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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Unable to start X Server with no screens, no xorg.config to edit

I am trying to start the X server (I have all the packages installed). The problem I am having is that the server is offsite, has no screen and never has had a screen connected to it and as a result ...
3
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1answer
2k views

Keyboard layout changed. How and why?

Yesterday, I upgraded my kernel (to 3.5.0-19-generic), rebooted, and had to reinstall my video drivers to get full resolution. (After upgrading the kernel, the resolution always goes to 640x480, until ...
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10 views

SEGFAULT error 4 in libX11 on another X display caused by War Thunder

I read tons of info about performance boosting for linux gaming. One of them is to run games on a separate X server. After hours of search and tries, I ended up with something "working" for most of ...
3
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1answer
456 views

Laptop keyboard occasionally stops working

I have a dirty solution that is to plug a USB keyboard in and execute the following command: setxkbmap -rules evdev -layout us -model evdev Afterward my keyboard will work. This solution only ...
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247 views

Is any part of the X.org software multithreaded?

None of the command-line shells that I am aware of are multithreaded. In particular, even those shells that support "job control" (Control-Z, bg, fg, etc) do so via facilities (namely, fork, exec, ...
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When running some X prog. remotely with ssh -X, it says “libGL error: failed to load driver: r600”

OS: CentOS Linux release 7.0.1406 (Core) Kernel: 3.10.0-123.8.1.el7.x86_64 When I run xcrysden (http://www.xcrysden.org/) remotely through ssh -X, it crashes with error: "libGL error: failed to load ...
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3answers
18k views

X client forwarded over SSH “cannot open display: localhost:11.0”

I have enabled X forwarding on remote machine where SSH server is running: # grep -i forward /etc/ssh/sshd_config X11Forwarding yes # On local machine, I have started SSH client with -X flag ...
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1answer
681 views

Certain fonts missing from xlsfonts in Centos 6.4

I have a certain software on CentOS 6.4 that gave the following error: X Error of failed request: BadName (named color or font does not exist) Major opcode of failed request: 45 (X_OpenFont) ...
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1answer
54 views

ffmpeg is killed

So I have a problem here. I have a session of ffmpeg -f x11grab running, and suddenly kill -9 or Ctrl+Alt+Backspace comes and GUI dies of course. So far everything seems to be OK. When I try to play ...
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23 views

a windows manager does not interface with X Window System [on hold]

i want to get the most out of my hand me down Lenovo Thinkpad. in particular i want a fast and light desktop environment. so i was thinking of ditching X Window System altogether. i've chosen Wayland ...
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3answers
62 views

How do I exit the window manager on the current X display?

Let's say I have the window manager Blackbox running on two different X displays, e.g. :0.0 and :1.0 launched from tty1 and tty2 respectively. From a terminal (emulator), how do I exit (kill) the ...
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1answer
21 views

Run Cygwin software on Linux

My professor has some software that he wrote that runs on Unix-like systems. Either on Windows via Cygwin or on MacOS, it uses X11 on both platforms. Is there any way for me to run it on Linux? He ...
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1answer
695 views

setxkbmap switches between 2 out of 3 layouts

Issuing that command: setxkbmap -layout "us,ua,ru" -variant ",winkeys" -option "grp:shift_caps_toggle,grp_led:scroll" -model pc105 -rules xorg When hitting Caps Lock+Shift I'm switching between ...
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15 views

Guidence on writing a system tray daemon

I'm using openbox and I want to write a pipemenu to serve as a system tray. For this, I need some kind of a way to access the information on which applications are registered with the system tray and ...
0
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1answer
21 views

How do I make Debian start with IceWM-lite by default at startup?

On a Debian box, I have installed IceWM and IceWM-lite, I'd like it to boot with IceWM-lite by default. So far I have done this through the desktop menu after each boot.
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2answers
10 views

Run full kde desktop remotely on another Linux box?

I have two identical Linux boxes, A and B, both have KDE installed. Sitting in front of the screen of A, I'd like to have B's full KDE desktop appear on A's screen, using X11 (not VNC). Presumably ...
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3answers
56 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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14 views

How do x-compile and install X11 on ARM?

I have FriendlyARM mini210s with bare linux 3.0.8 armv7l. I'd like to install X11 (X-Window System) on top of it. How do I proceed? Is there any ready to use package (tarball to extract onto my ...
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1answer
1k views

Trying to get firefox running on CentOS 6 minimal iso - can't open display

I've got minimal CentOS 6 running on an Oracle VirtualBox on a Mac. I'm trying to get Firefox up and running so I can download some web files into the VM. I installed Firefox (yum --enablerepo=remi ...
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3answers
145 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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21 views

Xauthority problem

User1 has his home directory on NFS that's mounted by machine1 and machine2, both of which are running Redhat 6.4. If I ssh -Y user1@machine1 and run gedit, I get "X11 connection rejected because of ...
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11 views

org.freedesktop.consolekit launch failed error 127

I have an old Dell laptop that I've been running Crunchbang 11 x64 from a thumbdrive. The hard drive is dead, but I'm it's been pretty useful, running a Plex server, etc. I'm currently having ...
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1answer
492 views

Boot graphical application straight from Linux bootup (without verbose boot messages and desktop)

Is it possible to boot from minimum Linux core(Linux/Android) to an application (preferably created in interchangeable platform languages such as C# – Mono / GTK / Java / C) without any verbose ...
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3answers
250 views

How can I blank the desktop via the command line?

I'm looking for a way to hide the entire desktop + icons and then launching a single app. It's for productivity usage, if that makes any sense. How can I programmatically make my desktop blank (i.e. ...
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1answer
24 views

Understanding ssh X11 forwarding

I have a rather odd setup I'm trying to get working. I have an Ubuntu install running in a container (through Proxmox). The host computer is CentOS. Neither server is running an X instance. My host ...
7
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1answer
677 views

Remapping power key to delete

I have a macbook pro running Ubuntu 13.10 with FluxBox. Unfortunately, the power button is physically above the backspace where I would expect the delete key to be in. In OS X, the PowerKey program ...
2
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1answer
12 views

Xmodmap syntax for rebining shift+up

I would like to rebind some keys on Linux via Xmodmap. Left and up cursor on my Acer (yes, I know) laptop have broke. I would like to map shift+down to up, and shift+right to left. Struggling to ...
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5 views

Java Focres X11 Window Server to Restart

I'm using OpenSUSE 13.2 with openjdk 1.8 and GNOME 3.14 desktop environemnt. Sometimes when I'm using a java GUI application (Swing) the XServer restarts. It just restarts. I don't know why, or what ...
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20 views

How to capture a keyboard shortcut

I need a script, that will run in terminal (under X11), and wait for a keyboard shortcut (happening anywhere in the desktop environment), once that shortcut (or key press sequence) happens, it will ...
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0answers
31 views

Finding certain X window with Python's Xlib

I am trying to find an unmapped window on my X server in order to map it back and send it some EWMH hint. Because the window is unmapped I cannot use EWMH to ask the window manager directly. So I am ...
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1answer
697 views

Shortcut keys that are independent to keyboard layout

Is there a way to define an association of a particular physical key of the keyboard to some action, independently of the letter that this key is associated to in any layout? Example: In most ...
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1answer
62 views

Force English layout for the «Compose» key pressed

I like using Compose key. The problem is that large part of my text being typed in non-english layout. This means that some symbols messed up, and most isn't even present (i.e. latin characters). ...
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6answers
19k views

How to get keycodes for xmodmap?

I'm trying to use xmodmap to remap Alt / Super keys on Dell L100 keyboard, and have trouble getting the keycodes. For instance, using xev doesn't give me keycode for Alt FocusOut event, serial 36, ...
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8answers
179 views

Record screen in X

How can I record all activity on the screen for a certain amount of time? I know about tools like xwd that capture a still image; can they be extended to record video? I'd prefer not using any fancy ...
4
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1answer
63 views

Change the status of the keyboard leds, from within an X session, without root access

I am trying to force the capslock led on. xset does not work for me, so I am trying to use setleds. In a graphical console, this command returns: > LANG=C setleds -L +caps KDGKBLED: Inappropriate ...
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1answer
30 views

using script function rather than keyboard input

I'm writing a shell script to change a user's password. I tried to use the passwd command, but that command always asks for the old and new passwords to be typed; it won't accept them from my script. ...
3
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1answer
380 views

Running multiple xserver displays “offscreen” or “headless”

I would like to run two or more displays, while I only have one GPU and one monitor. The second display does not have to display anything on the monitor, a dummy output would be ideal. I use startx ...
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2answers
34 views

Change icon for an application form command line?

Is there a way to change the icon of an application's window from the command line? For instance, I'd like to have separate icons for Firefox windows under different profiles (different processes), ...
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1answer
1k views

Can another program on X capture my root password while I type it in a virtual terminal?

Usually I only install open source programs on my linux box because I don't trust closed source applications. Recently I had to use Dropbox for a university project. I created a separate linux account ...
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2answers
241 views

how is a keyboard shortcut given to the correct program?

in Ubuntu (or for that matter most other linux distros), I could use the shortcut ctrl+t to open a new tab (in firefox or similar), or I could use alt+tab to make unity switch highlighted window, or I ...
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29 views

Logitech G600 mouse issues

I have a problem with my Linux: I plugged an additional hard drive into my computer to finally install linux also on my gaming PC since its way faster. I'm using a Logitech G600 mouse and whenever I ...
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0answers
30 views

Best way to connect to all X displays

In a C or C++ program, what is the best way to connect to all X displays on a computer? I would like to check the X idle time of each display, to determine whether the computer is idle across all ...
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1answer
83 views

Forwarding X11 not working - Error: Can't open display: localhost:11.0

LM 17 Xfce OpenSSH_6.6.1p1 Ubuntu-2ubuntu2 Despite googling everywhere, I cannot seem to get this to work. I keep getting this error. $ xlogo Error: Can't open display: localhost:10.0 I have tried ...
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0answers
23 views

Capture timestamped X mouse events, and render a video with custom mouse pointer?

I am typically using recordmydesktop to record some application interaction; however, on my system, recordmydesktop always shows the same mouse pointer/cursor (the arrow) - regardless if, in reality, ...
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1answer
57 views

Why does Shift+Insert paste from CLIPBOARD in some applications and PRIMARY in others?

How do I paste from the PRIMARY selection (eg. mouse-selected text) with a keyboard shortcut? Shift+Insert inconsistently pastes from PRIMARY or CLIPBOARD, depending on the application. Background: ...
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1answer
430 views

Cannot login on GUI

I'm using Debian Jessie with Xfce and cannot login into the GUI as a normal user, root works. I can login on another terminal. I tried to reinstall lightdm, but I still cannot login. After a login ...
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2answers
34 views

'Present' terminal window on shell/executable command?

Currently using Xfce and xfce4-terminal, but suggestions involving other Linux-based systems may still be helpful. I start a longish-running program in a terminal window, then alt-tab away and do ...
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1answer
72 views

Can't access virtual terminals after manually starting an X server

I'm working on a display manager. When an X server is already started, my display manager works fine and is able to log in a user. However, in order for it to be a proper display manager, it needs to ...
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0answers
65 views

Clone monitor on HDMI without changing laptop display resolution

My laptop's display has native resolution of 1366x768, and I connect it to my TV which has 1920x1080i. My problem is that the only supported resolution for cloning is 640x480, which happens to be the ...
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1answer
70 views

Run a script that displays an X window from an udev rule

I found several questions on http://unix.stackexchange.com & on http://stackoverflow.com related to launch script by udev rules. But I can't find exact solution or certain answer for executing ...