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3
votes
2answers
33 views

Why do I keep getting a “cannot connect to X server error”?

I am using the FLIR camera with my Raspberry Pi and running it on a Raspbian destro of linux. I've followed the instructions on the Github page perfectly when trying to setup the raspberrypi_video ...
4
votes
1answer
33 views

switch window manager while running

Years ago (around 2000) I saw a guy at a Linux meeting do an amazing X-windows trick which I've never seen repeated since. While he was logged into his default window manager (let's say Gnome), he ...
1
vote
1answer
16 views

Check which display an application is using

The machine I'm working from has many active X displays (one standard X server and many VNC displays). It is also running a handful of GUI applications, which appear on an X display. Assuming I have ...
1
vote
1answer
47 views

NixOS: Screen connected over USB-C stays black

I've got a Dell XPS 13' (9350), with a Dell USB-C to HDMI adapter, connected to a screen. I'm running NixOS with XMonad. The screen (set to HDMI input) shows "no input signal" despite: xrandr ...
0
votes
1answer
63 views

“Could not connect to display :0.0” — what's the right way to fix this?

I have this error when I try to run an desktop app: No protocol specified QXcbConnection: Could not connect to display :0.0 Aborted I've seen a few question similar to mine but surprisingly they ...
3
votes
0answers
23 views

Ctrl+Alt+F6 to access a linux container?

By default, Ctrl+Alt+F1-F6 lead to a virtual console. A lxc container is running on my computer. How to configure the host so that Ctrl+Alt+F6 goes to the virtual console of the container? ...
37
votes
4answers
63k views

Is there a command to list all open displays on a machine?

When SSH'd locally into my computer (don't ask, it's a workaround), I can't start graphical applications without running: export DISPLAY=:0.0 If I run this first and then run a graphical ...
0
votes
2answers
663 views

import: unable to open X server `' @ error/import.c/ImportImageCommand/361

I am trying to run a python script to generate heatmap and clustering dendrogram. But I got an error message saying : import: unable to open X server @ error/import.c/ImportImageCommand/361 I am a ...
1
vote
1answer
31 views

How to Run `reinstall xkb-data` for Broken Installation in Live USB?

I would like to run the following command for the installation that has broken /usr/share/X11/xkb/symbols/us. Editing the file, restarting, just puts the false parameters there back again and again. ...
1
vote
0answers
24 views

How To Reload xserver After a Change in Keyboard Layout?

I do a change in my current keyboard layout English(US-Dvorak) but it does not react with the following code without changing back-and-forth to another keyboard layout, for xserver reloading # ...
4
votes
2answers
501 views

How do I screencap another Xorg display?

I started another X session from my current one like so: xinit xterm -- :128 An X session starts in display :128, xterm gets run in it and everything is fine. I switched back to screen :0 (the ...
3
votes
3answers
10k views

“Could not connect to display” in one user account

I have a GUI application written in Qt and I wanted to run tests by ssh (or Jenkins). There is only one user account, which allows to run it in display mode (ofc when I previously do "export $DISPLAY=:...
1
vote
0answers
26 views

Configure XDEC X server for running application in true color on remote X client

I have a DEC Unix v4.0, I want to run application remotely from my Unix, but when i do that, get this error: X Error of failed request: BadMatch (invalid parameter attributes) Major opcode of ...
1
vote
1answer
45 views

Cursor disappears after login on xubuntu

A friend of mine has moved to linux recently, but he has had an issue with locking his screen, and logging in. His cursor disappears, but it can still interact with the environment. He says that ...
0
votes
1answer
127 views

Remote headless streaming of GUI from Linux: X says “No protocol specified” before login

The goal: I want to stream video (i.e., to Twitch) of the graphical output of a Java program I'm running on a headless Linux box. I also want to be able to start this up remotely and without a ...
1
vote
1answer
47 views

Increasing a Volume

I used Gparted Live cd to resize a volume group and logical partition when i reboot and try to use lvextend –l +100%FREE /dev/vda5 i get this message : Path required for Logical Volume "–l" ...
0
votes
0answers
25 views

xmodmap and mod

I followed the arch xmodmap guide but I still have some question: for every keycode I have 8 entries: normal, shift, mode_switch, mode_switch + shift, altgr, altrgr + shift. Then other two which I ...
2
votes
4answers
5k views

Lost mouse pointer in XServer

Have tried many windows managers including TWM, xfce and Gnome, but my mouse pointer is gone. It is invisible, but it performs all the actions. If I do the right click the context menu opens and this ...
1
vote
2answers
3k views

Xvfb -screen --> Cannot establish any listening sockets - Make sure an X server isn't already running

I wonder, why isn't this working? $ screen $ Xvfb -screen :1 1024x768x16 & [1] 17540 $ _XSERVTransSocketINETCreateListener: ...SocketCreateListener() failed _XSERVTransMakeAllCOTSServerListeners: ...
0
votes
0answers
576 views

I can't boot up my PC, “MDM: Xserver not found”

I use Linux mint 17.3 xfce, and about ten minutes ago my computer started freaking out, I couldn't use the panel, move windows around, etc, so I decided to reboot my computer, and when I booted it up, ...
1
vote
0answers
462 views

Installing XBMC/Kodi and X server on FreeBSD

I couldn't find how to install X server and XBMC/Kodi on FreeNAS. So without any opinion if it's good or not, what are the steps to do it?
1
vote
0answers
73 views

Xrandr doesn't scale screen under Cygwin/X and Xming

The preamble: I have a very specific remote X client, that needs fixed resolution. 1280x1024, to say. And my notebook has 1440x900. And Windows aboard. So, the idea is to scale the output of the ...
0
votes
0answers
375 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 ...
1
vote
0answers
21 views

Simultaneous X Users on same machine [duplicate]

I've seen a few Questions for this but can't find anything useful or recent. Is it possible to have 2 people physically sat at a linux box logged with separate monitors/kb/mice? I've had to work ...
1
vote
0answers
22 views

Kill specific xsession

I have several xsessions started from several virtual consoles (through <Ctrl>-<Alt>-F[1-7]). I am in the need of closing the xsession, so that I can restart the xsession from the same tty....
0
votes
0answers
159 views

FBDEV(0): FBIOPUTCMAP: Invalid argument

I am trying to solve a problem with my video output via HDMI, a situation is as follow. I have device (BeagleBone Black) which runs on Debian Jessie 8.2, I developed an application in Qt5 which ...
0
votes
0answers
89 views

No X11 DISPLAY variable was set, but this program performed an operation which requires it. In running JMETER

I am trying to run the jmeter.sh using ./jmeter.sh but always encountering this error. No X11 DISPLAY variable was set, but this program performed an operation which requires it. i've already run ...
0
votes
1answer
59 views

Direct Xorg/Xserver manipulation without Desktop Environment

I'd like to create a GUI kiosk application, and ideally avoid the need to install a desktop. Is it possible to use Cairo/OpenGL to generate graphics in an application launched from the console ...
0
votes
0answers
26 views

Linux Mint Login Errors

I have had no past problems with linux, but seemingly (to me) at random when I booted up, it went to the login screen, then when I typed in my password it just put my mouse in the center off a black ...
0
votes
1answer
32 views

Maximize Window without Window Manager?

If I want to run GUI software on my Linux machine, I can do it without a window manager, but I can not discover a way to maximize the window. Is there a reliable way to maximize a window in an x ...
1
vote
0answers
47 views

Start from text mode + startx?

I'm trying to boot my Trisquel GNU/Linux distro directly from text mode, as I don't want to load the GUI if it's not necessary. I would like to work in tty1 until I type startx, which would start all ...
4
votes
3answers
2k views

How to disable X server autostart in Debian Jessie?

I have a remote machine running Debian 8 (Jessie) with lightdm installed. I want it to start in no-GUI mode, but I don't want to remove all X-related stuff to still be able to run it though SSH with ...
0
votes
0answers
30 views

May recurring X server issues be a hardware problem?

This is my first time asking a question here. Please correct me if I don't follow the process correctly. I also know that a similar question has been asked here - It was said though that the problem ...
48
votes
8answers
48k views

How to copy text from vim to an external program?

I'm trying to copy-paste some text from vim. I'm doing v to enter visual mode, then y once I selected my block. It appears to copy the text into vim's clipboard, because p will paste it. But in ...
3
votes
4answers
12k views

NVIDIA driver upgrade failed

I downloaded the latest(331.49), tried to install, but failed. I compiled the kernel module and at the end of the installation it said that it went successful. But on bootup it said: version mismatch, ...
6
votes
1answer
17k views

minimal X.org xserver installation on Debian Wheezy

I installed Debian Wheezy with no desktop environment as I would like to use lightweight dwm window manager instead. However, as a first step, I need to install xserver. I would like to install ...
1
vote
1answer
278 views

Can't enable proprietary nVidia driver on debian 8 with bumblebee

I am running the Debian 8.0 64bit (Jessie, the stable release) on my HP laptop. I am having hard time in installing the proprietary nVidia driver of my graphic card 01:00.0 VGA compatible controller [...
1
vote
0answers
24 views

Create a daemon to be started with XServer [closed]

I am working in Ubuntu 14.04. I need to create a daemon that will start when XServer is launched and waits for certain commands from another daemon after display manager is up. Up on receiving the ...
1
vote
0answers
50 views

Remotely start LXDE via SSH

How can I remotely (e.g. via ssh) start lxde on my linux box which has no keyboard and mouse but only a monitor attached to it? I can login via ssh fine.
0
votes
0answers
152 views

X server can't open display in Ubuntu

I'm not very familiar with the X server display but I'm trying to use a debugger program called DDD and it needs X server to open up to use it. I get this error when I try to run ddd: Error: Can't ...
0
votes
0answers
17 views

How is Xserver able to tell which device is a mouse or a keyboard?

In these days we don't have to create a custom configuration that sets our devices up, at least when it comes to Xserver. But sometimes you want to change some default parameters. When you do it, you ...
-1
votes
1answer
59 views

Have Raspberry Pi and Server occasionally ping each other to check status

Is there a way to have my Raspberry pi and my Server occasionally ping each other to check that they're still online, and if not, then email me to tell me? For example if my Pi pings the server every ...
0
votes
0answers
17 views

Remove the hostname in the title bar when running a GUI over X

From a RHEL machine, I'm connecting to another using the following: ssh -X user@remotemachine I then run a GUI application. In the title bar of each window, the hostname is displayed. eg. ...
1
vote
1answer
23 views

How (or is it possible) the Linux desktop X-Server from Terminal under an SU otherusername

I have a simple scenario to demonstrate the use-case for this question Login to Linux as currentuser start bash terminal xauth list $DISPLAY mint/unix:0 MIT-MAGIC-COOKIE-1 ...
1
vote
0answers
40 views

For linux (nixos) xserver using a macbookpro, what can I do to prevent movement of mouse while clicking

I have NixOs installed in my macbook pro. My problem is that the mouse is too sensitive. When I click, the mouse moves slightly, causing the click to happen at a different place. I observe that it ...
1
vote
0answers
111 views

Run script as root after autologin in X

I've got a public PC on which there are: 1 big screen 1 touchscreen, the user can touch it and navigate through a website the website is in fullscreen, right click is disabled and the keyboard that ...
1
vote
1answer
133 views

How to stop a second xsession on display :1

All the Google results give information about how to start a second xserver, or recommend stopping the display manager, However I don't wish to close all my displays, just the non-primary ones, ...
2
votes
1answer
1k 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 ...
1
vote
1answer
129 views

Unable to run Sugar on Arch Linux due to PyGIWarning

Installing Sugar environment on Arch. I just installed a fresh Arch Linux just to run Sugar on it. After downloading sugar from AUR using yaourt -S sugar I wanted to run Sugar using sugar-runner ...
0
votes
1answer
41 views

Xorg Xserver: query number of screens

How can I query the number of active screens of an xserver from a bash script?