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 is DISPLAY=:0?

What is DISPLAY=:0 and what does it mean? It isn't a command, is it? (gnome-panel is a command.) DISPLAY=:0 gnome-panel
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1answer
31 views

Why can X11 access the video card?

This one is maybe a bit theoretical, but... How the heck can X11 touch the video hardware? As I understand it, X11 is an unprivileged user-mode program. But only kernel-mode software can access the ...
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1answer
43 views

My ssh server stopped working after I did something

I'm very new to Linux, BTW. The ultimate goal for me is to run applications and their GUIs on a (Mac) computer from another computer. The first step is to just use SSH to access and control the ...
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0answers
23 views

ssh x11 forwarding drag-and-drop

Is it possible to drag-n-drop into x11 forwarded application? For instance, I'm forwarding skype and I'd like to send a file by dropping it into message box. Yes, I know I can work it around. This ...
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0answers
36 views

How to attach keyboard and mouse to another screen?

By default, the X server would attach keyboard and mouse to display 0:0, but how to change it to another screen such as 0:20?
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14 views

oxmplayer is on top and blocking every other GUI application

I want to display notifications popups(osd_cat) on my screen while running oxmplayer but it seems that the latter is on top of everything and doesn't allow the notification to appear. I run the ...
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0answers
8 views

How can I maximise Netbeans window from the terminal?

I am on CentOS 6 and using VNCViewer to remote in to a box which has four monitors. The problem is VNCViewer won't allow me to click on the Netbeans Window "Maximise" square, top-right, so I can ...
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1answer
34 views

GParted Live on Hard Disk with Ubuntu

Edit Please note that I fixed the original problem of not booting, but I still can't get it to run X-windows after being prompted for language, input, and display resolution. Original question I read ...
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1answer
36 views

How to set the monitor brightness gracefully at boot time?

I've been using a loop that contains xrandr --output VGA1 --brightness 0.3 in a bash script which will automatically execute right after logging in by gnome-session-properties (a.k.a. Startup ...
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0answers
11 views

how to display osd_cat on a remote HDMI Screen [duplicate]

i have installed xosd an used osd_cat to display text in my screen. the problem is that i cant do it on the remote station on the remote screen through SSH. I want to execute osd_cat on the remote ...
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2answers
32 views

How to disable the keyboard's numeric keypad?

I want to disable all numpad keys; the ones located on the right side of my keyboard. How can I do this? Of course, I would also like to know how to revert the action an re-enable the numeric keypad. ...
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1answer
23 views

Xorg/Twm window has focus only when mouse is over

I have Xorg with Twm and xterm installed on Arch linux, and when I start the X server, I can type in xterm only when the mouse pointer is over its window. I have been searching options to Xorg and Twm ...
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0answers
21 views

How to use Xfig on high DPI screen?

On a high DPI screen, lines in Xfig are very thin. Is it possible to scale the lines, or the entire Xfig UI? Note that I don't want to scale the entire desktop. Other application UIs are legible on ...
2
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1answer
34 views

How to remotely send a keypress to an X11 application?

I've got an X11 program (Mathematica/Linux) running which contains unsaved data (calculated after I left; unfortunately I didn't have the foresight to programmatically save the data). Now I've gotten ...
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0answers
25 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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2answers
31 views

How display a text for users in the entire screen

I want to display a text above the user screen(as an upper layer). I know that there is solutions like xmessages that could display the text in a box, But need it to be displayed without a box on the ...
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0answers
19 views

X11 forwarding to IP doesn't work on some servers. I can't find any config differences

This command allows me to send an xterm to xming on my windows desktop: xterm -display 10.13.18.125:0 (my workstation IP) For the servers that it doesn't work with the IP, It will work for some ...
2
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1answer
18 views

Start an application on initial workspace instead of current workspace

If I start an application and switch workspaces in the time the application is starting up, the application goes to the current workspace and not the one "from which" I called it. Where can I change ...
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vote
1answer
9 views

Remap mouse button 8 (“browser forward”) to mouse button 2 (“middle click”) on RHEL

What would be the proper way to remap mouse buttons on RHEL? xbindkeys doesn't seem to be available on my repos (not RHEL default, but enterprise custom repos). I guess I could install it on my own, ...
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0answers
22 views

Middle-click scrolling with ThinkPad/avoid pasting

I have a ThinkPad USB keyboard, and I want to be able to use the middle click both for pasting and scrolling. This works on my ThinkPad laptop. On the laptop, if the middle click button is held for a ...
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1answer
23 views

Is there a way to replace the currently selected text on X11?

I stumbled across xclip which gives you access to the text you have selected on your active window. I've been thinking if there was a way to alter such text. The workflow I have in mind is the ...
7
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3answers
440 views

Capture the X11 protocol's traffic

How I can capture the X11 protocol's traffic? I need find a way to capture X11 traffic between two machines and also between an X11 server and an X11 client on local machine.
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2answers
54 views

Allow virtual terminal switch only for root

I'm currently working on a CentOS system (with Gnome desktop), where i want to disable the use of console for non allowed users. Actually when logging in with a standard user it launch my app and ...
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0answers
43 views

Fast drop-in replacement for ssh -x

I'm looking for something to provide faster X11 fowarding than ssh -X provides. I do not need a full GUI session or the ability to drop/resume user sessions. I use NX regularly, but as far as I can ...
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0answers
9 views

Why does gstreamer-ffmpeg change the fonts for java applications?

I recently installed gstreamer-ffmpeg-0.10.i686 on RHEL 7. As a result of this text in my java program has become slightly larger (maybe 2 or 3 font sizes), which is enough to mess with some of the UI ...
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32 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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18 views

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

I have a remote connection through NX client (Remmina) on 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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2answers
35 views

X11 display entered zoom mode. How do I exit?

I pressed something around my mouse pad (keys in the altgr region+mousepad - quite possibly multitouch) and suddenly the whole X11 display zoomed around 10%. That means I can see 90% of the 1920x1080 ...
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11 views

Is it able to redirect content of remote host clipboard to local clipboard?

When I doing :%y+ in a vim session on the remote host, I actually saved the content into remote host clipboard, right? Is there a way that I can redirect such content of :%y+ from remote host ...
0
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1answer
31 views

Keep program running after logging out SSH -X, and reopening it later [duplicate]

I need to login to my school computer where I am running an experiment. I am logging via SSH -X since it uses a custom made GUI application. I want to be able open the program, make it start ...
0
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1answer
12 views

X11 window scrambled when connecting

I've set up XCA on a CentOS VPS box. Now, when I ssh to the server in my X11.app terminal screen with the -x flag, I manage to get onto my server. Then when I execute 'xca', the following happens: ...
2
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1answer
31 views

How do I disable graphical password prompt from SSH?

Sometimes SSH pops up a GUI password (or host authentity) input window, which interacts poorly with Awesome window manager, prevents copy&paste of the password and is generally unnecessary for me. ...
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51 views

Escape the influence of flash elements in webpage using keyboard

When watching a flash video in a browser (a youtube video in iceweasel, for example) if I interact with the flash element with a mouse, click to play or pause or something, the flash element seems to ...
1
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1answer
125 views

Operate X clipboard from command line

I'd like to copy and paste to the clipboard from the command line. I've found two utilities that works with "mouse" selection: xclip and xsel. But they both ignore the clipboard that is filled with ...
2
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0answers
37 views

Separate monitors with separate keyboard and mouse input?

So I was wondering if it would be possible using Xfce and without virtual machines to essentially make one computer act as two by having two monitors with different workspaces and separate keyboard ...
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0answers
28 views

X protocol errors using lxde on top of Xdmx

I'm trying to setup Xdmx with lxde. Now I have some issues: lxde itself works fine, but as soon as I use it on top of Xdmx, I keep getting various X protocol errors, even when only connecting to a ...
2
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2answers
39 views

Override a few keycodes with XKB

I want to shuffle a few keys around with XKB. (Why? On a laptop where some keys are inconveniently located.) I currently use xmodmap: keycode 110 = Prior keycode 115 = Delete keycode 112 = Next ...
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0answers
19 views

KeePassX Global Autotype corrupting keys when used with VMware

I'm running VMWare Workstation on Arch Linux with KeePassX set to use ALT + "A" as a global auto-type keybinding. Prior to running VMware, KeePassX works great. When VMware releases the keyboard from ...
0
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1answer
31 views

Setting initial configurations of user session for Arch Linux

I have to configure the keyboard every session with the command: setxkbmap -layout br And to connect: systemctl start dhcpcd I want the system do this automatic, I've tryed change the ...
2
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0answers
27 views

How to map Alt+H to the Arrow-left key?

I would like to have my HJKL keys to function as arrow keys whenever the Alt key is pressed down. Also other combinations should work, such as Ctrl+Left should be seen when Alt+Ctrl+H is pressed. ...
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0answers
28 views

X Image following cursor mouse pointer

i have rpi connected with hdmi on big tv few meters from my workplace and i want to change size of mouse pointer. xsetroot -mouse .. .. will change just one type of cursor and not covering all ...
1
vote
1answer
55 views

What is the proper encoding name to use in locale for UTF-8?

Just wondering here as I have on this CentOS 7 system: $ locale -a <snip> en_US.utf8 <snip> and yet: $ localectl System Locale: LANG=en_US.UTF-8 To add to that, the preferred name ...
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1answer
52 views

Why do some apps leave KeyRelease events to be consumed by next focused app/window

I'm trying to wrap dmenu within some script to feed it input and act on it, however when pressing the Return key to select some dmenu input, a KeyRelease event gets sent to whatever window is focused ...
2
votes
3answers
44 views

How to launch xev from console?

I am trying to launch Xev from console, it always gives "unable to open display", I need to launch xev from a console as another user (I use sudo -u '#1000' to do this). I know xev has a "display" ...
0
votes
1answer
106 views

/usr/bin/gnuplot.exe: error while loading shared libraries: cyggd-2.dll: cannot open shared object file

I am trying to run Octave under Windows and to run graphics plotting routine under it. It requires Cygwin and X/Cygwin. When I trying to run any plotting routine, the following error appears: ...
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0answers
28 views

Eclipse over X11 forwarding is not showing all icons/assets

I have a virt running RHEL5 which has Eclipse installed on it. I'm using ssh -Y to start eclipse on my Ubuntu host. My problem is that not all assets in Eclipse seem to be shown. Some of the menus ...
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2answers
388 views

Is there a universal way to write Unicode characters?

I sometimes want to write special Unicode characters, like an em-dash (—), in various programs like vim, Chrome (like just now!), or LibreOffice. In LibreOffice, I can achieve this via a dedicated ...
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1answer
49 views

Play crawl-tiles over SSH from Windows with PuTTY

I have a headless Raspberry Pi running PiBang (swapping to Raspbian soon since PiBang is no longer supported) which I'd like to play Dungeon Crawl Stone Soup over ssh. When I try to run crawl-tiles ...
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0answers
54 views

Lightest hardware accelerated desktop system

I need a list of lightweight desktop environment that uses hardware acceleration either natively or from being on top of another library like Xlib, GTK+, etc. What I'm actually looking for is a ...
2
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1answer
33 views

xmodmap shift + keycode to produce keysym

There seem to be few examples for how to use xmodmap to bind a modifier + some key, to a new key. E.g. I want to bind left Shift (keycode 50) + ` (keycode 21) to emit a grave accent character: ` ...