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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166 views

Counting windows

Is there a command to get the number of (visible or iconified) X11 windows? The command $ xwininfo -children -root returns a long list of windows but most of them are neither visible nor iconified. ...
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0answers
15 views

How does x windows server and kde\gnome\etc. work [on hold]

I'm looking for info about x server and desktop environments, how do they work. this is for development purposes thank you.
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1answer
30 views

Run a GUI application in background and reconnect later [duplicate]

Is there a way to run a Gui application (X11) in background so that if I disconnect, I can resume the running app again? I am using SmarTTY on windows to connect to remote CentOS. When I run a Gui ...
2
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1answer
17 views

what does Xserver access control mean

What meaning does Xserver access control have, when the Xserver is started with tcp disabled: /usr/bin/X11/X -nolisten tcp AFAIU, Xserver can be used to allow remote network connection. But, if it ...
3
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1answer
28 views

Retrieve X11 window ID of a just-launched GUI-program

I want to retrieve the X id of GUI programs I launch in background, in order to work on their windows properties. I've been so far using this workaround: myprogram & sleep 1 winID=$(wmctrl -l | ...
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1answer
25 views

How to write short alpha using the compose key

I'd like to enter a short alpha using the compose key: ᾰ. I tried using compose+U+α but this doesn't work. Neither does using b instead of U. How can I enter the short alpha using the compose key?
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1answer
84 views

Start script on boot up?

I want to run a script when the system starts. The script is: #!/bin/bash gnome-terminal --tab -t "MyPC" -e "sh -c 'nohup firefox & nohup gedit & bash'" --tab -t "MYPC2" -e "sh -c 'ls -al;ls; ...
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1answer
17 views

xmessage in a script freezes

I use the following script called from a udev rule in order to automate backup: #!/bin/bash export DISPLAY=:0 export XAUTHORITY=/home/gauthier/.Xauthority # ... other things like offering abort, ...
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1answer
24 views

Shutter Script(s)

When i play some games with wine , i must not change the window , because of that , the game crash or that window are fill of black. im using xfce4 desktop , when i press "PrintScreen" key from ...
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20 views

C code to send simulated Alt-C to another App window using X11 calls and ioctl [migrated]

I am writing a C program to allow me to send simulated keyboard input to another Application's window open on my desktop. I need to be able to find the App window by name and get an id for it, and ...
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0answers
25 views

Resizing Xterm window kills Django running in it

I have a Django instance running in a terminal window. Any time I resize the window, the Django process dies ungracefully, leaving no record of it in the error_log file. I tested it within ratpoison, ...
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1answer
35 views

How to continue a script after X has been closed?

I recently installed RetroPie on my Raspberry Pi and I'm trying to find a way to (once I'm in LXDE) run a shell script that kills X and then starts EmulationStation. I can kill X with pkill x but then ...
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2answers
49 views

Arch linux: set keyboard layout to PL

I'm unsuccessfully trying to force my Arch to set pl layout on X start. I've googled for solutions, and I found couple of tutorials/tips but none of them works. My current, keyboard related ...
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2answers
26 views

X11 confusion with windows/solaris/windows config

I am struggling with X11 forwarding .... I use a Windows 7 laptop to Putty onto a Sun T2000 running Solaris 10. I have got ssh -> X11 -> X11 Forwarding ticked but nothing in the the X display ...
3
votes
2answers
30 views

make terminal selection automatically copy to the system clipboard buffer?

Is there a way to have terminal applications (gnome-terminal, terminator, etc) automatically move selected text to the CLIPBOARD system buffer, and not just the PRIMARY (i.e. terminal-local) buffer? ...
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0answers
17 views

aterm or gnome-terminal window unresponsive to keyboard events

I try to investigate a problem: Depending on the way I launch aterm or gnome-terminal, the window may or may not be responsive to keyboard events. The cause of the problem may reside in Aterm, ...
2
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1answer
48 views

Can I control a graphical program from the command line?

How can I enter text in the text fields of the window shown by a program in an automated manner?
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2answers
34 views

Paste text to another application from script via shortcut

Let me describe what I want to achieve. We are using two-factor authentication and I would like to create script which will generate TOTP token for me and it will paste it to let's say Firefox on some ...
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0answers
12 views

execute command on pointer movement, wait and revert?

I've got two pointing devices (touchpad and trackpoint) and the goal is to execute a command when movement (any direction, any distance) is detected on the trackpoint, then wait a configurable amount ...
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2answers
21 views

Change behavior of superscript key in text editor (elementary os)

When writing latex in sublime text is often use the ^ character to insert superscript. right now the default behavior is quite annoying, as it does not insert the ^ until i press space. How change i ...
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0answers
14 views

X11 forwarding through a server where X11Forwarding is disabled

How can I push an X11 forwarding session over an SSH tunnel when the server doesn’t allow that? I guess I should use some port forwarding or edit ProxyCommand in /etc/ssh/ssh_config, but none of them ...
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0answers
31 views

Unable to restart xmonad on archlinux

xmonad --restart used to work but it doesn't anymore and it's not a prevalent issue so I think it's probably a problem on my side. I have pasted the output of strace xmonad --restart below. I am quite ...
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2answers
49 views

Prevent auto-selected text from copying

I really like the Linux-style copy paste (highlight text to copy, middle-click to paste) - except when text is automatically highlighted in a dialog box. For instance, selecting text on a web page ...
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How to troubleshoot: “X11 connection uses different authentication protocol.”

I start an ssh session with localbox % ssh -vvv -Y remotebox 2>debug_ssh_log ...which succeeds. Then I try to run xlogo on remotebox, but the command fails immediately, and the following lines ...
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49 views

GLX extension missing on display “localhost:10.0”

I have installed scilab 5.5.1 on rocks based cluster(with GPU card & nvidia driver installed), and i am able to successfully use scilab on the same . Issue arises when i need to use scilab from a ...
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11 views

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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68 views

Xorg.bin uses 100% CPU randomly (mostly after switching TTY), with i915

I'm on Arch Linux, 64bit, on ThinkPad x201, and it's using (I think) an integrated graphics chip in the Intel i5 CPU. Sometimes, Xorg entirely hogs one core for several minutes. It's entirely frozen ...
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2answers
47 views

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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1answer
35 views

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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1answer
76 views

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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2answers
36 views

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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36 views

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 ...
4
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1answer
138 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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0answers
42 views

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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0answers
86 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
319 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 ...
3
votes
1answer
78 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 ...
1
vote
1answer
44 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 ...
1
vote
1answer
44 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 ...
3
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0answers
21 views

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~ ...
2
votes
1answer
36 views

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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vote
1answer
49 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 ...
2
votes
1answer
16 views

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 ...
4
votes
1answer
52 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 ...
3
votes
1answer
117 views

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
51 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?
5
votes
1answer
97 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, ...
2
votes
1answer
38 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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vote
1answer
38 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
41 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 ...