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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x11 Keeps Freezing Virtual Console

I have a problem on my Arch-Linux system. I use startx to start my GUI, and this issue occurs randomly throughout my day. There is no sign of anything going wrong (until I switch to a Virtual Terminal/...
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13 views

trigger a Control_Latch in X [closed]

hi I'm looking for a way to bind a control_latch event using some key or key combination. By control_latch I mean the ability to have a behaviour similar to a sticky control. So far I tried a bit ...
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2answers
123 views

How to create an X window which won't close by any way other than a terminal command

I'm trying to create a process that will start with X11, will be graphical and unkillable by my own user. More specifically, I have an urxvt drop-down terminal starting at startup and running a tmux ...
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17 views

Mapping CapsLock to Escape for Colemak layout

I use vim and I mapped CapsLock to Escape. Recently I decided to switch from qwerty keyboard to Colemak keyboard layout. Colemak maps CapsLock to Backspace. How can I map CapsLock to Escape back? In ...
4
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1answer
27 views

How can I make screen fade to black from terminal rather than just shut off?

I set up a hot corner that uses xset dpms force off to turn my display off. However, I want the fade-out effect to black that OSX has. How can I achieve this with a terminal command?
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3answers
77 views

What happened with X12? [closed]

Wikipedia says that "The protocol has been version 11 (hence "X11") since September 1987". That's almost 30 years. Why did the X protocol freeze?
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33 views

Maximising resources for a Raspberry Pi 2 while streaming Steam

I've set up my Raspberry Pi 2 to stream Steam games from my computer, however I would like to have a script that basically closes the X server completely before streaming so it's not using the few ...
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17 views

dual monitor support on a non-GNOME system

I have Ubuntu-14.04 with x11 drivers and lightweight WM installed on my laptop Toshiba Satellite Z930. I also have an external monitor connected to the laptop via HDMI interface. Currently, the ...
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1answer
47 views

Distinguishing between running a process in client terminal or on the server when using SSH [duplicate]

I'm new to Linux. I was trying to play a video on my laptop using SSH command from my android phone(JuiceSSH). but the video started playing in bytes in my phone's terminal. the player was VLC player. ...
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0answers
55 views

Adding a second GPU greatly reduces my graphics performance

I'm currently running Ubuntu 15 desktop with an ATI R9 390 and a 4k monitor via display port. Everything runs smoothly. I have a second monitor which is VGA-only, and since the R9 has no VGA ports, ...
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0answers
205 views

Cygwin/X DISPLAY number no longer :0?

I use Cygwin/X to ssh into a linux computer cluster using a Windows (10) pc. Yesterday I was in the middle of an ssh session using X11 forwarding. Suddenly one of the X windows open started to hang ...
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20 views

GDM not launching GNOME

So, I installed everything including Bumblebee, nvidia, intel drivers, and GNOME on my laptop. It worked fine at first. I noticed it said XServer could not be found while running nvidia-settings, so I ...
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1answer
305 views

How to get Debian Jessie to use the nvidia proprietary driver?

I followed the instructions in the Debian wiki to install the nvidia proprietary graphics driver on Debian Jessie via backports. Unfortunately, despite my best efforts, the X server will not use the ...
4
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2answers
606 views

How do I scale i3 window manager for my HiDPI display?

I have a Dell XPS 13 9343 2015 with a resolution of 3200x1800 pixels. I am trying to use i3 windows manager on it but everything is tiny and hardly readable. I managed to scale every applications (...
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2answers
118 views

Command to simulate keyboard input

Is there a command that exists that can simulate keypresses? I want to pipe some data to it to make it type into a GUI program for me.
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0answers
22 views

Querying X from a daemon [closed]

I'd like to be able to query the local X server and get the idle time of the machine. This would be run from a daemon that wants to act as soon as the user has been idle for long enough. Right now we ...
3
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2answers
43 views

Can I force screen blank and ignore input?

I want to force my screen to blank and to stay blank regardless of what I do with my keyboard and mouse until it receives a command to unblank (kind of like a lock). The commands I know are: xset ...
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2answers
60 views

Is the current screen resolution saved to a file anywhere?

I'm trying to do a low level set of functions to get and set the display resolution, and I was wondering if there was a file that contains only the used resolution and that could be used to change it. ...
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0answers
29 views

Freeze slide on external display (projecter), when using OpenOffice, and use laptop to do other (secret) thing

I am running kde on debian jessie (X11+Gnu+Linux). When doing a presentation, using LibreOffice (OpenOffice) presenter, the audience sees the external display, and I see the presentation console on ...
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2answers
30 views

Program run from udev cannot open a window [duplicate]

I have a script, written in python: #!/usr/bin/python3 from tkinter import messagebox variable = messagebox.showinfo('title', 'question') This python script does nothing else than showing a message ...
4
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2answers
75 views

What does it mean to set a terminal's “icon title”?

I generally see the syntax for setting the terminal title as (something like): echo -e '\e]0;Some Title\a' But I noticed this answer used 2 instead of 0, which prompted me to do a little more ...
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1answer
64 views

X11 authentication is not working in `sudo sux / sudo su`, but works in `sux / su.` Why?

I have a vnc session and I can access X11 just by doing su - user, for other user, without the need of sux. Also, when I am trying to switch to user, using sudo sux - user or sudo su - user, I can't ...
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1answer
55 views

What's the difference between X11 forwarding with `ssh -X hostname and xhost +hostname; ssh hostname`?

In both the cases, I am able to connect to X11. What's the difference? And is xhost +hostname permanent, even after the base terminal is closed?
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0answers
34 views

What is the equivalent of xset led 3?

I am using gnome on wayland on arch. I used to start my keyboards leds with xset led 3. How can this be accomplished while using wayland?
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1answer
22 views

How do I change the height of GIMP to less than 1266 pixels?

I'm having trouble editing in GIMP 2.8.16 because the window is much taller than my monitor, and can't be resized to anything smaller. From xprop: WM_NORMAL_HINTS(WM_SIZE_HINTS): ...
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1answer
35 views

Is it possible to run a thin client in virtualbox?

I have a Mac laptop for work. I would like to keep my personal stuff off of my work computer. Obviously I can just ssh to my home computer and/or tunnel X using Quartz. But this always feels clunky, ...
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0answers
24 views

Render everything in two colours

Is it possible to recolour everything on the screen, every application, web pages, menus, everything, in two colours (with intermediate shades, i.e. monochromatic)? Some document viewers support this....
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1answer
117 views

RHEL6 && OEL6 How is $DISPLAY determined on startup?

I'm experiencing inconsistent $DISPLAY variables on my OEL6 servers which have caused quite a bit of trouble with socket files. I have found surprisingly little on what actually sets the environment ...
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0answers
43 views

Elementary OS Run script at login

I have an old Thinkpad T400 and currently running Elementary OS. Since two finger scrolling does not work out of the box I have to run a command whenever I want it to be enabled. I found the command ...
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0answers
13 views

launching screen clears x11 clipboard

Every time I launch screen(1), it clears my X11 clipboard. This is incredibly frustrating. I assume there's some default setting I can disable? I haven't been able to find it yet. Using gnome ...
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0answers
22 views

display no longer listends to console after starting X11, not even after shutting down X11

From the console, or another virtual terminal, I launch X11. This is in Free BSD. I cannot return the display to any other terminal afterwards. By using the ctl-alt-F1 key combination, for example. ...
16
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1answer
216 views

How do I find out what program 'owns' a hotkey?

I'm running XFCE 4.12 on top of Gentoo with a 4.2.0 kernel. My PlayPause button on my keyboard used to work as a global hotkey for VLC. Now VLC won't even recognize the key. It does see "Alt + Media ...
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0answers
37 views

libvte unicode font handling

I am trying to display some ANSI text which contains characters from the Unicode private use area. I have two fonts which contain these characters. The first is a PCF (bitmap) font, and the second is ...
4
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1answer
96 views

When is the appropriate time to start Redshift using upstart?

I have been trying to get Redshift to start before login so that the bright welcome screen does not blind me, in particular when switching users. Running Redshift as a service does not seem fully ...
1
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1answer
48 views

lxde stop auto maximize vertical when moving window to right edge of screen

I am running lxle version 14.04.3. I would like to stop lxde from maximizing my window vertically when I drag a window to the right edge of the screen. Does anyone know how to change this setting?
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0answers
26 views

Permanently Configure two X Servers

I'm trying to permanently configure a second X server to start at runtime on RHEL 7. I am aware that I can start a second x server using startx -- :1 vt 2, but I'd much rather integrate it to the xorg....
3
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1answer
67 views

Please explain the output of ssh control command ~#

I'm trying to figure out why it is that ssh hangs on exit if, and only if, I login with the -X option and run X11 programs. I found a thread on Google groups which hints to the problem. The ...
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2answers
46 views

minimal window manager to enforce visual chroot and exit on application exit

I am trying to have a kiosk style setup on raspberry pi where only one application is available via VNC e.g. gedit or firefox. Using a guide like this http://gpio.kaltpost.de/?page_id=84 the setup of ...
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0answers
46 views

Stuck in failsafe xterm session

When I log in through the login screen, I'm presented with the following message: This is the failsafe xterm session. To get out of this mode type 'exit' in the window in the upper left corner ...
2
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1answer
85 views

Use xvfb to automate X program

I originally posted this question here, but upon second thoughts I decided here was a better place for this. I sadly have to use this proprietary program that bundles a camera driver. I want to ...
2
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0answers
49 views

Cannot run evilvte (VTE terminal emulator) as user - except via SSH

I have compiled evilvte from source, on an old Nokia N810 tablet. When I try to run it as user, it opens and then immediately closes. If I try as su root it works fine. I can also run run it as user ...
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0answers
75 views

Context menu position wrong gtk3 on hidpi

GTK 3 seems to have a problem with when running on hidpi screens outside gnome shell. I have dpi and screen dimension correctly configured via xrandr (192 dpi), i3 runs just fine. In /etc/profile.d/...
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0answers
25 views

why do I get “reason is: this server does not require authentication” in xpra

I 'd like to use Xpra as described on https://help.ubuntu.com/community/Xpra. However, I'm using the Xpra Windows client to connect but it doesn't work & and I keep getting an error message "this ...
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0answers
68 views

cannot launch konsole from xterm

I installed lxde & kde (along with konsole). now I launch xterm from a Windows host using Xlaunch(Xming) which works fine but when I want to launch konsole(my preferred shell) I get this error: :~...
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0answers
24 views

Start terminal when VNC starts and execute a command within the new display

How can I start a Terminal within the new Display, and execute a command in that Terminal soon after VNC's startup automatically?
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0answers
50 views

Run OpenGl program on remote server

I often use X11 forwarding (occasionally VNC) to work on a remote machine, and this has worked great. But now I need to run a program that uses a specific version of OpenGL that means it doesn't work ...
1
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1answer
304 views

How to keep gnuplot-x11 graph window open until manually closed?

For example, this keeps the gnuplot-x11 graph window open until a key is pressed: gnuplot -e "plot \"file\" ; pause -1 \"text\"" How to keep it open until manually closed?
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1answer
72 views

Change keyboard layout when using a keyboard or other

Well, I was deep reading into setxkbmap options and changing layouts posts, but I don't find what I need. The problems is the following: I have a laptop running Fedora 23 Cinnamon Spin, the laptop ...
3
votes
1answer
54 views

Xlib without X11? Any library or system is capable of doing this?

First of all, the X protocol can't be fully understood without a server-client architecture, but, however, most XWindow applications use Xlib and Xt in a way that could be encapsulated inside Xlib ...
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24 views

not able to remotely display X11 applications

I have a server o which I have shell & VNC access. I don't like VNC for my X11 applications but prefer to render them on my Windows 7 system with Xming. Now, I have setup a few application ...