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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45 views

qt4 applications don't work in Xephyr

I am using Xephyr to run applications as another user, while being logged in as primary user. Most applications work fine in Xephyr, except qt4 based. Specifically: electrum ipython qtconsole ...
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35 views

multiple monitor setting - show only active monitor [closed]

I am using dual monitor along with my laptop. (laptop screen and another monitor attached to VGA port). Now, I have configured like secondary display(extended). Sometimes, I ended up closing active ...
1
vote
1answer
20 views

Change which key is primary and which secondary (need to hold Shift to access)

So I have a standard American (English) QWERTY keyboard and was wondering if there was a way I could have some keys act as if I were holding the shift key on them. The main keys I would like to do ...
3
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0answers
22 views

How to remap “dead_hook” in Emacs and Vim?

I would like to remap some common symbols like ( and ) to the base line of my keyboard combining Alt Gr with other keys like j or k. I can remap Alt Gr+k to ) because that combination prints ĸ. The ...
7
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3answers
665 views

Is it possible that X11 can be forwarded through a SSH tunnel

I communicate with the server via a ssh tunnel, configured via Putty. Recently, I'm trying to forward the X11 through it, but it doesn't work. Is there any one work this way? Searched with ...
3
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1answer
20 views

launch virtual machine on remote computer with X forwarding

Is it possible to launch a virtual machine (using Virtual Box) on a remote machine and just forward the screen using X11 tunneling? I tried this from my remote host: $ssh user@myhost -X virtualbox ...
2
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0answers
40 views

How do I emulate a virtual keyboard with an arbitrary character set?

I am writing a couple applications that change how your keyboard works. (One that allows key-chording, and another that allows you to say syllables out loud to type individual characters.) The ...
4
votes
1answer
34 views

How to list all currently available compose key combinations?

Is there some way to inspect the state of X to get exactly and only a list of compose key shortcuts and what they map to, either as literal keys, for example: aa å 88 ∞ or as glyph names, for ...
3
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3answers
65 views

How to create lowercase pi (“π”) with compose key?

I'm pretty sure I used to be able to create lowercase pi characters using Composepi (as described on for example fsymbols.com), but it no longer works. My compose key works for other characters (like ...
2
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0answers
23 views

Make CapsLock switch between text input and navigation

I'd prefer CapsLock to switch between text and navigation modes rather than lowercase and uppercase modes, much like NumLock swaps numbers and navigation, on as low a level as possible. For example, ...
0
votes
1answer
108 views

xhost + is not working with Oracle installation

I am trying to install Oracle on Ubuntu 14.04. I have followed instructions and now I am trying to start the installation. However, I am facing problems. If I run ./runInstaller command with oracle ...
2
votes
0answers
26 views

How do I get a list of keys currently loaded with XKB?

I am writing an evdev-reliant daemon that needs to know the complete keyboard layout currently in use. Getting the properties of the current XKB layout is easy. You just use setxkbmap -query or ...
1
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0answers
41 views

Why is tmux opening a new terminal window?

When I start tmux in my i3 / termite / zsh environment the default pane with the zsh prompt inside it is launched in a seperate window instead of the window in which I started tmux. Additionally I ...
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0answers
60 views

CentOs 7 - MobaXterm - X11 Forwarding per user

I am using MobaXTerm to connect to my CentOs 7 Server. I have set X11Forwarding yes in my /etc/ssh/sshd_config file. The root user is able to start the X11-Gui for example gedit. The other users ...
0
votes
0answers
19 views

XGetImage from hidden screen

I'm using Xlib for my application and would like get image from root window I open separated Xserver in another tty (:1) then opened this diplay XGetDisplay(":1") I'm working in :0 display After ...
1
vote
1answer
151 views

X server only starts as root

I have an Arch Linux system, stock kernel and drivers. For some strange reason, xinit produces an error when it is started by a non-root user. The logs say this: (EE) parse_vt_settings: Cannot ...
3
votes
1answer
59 views

Emacs X11 Forwarding does not work but xclock does

I'm launching a X server with Xquartz (OSX 10.10.5) using Terminal.app, and I'm trying to connect to a EC2 instance with: ##local $ echo $DISPLAY ...
2
votes
0answers
55 views

Can I scroll background window without giving it focus in i3wm

I have disabled accidental touchpad click to activate background windows. However, when I move two fingers or my palm along the touchpad, this generates wheel events and they activate whichever window ...
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0answers
27 views

Error with `ssh -Y`, error in locking authority file

I am using X11 over the secure shell with the "trusted forwarding" flag, i.e.using trusted forwarding with ssh -Y Today I have been receiving the following error: /usr/bin/xauth: error in locking ...
0
votes
1answer
249 views

X broken after upgrade to Fedora 23

I recently upgraded from Fedora 22 to 23 via the dnf plugin, and everything else works fine except for graphics. The fglrx module appears to load okay, but the X server crashes when it tries to open ...
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0answers
27 views

Why do GUI toolkits not support popular pixel densities? [closed]

Assuming some standard sized monitors with popular resolutions, there are some prominent pixel density categories. Historically 96 is the most common pixel density. With 4k you double up to about 180 ...
1
vote
1answer
40 views

kwin: key binding to move a client to a different desktop

How does one go about adding a Kwin shortcut that reassigns a client to a different desktop? KDE is set up for nine desktops with keyboard shortcuts for Kwin for navigating between them using ...
6
votes
2answers
630 views

What desktop environment does startx run, and how can I change it?

From many docs, I read that startx is starting LXDE in Raspbian OS. I am a little bit confused. Will always startx run LXDE GUI? Also I have seen example with using startlxde command. How is that ...
0
votes
1answer
62 views

Is SteamOS frame-rate performance related to X11?

Ars recently tested SteamOS against Windows 10 and determined on average Windows 10 had a higher frame rate. Does this have anything to do with Linux's reliance on an archaic graphics system (X11)?
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1answer
58 views

How to test bandwidth and latency over ssh with X11?

I am working remotely on a machine using X11 trusted forwarding with 'ssh -Y`. How can I test the latency and bandwidth between me and the server?
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2answers
39 views

Disable touchpad while typing and also touchpad click for X session

I have done a lot of googling for disable touchpad click and disable touchpad while typing and found a lot of answers. However most of them are related to a desktop enviornment. I do not use a DE. So ...
3
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0answers
58 views

Network namespace, ssh, X11

I connect (via ssh -Y ...) from a machine (=client) to another machine (=server, actually in my LAN, but it is irrelevant); then I start a new network namespace (NNS, for short) on the server, I start ...
0
votes
1answer
29 views

Mouse unusable in Java programs under Gnome Shell

I am trying to use Oracle SQLDeveloper (sqldeveloper-4.1.2.20.64-no-jre.zip) under Gnome Shell (Fedora 23). The issue is that the mouse is completely unusable in that application. As-is, button ...
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0answers
29 views

How to hinder the system from starting too many xterm instances?

Everytime I start up my system, about 16 xterm sessions are started subsequently. The machine starts like that1: ArchLinux distribution starts. Enter username & password to log in. Execute ...
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vote
1answer
32 views

Keep x11 GUI app forwarded over ssh alive after lost connection

I am forwarding gftp with putty from my Ubuntu server to my laptop. Is it possible to run the program in a way that will allow it to continue working on the server if my laptop looses connection? ...
3
votes
0answers
20 views

Always insert the diacritic after a dead key

A followup question on this subject, perhaps any of you can help with that too. In Windows the layout for US International does/did this for me; Typing I ' d yields I'd (with no extra jams on the ...
1
vote
1answer
61 views

ssh and sudo but no $DISPLAY

Usually I do this on ssh for getting a X application using sudo su ssh -X server OKI login xauth list $DISPLAY which returns to me server/unix:10 MIT-MAGIC-COOKIE-1 blablablablabla Then I ...
2
votes
1answer
79 views

Convert Xcursor to PNG

Xcursor is a format for the graphics of the cursor in X11 (file reports X11 cursor). xcursorgen allows you to convert PNG files and some metadata to Xcursor files. How do I convert an Xcursor file ...
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0answers
116 views

xrandr only lists mode after a while of waiting

I've installed arch linux a while ago on my laptop and everything worked fine. The issue I've been facing since two weeks or so (most certainly related to an update) occurs when login with external ...
0
votes
1answer
31 views

Some applications become garbled and unusable

Over the past couple of weeks, my Linux Mint 17.2 installation has been acting up. Some programs, such as TortoiseHg, kdiff3, k3b, and some parts of Skype, become graphically corrupted and unusable. ...
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0answers
25 views

Disable and enable reading from touch-screen's serial port

I have X server configured to work with a touch screen through the egalax driver and a serial port. [xorg.conf] Section "InputDevice" Identifier "EETI" Driver "egalax" Option "Device" ...
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0answers
23 views

Disable the number pad on my laptop [duplicate]

I want to disable the number pad on my computer altogether. Pressing the number pad keys should do nothing, neither insert digits/symbols nor move the cursor. (Why? Because my dog keeps pressing them, ...
0
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0answers
35 views

Dealing with broken pipes in ssh X11 forwarding with an intensive numerical simulation

I have a hydrodynamic code I inherited that has a java gui. It is quite user friendly but it is a nightmare to run through ssh because when I do X11 forwarding, if the connection experiences problems ...
2
votes
1answer
48 views

Bind alt but not altgr in i3

I use Mod4 for most keybindings in i3, but I use Mod1 for this: bindsym Mod1+a workspace a bindsym Mod1+b workspace b bindsym Mod1+c workspace c bindsym Mod1+d workspace d ... However this binds ...
2
votes
2answers
49 views

Running more than one console X session with startx at the same time

I have xfce running in display 0 (accessible via Ctrl + Alt + F1). I press Ctrl + Alt + F2 and type startx (attempting to run more than one window manager at the same time) and receive the error ...
1
vote
1answer
76 views

“X11 forwarding request failed” when connecting to github.com

I'm getting a bizarre error message while using git: $ git clone git@github.com:Itseez/opencv.git Cloning into 'opencv' Warning: Permanently added the RSA host key for IP address '192.30.252.128' to ...
2
votes
1answer
40 views

Why isn't X treating ALT_L and ALT_R differently w/r/t Mod1

I have changed the definition of Mod1 via xmodmap to not include ALT_R (to understand why scroll to the bottom). The current layout of the modifiers is below. Despite ALT_R not participating in the ...
1
vote
1answer
22 views

X Window Over network

What makes X Window or X11 protocol use a lot of bandwidth when used over a network (LTSP, etc.)? I've tried to read some docs but I can't find the answer
4
votes
1answer
249 views

Is it possible for a sysadmin to eavesdrop a user's screen/graphics?

I am interested in several things: - is it possible? - how to do it? - is there a way for a sysadmin to configure the machine so that it will beep or send an e-mail to the user so that he is aware ...
2
votes
0answers
39 views

Xpra server error (error accepting new connection)

I'm having trouble connecting to my xpra server. I've installed Xpra version v0.14.10, on my raspberry pi 2 which running on Raspbian Jessie Distro. I connect to my RPi through putty with X11 ...
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vote
0answers
46 views

How to Edit Text Anywhere with Your Favorite Editor in Linux?

Editors like emacs or vim has efficient keybindings. How do I edit every text editing field of all applications which them? There is one for windows already. ...
1
vote
1answer
27 views

No window title bar when X Toolkit “-title” argument ends in “lock”

I'm seeing an odd X behavior, and am trying to determine whether it's originating in the X Toolkit or in my window manager (fvwm). I also can't tell whether it's a bug, or inexplicably intended ...
7
votes
1answer
167 views

Possible to move a window from one X screen to another on same host?

I'm running XFCE 4.12 with 3 monitors setup into two X screens and two video cards on the same computer. Two of the monitors form a single X screen using nvidia twinview functionality, which is ...
2
votes
0answers
56 views

X11 - multiple monitors visible as one monitor

I have three monitors which are configured in xorg.conf this way: Option "metamodes" "DFP-4: 1920x1080+0+0, DFP-5: 1920x1080+0+1080, DFP-6: 1920x1080+0+2160" Is it possible to set two or even three ...
0
votes
1answer
143 views

Graphical application, kiosk mode: fullscreen?

I installed a debian system which automatically starts a graphical application (clementine) when logging in as a certain user. The command run at login is /usr/bin/startx /usr/bin/clementine, which ...