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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X: Find out if a window is visible to the user i.e. not covered by others

I only want to execute a certain action with xdotool if the window is not visible to the user, this includes minimized windows, but also windows which are 100% covered by other windows (if no ...
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40 views

Using HID compliant mouse like device in ubuntu [on hold]

Aim: I have a whiteboard which emulates a mouse. Thus, when you click and drag on the whiteboard it should move the cursor. I want to make a whiteboard work in Ubuntu. It works on windows. Device ...
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21 views

linux - show image on console / X11 [duplicate]

Is it possible to show an arbitrary image across the console / X11? In essence, I just want the video output to be the image. Is there a way to do that? I would want the console virtual terminals ...
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19 views

the following error occurred while installing x11 in aix. would you please guide me for solution [on hold]

the following error occurred while installing x11 in aix. would you please guide me for solution.
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29 views

Disable CapsLock functionality on short press

Is there any way to make pressing CapsLock effective only on long press? for example it effect only when we press and hold it for half a second? (I'm using ubuntu 14.04)
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32 views

Keyboard shortcut to paste selected text to SECONDARY clipboard

I am aware that mouse selection and CTRL+C adds content to the PRIMARY and CLIPBOARD X Selections but I need a keyboard shortcut(or mouse) to have the selected text in SECONDARY Selection. Any leads ...
3
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2answers
64 views

Linux using whole swap, becoming unresponsive while there is plenty of free RAM

I am experiencing a weird issue lately: Sometimes (I cannot reproduce it on purpose), my system is using all its swap, despite there being more than enough free RAM. If this happens, the systems then ...
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11 views

do not follow mouse focus [closed]

On my Ubuntu 14.04 I have a lightweight window manager wmii where a mouse motion changes a window's focus. This is annoying and I want to change this behaviour, i.e. if only I left-click on a window, ...
3
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1answer
12 views

Non-GUI based pin-entry for gpg

I'm in the process of remotely viewing and selecting hundreds of images, some of which are encrypted with a symmetric key. I log in to the remote desktop machine using ssh. The viewing is not fast, ...
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2answers
31 views

XKB: assign multiple keycodes to one behaviour (<ESC>)

I have a new bluetooth keyboard, and for some reason the keycode that the escape key returns is 172 instead of 1 (according to 'showkey'; the same codes have 8 added in xkb, so 180 instead of 9). By ...
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20 views

How to use xpra like xvfb-run?

xvfb-run allows me to open a display and run a graphical app and when the app finishes xvfb closes too. for example xvfb-run --auto-servernum --server-args="-screen 0, 1920x1080x24" nw script.js ...
3
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1answer
30 views

Specifying fonts in xterm

I'm having difficulty gettings fonts to display correctly in xterm. The situation is complicated by this being a headless server which I'm connecting to from a Macbook Pro via xpra, with no desktop ...
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Why does `xrandr` say I have 3 HDMI and 3 DP ports while I have only one HDMI and one DP?

This is what xrandr shows on my machine: $ xrandr -q Screen 0: minimum 320 x 200, current 3840 x 1200, maximum 8192 x 8192 VGA1 disconnected (normal left inverted right x axis y axis) HDMI1 ...
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1answer
15 views

dconf fails when running X application from alternate user

In an effort to protect my personal files in my home directory, I am trying to run certain applications as an alternate user, but under the same graphical environment. I have enabled X permissions by ...
2
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1answer
36 views

How to replace the hostname portion with xauth (OLD: How to redirect output of xauth command?)

I would like to generate a new Xauthority file using xauth with another hostname portion and write it to a different file name (as opposed to ~/.Xauthority where the xauth command typically writes ...
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32 views

Is there a terminal emulator which remembers the output from its last run?

While modern desktop environments usually start all the applications which were open in the previous session and some terminal emulators may even open as many tabs as before, I've never seen a ...
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24 views

Strange X11 forwarding issue [closed]

I have a strange issue regarding ssh x11 forwarding. Assume I have an host named node71. Firstly, I start Cygwin/X and mintty in Windows, now the local DISPLAY=0.0 Next, I can do ssh root@node71 -Y, ...
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35 views

Launching X11 server as non-root user

I'm trying to launch an x11 session (or is it an xorg session? I'm not sure) from the command line: startx &. I get the following result: X: user not authorized to run the X server, aborting. I ...
2
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1answer
24 views

Text movement in Text fields

I moved to OS X several years ago, and have noticed that due to the way they set up keybindings, you get some niceties when it comes to navigating any text area (for example the URL field in your ...
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39 views

Cannot get the resolution I need when using DUMMY Xorg Driver

I am using Lubuntu 16.04. I am trying to set up a "headless" (i.e. no monitor plugged in) server but with a full GUI running that I can access via TeamViewer (I have reasons for this requirement, but ...
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1answer
104 views

Is there any common X11 program?

You can think of echo or cat as common terminal program. You can call blindly: echo "hello world" in bash for example and it will work. You will see the output. I am looking for something like ...
2
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1answer
25 views

xterm width and height with regard to number of pixels NOT number of characters

On X window system (TWM) of my Ubuntu 12.04, xterm has width of 484 pixel and height of 316 pixel, and its geometry is 80x24, based on xwininfo. On X window system (TWM) of my LFS 7.9, xterm has with ...
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15 views

LightDM starts two X servers instead of one

I work with Debian over BeagleBone Black. An engineer replaced the (hardware) board display, and now two X processes start instead of one. LightDM and X settings are default. They worked well before ...
2
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1answer
19 views

Lending my x window to another process

I am writing a terminal file manager, and I would want that when a user issues a command to open an image file, that the image viewing application use the terminal emulator's x window for rendering ...
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1answer
37 views

debian / screen freeze but system working

I've recently installed a dual-boot Debian Jessie / Win10 on a 64bit tower PC, and I'm having serious issues with Debian's install. Out of the blue the screen/mouse/keyboard freeze, while the system ...
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14 views

Prevent GIMP from raising & activating new windows/tabs

I'm using XSane to scan images in to GIMP 2.8.16. With the scan settings, this unfortunately takes a few minutes per scan. I'm using GIMP's tabbed window mode. It's nice that I can work on other ...
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26 views

How to forward ssh X11 from an ssh session to base computer?

I am working from out of town, so I need to connect my computer at campus. Normally, when I am around the campus I can just use my ip of lab computer to forward x11 like; ssh -X acc@lab-computer ...
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1answer
21 views

Looking for a simple graphical notifier in KDE, invokable from bash

I am using Debian with KDE. There is a small bash script, that runs in the background. If it encounters a certain condition, I want my work on a full-screen IDE or completely unrelated console ...
3
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1answer
20 views

Why is VNC so extended instead of X11

If X11 provides functionality to use a graphical application remotely why is VNC used instead of the X11 server capabilities apart from overheading issues? Can you config your X11 client to connect ...
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52 views

What is X11 exactly?

I'm reading Wikipedia about X11 and it says that: In its standard distribution it is a complete, albeit simple, display and interface solution which delivers a standard toolkit and protocol stack ...
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22 views

X11 touch the value of the shivers . Is there any way?

I am using the X- widnwos. I use the touch screen. If you are a touch on the touch-screen cursor is unstable. Below is the video. https://youtu.be/jMub9-T_wEA How do I improve the following ...
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1answer
29 views

Securing X window displays

I want to install X on a system I'm in charge of. I plan on running it with local connections only, e.g. with startx -- -nolisten tcp (which I understand is the default these days). Some relatively ...
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38 views

Ubuntu .desktop file not working but command line launch works

Ubuntu 15.10 running in a VM. I have an application installed in /devel that I am able to run from the command line with the command: /devel/dbvis. This launches the GUI and works fine. I created a ...
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1answer
20 views

ddd fails to connect to X Window: Is it a bug or a local misconfiguration?

I am currently analyzing a problem where ddd hangs because it cannot connect to X Window. Here is the output of strace: connect(4, {sa_family=AF_LOCAL, sun_path=@"/tmp/.X11-unix/X0"}, 20) = 0 ...
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save state and detach from an xming session and attach to the same session later

Welcome to the Xming X Server Vendor: Colin Harrison Release: 6.9.0.31 FreeType2: 2.3.4 and Linux 3.8.13-118.4.2.el6uek.x86_64 #2 SMP Tue Mar 22 20:47:10 PDT 2016 x86_64 x86_64 x86_64 ...
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Why are multiple instances of /usr/bin/X running at once on Linux Mint 17.3

I believe this process is the X server. Why are there 4 instances of the following process running at once? Is it normal? EDIT: Is it normal on a fresh install for the x server to have these ...
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1answer
34 views

Running X11 apps on a screen with limited bit depth

This is a bit of an esoteric query, but I want to export the X11 display from my Raspberry Pi to an old Mac capable of only 256 colours. That's fine as far as it goes - but the colours are so mangled ...
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10 views

The window would like the X- represents at the same time in two frame buffers

I'm using the two frame buffer. /dev/fb0: 1024x768 (LCD) /dev/fb1: 1920x1080 (HDMI) I want to be the same content simultaneously on two frame buffer output. Is there any way ?
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23 views

I want to increase the size of the close button on the openbox

I am using in the OPENBOX X- window. Was subjected to increasing the size of the title bar, it is the relatively small size of the close button. Can I file through rc.xml adjust the size of the ...
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15 views

chroot into a Linux with X window system installed, from a Linux without X window system, and then run xinit, there is no mouse and keyboard working

I have two systems on my machine. One is Ubuntu and the other one is Linux from scratch (LFS) which I built it my self. Ubuntu has X window system installed but LFS has no windowing system ...
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26 views

how can i start xfreerdp on localhost?

I've installed Kali sana on my android tablet -lenovo a5500-hv- using Linux deploy and I use either vnc or xrdp to connect it to my android and have ability to use GUI But they don't support audio and ...
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38 views

Why is my system freezing when I try to unbind GPU from radeon?

Right now I'm trying to accomplish this: http://arseniyshestakov.com/2016/03/31/how-to-pass-gpu-to-vm-and-back-without-x-restart/ I've gotten everything on the host to work. DRI_PRIME is working ...
3
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0answers
21 views

Where does Linux vncserver (Xvnc) get the list of geometry possiblities

I have looked through through parts of the code, and the places obvious to me, but I have not found the place that I can add legal geometries for a vncserver that I can set using xrandr. I have tried ...
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151 views

startx fails fedora 23

Under Fedora 23, I cannot start the X server by normal means. How can I fix this? I am aware that there's no shortage of similar problems reported over the years, but so far none of those fixes have ...
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2answers
48 views

X11 forwarding fails when switching users

X11 forwarding works when I am logged in my CentOS 6.6 cluster as myself (using ssh -AY user@ipaddress). When I try switching users, e.g. sudo su user2 and try to fire up xterm, I get the error : ...
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33 views

Opencl only detects 1 gpu instead of 2

I have an ubuntu 14.04 setup with r9 390 and the r9 nano. aticonfig --list-adapters detects both the r9 390 and r9 nano. The nano is connected to the motherboard via a 1x to 16x pci-e USB riser. When ...
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1answer
34 views

new debian installation doesn't like showing native resolution of display

EDIT: not sure if I can delete this? Everything corrected itself once I turned the other pc off. Seems interference was happening across certain wires. (Still wouldn't mind knowing what the ...
3
votes
1answer
145 views

How do I make “startx iceweasel” launch full-screen?

I've done a clean install of Raspian Lite on my Rasperry Pi (there is no desktop environment installed). I'd like a kiosk-mode browser running fullscreen without having to worry about ...
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51 views

Unresponsive Java Application with ssh X forwarding

I have an X session forward via ssh. I run a Java jar application (Apache JMeter) on the remote server. It functioned really well with acceptable lag until today. Recently has become really ...
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42 views

How to add xeyes to the taskbar

Hoping my question is not regarded as silly, I would like to know how, if possible, I can attach the xeyes utility to the task bar. I do not simply want an icon on the task bar for launching xeyes, ...