup with 2 GPUs. Lightdm launches the 2 X servers, without any need for a xorg.conf Now aticonfig, because I use fglrx drivers, tells me : No layout section was found in the file: ...
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1answer
133 views

configuring setxkbmap for a single user/debugging xkbmap changes

I'm trying to do something similar to what this user asked, storing my keyboard layout. My first thought was to use .bashrc, but I turned to .bash_profile after realizing that I only need it set once ...
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29 views

Apply keyboard buttons combination on release

I installed LMDE2 Mate, with repos pointing on Debian testing. In Pycharm(Jetbrains IDE) I have to press Shift+Alt+E in order to call python console. My problem is, when I am pressing Shift+Alt ...
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2answers
210 views

Is it possible to tweak input from touchpad?

I use a MS keyboard on my Debian machine. The problem is that MS does not ship configuration software for us and touchpad's default scrolling directions are reversed (it uses natural scrolling). I ...
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1answer
310 views

Unable to start gedit from terminal

I use remote desktop connection & XRDP to remote to my Ubuntu 14.04 VM which is running Xfce. I can start any program from the Application Menu (diffuse, meld, gedit) but when I try to run those ...
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2answers
36 views

Inverting FN keys

My notebook is equipped with one of those fancy multimedia keyboards where you have to hold the FN key in order to use the classic function keys (F1-F12). Is it possible to invert this behaviour in ...
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2answers
48 views

How to forward firefox graphics from remote to local system?

I have installed CentOS7 in virtualbox through vagrant. Both guest and host operating system is CentOS7. Guest operating system is minimum installation of centos7 with no graphics. On both system I ...
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1answer
183 views

Displaying X programs on remote systems

I have Ubuntu 14.04 and Fedora 20 as a test environment. I am trying to send X programs from Fedora to Ubuntu through an SSH session. My setup is as follows: On Ubuntu ran: Xhost +IP Address of ...
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1answer
29 views

Is it safe to run GPG tools in x11?

Given the relative (anyone with my present user permissions can swipe scancodes) ease of keylogging in an x11 environment, should I run GPG tools only in the TTY?
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38 views

Why does Caps Lock key behave as Caps Lock key without the Lock modifier?

At first, there is no key mapping. The Caps Lock key on my keyboard behaves as Caps Lock. lone@debian:~$ xmodmap -pke | grep Caps_Lock keycode 66 = Caps_Lock NoSymbol Caps_Lock lone@debian:~$ ...
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1answer
54 views

After mapping Caps Lock to Escape using xmodmap, how to revert Caps Lock back to Caps Lock without altering Escape key?

I have mapped my Caps Lock key to function as Escape using this command. xmodmap -e "remove Lock = Caps_Lock" -e "keysym Caps_Lock = Escape" Now how can I undo this mapping? I tried the following ...
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0answers
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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2answers
29 views

How are window-ids given out by MATE window manager?

While trying to write a script involving wmctrl ( since MATE on LMDE 2 doesn't offer as many advanced features as other WM configurations involving Compiz, which I don't have on LMDE 2), I came across ...
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2answers
309 views

X11 forwarding Amazon EC2 significance of sequence number in DISPLAY variable

I am X11 forwarding from an Ubuntu instance hosted in a Amazon EC2 to my localhost. I am able to do the forwarding only when the remote (Amazon EC2) DISPLAY variable is set to localhost:10.0 I ...
3
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1answer
162 views

emacsclient connection refused

I am running emacs in daemon mode and I got dissconnected from the server on which it was running. After re-connect, when I run emacsclient -nc I get the error connect localhost port 6012: ...
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72 views

Gnome - input source not working

I have Elementary OS and there is problem if custom keyboard layout should be added, because currently the switchboard-plug-keyboard uses hardcoded layouts from data/layouts.txt and does not scan ...