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Questions tagged [x11]

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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Kitty X11 forwarding error

I used to use Kitty X11 forwarding by simply launching a GUI application from the command line. This used to simply start a new program in my windows taskbar which would behave similar to windows ...
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1answer
11 views

My Debian install gives me black screen on start up - it's a quick fix but it happens every time

My issue is a bit strange. I am running Debian GNU/Linux Testing Buster, and I'm very happy with it. However, it has one minor but persistent issue that I can't seem to figure out. Each and every time ...
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567 views

How to trick a command into thinking there is no X server running

I have this program that can run with both a text user interface and a graphical user interface. It lacks any command line switch to force one or the other, rather I guess it somehow auto-detects ...
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23 views

How to configure ssh to allow specifying a hostname/IP in DISPLAY variable?

I have an old application I'm trying to run on CentOS6 that uses a couple machines: abc1 and abc2. I log into abc1 and run the application, which ssh's to abc2, changes the DISPLAY variable to abc1:0....
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CentOS 7, VirtualBox, openmpi installation breaking GUI. Why?

I have a case where my installation of CentOS 7, hosted by a Windows 7 machine through an Oracle VM VirtualBox, is having its GUI installation crippled* by: yum install openmpi openmpi-devel In what ...
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1answer
13 views

X11 forwarding does not work if su to another user

I have a Red Hat 7.3 server running XVnc. On a Windows 10 desktop I have Putty and Xming installed. Putty is configured for X11 forwarding. When I SSH in as my standard/non-privileged user and ...
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1answer
34 views

Clear specific X buffer directly, without going through xsel or xclip

I am trying to completely disable middle-click for pasting from a buffer, using Radivarig's solution. Place this in ~/.xbindkeysrc "echo -n | xsel -n -i; pkill xbindkeys; xdotool click 2; ...
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1answer
35 views

Disable X11 window

I'm using wine (WineHQ) on a Ubuntu server to run a Windows program that pops up a window (just for status update, nothing clickable). In Wine, that is done by X11 forwarding. I'd like to disable ...
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45 views

X11 over ssh error: can't open display

I have a desktop and a server both running CentOS 7.5 and I run ssh -X from desktop to the server. After connection is made ~/.Xauthority file is written and I have $ echo $DISPLAY localhost:10.0 $ ...
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1answer
9 views

Firefox curly quotes broken in Helvetica, but not most other fonts and not in other apps?

In Firefox only (LibreOffice and Chromium work fine), and starting fairly recently, I've noticed Helvetica is rendering weirdly. Curly quotes are broken, but straight ones are not. Some further ...
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2answers
35 views

Get list of screen in display

I understand that a screen is identified by :D.S where: D is the display number S is the screen number I'm looking to list all screens associated with a display. I can get all the current displays ...
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keyboard : third level characters from language input ubuntu linux 18.04

linux ubuntu 18.04 : keyboard for language input problem : The default 'basic' (in my case English (US) ) seems to take priority over other language layouts for third level characters. If the ...
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177 views

“Could not connect to any X display” error when using screen with SSH

I am facing an issue while running some simulations on a server using SSH. ssh -X user@machine As the training process takes hours, I am running it on a screen. But after few iterations, the ...
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1answer
27 views

Calibrating a touch-screen on dual monitors (one touch one not)

I am using Debian 9. I have a little PC with 2 in-built monitors that I intend to use as a point of sale. It has one monitor facing the customer (non-touch screen) and one facing the cashier (touch ...
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1answer
20 views

Xorg won't load/consider a driver that is present in /usr/lib/xorg/modules/drivers/

Here are the drivers I have present on the system. ls -l /usr/lib/xorg/modules/drivers/ total 598 -rwxr-xr-x 1 root root 114176 Sep 10 12:43 ast_drv.so -rwxr-xr-x 1 root root 23552 Sep 10 12:43 ...
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X11 linux apps in xming - how to fix font and size?

I'm running LiClipse (a version of Eclipse IDE targeted at Python development) on a remote CentOS 7 host with X11 forwarding to xming on Windows 10. The application starts up fine, but the fonts are ...
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1answer
68 views

st terminal: copy on select and right mouse click to paste

https://st.suckless.org/patches/clipboard/ makes mousewheel to select and paste but I need copy on select of left mouse and then right mouse click to paste. and to extend, ctrl-v to paste. I use ...
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1answer
62 views

Exit X back to command line

I have a problem exiting X to get back to the command line. After starting X, ⎇ alt-⎈ ctrl-FN and ⎇ alt-FN seem to stop functioning. I tried to use ⎇ ...
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34 views

Why AddressFamily needs to be configured for X11 forwarding?

Amidst configuration for X11 forwarding thru ssh, it is required to add AddressFamily inet option in /etc/ssh/sshd_config as per this answer, to work. On RHEL 7.x box, that is used in our case, X11 ...
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1answer
152 views

MobaXTerm X11 forwarding issue with UNIX

Ran below commands on MobaXTerm: Using MobaXTerm terminal on windows laptop: > xhost +ulv78.abc.com ulv78.abc.com being added to access control list > ssh -l someuser ulv78.abc.com # RHEL 7.x ...
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Continually Being Logged Out

Recently I was asked to install the latest version of Ubuntu, which I proceeded to do. However, along the way it encountered problems with the software. So I am not sure whether the whole package has ...
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36 views

How to setup keyboard switching in Tigervnc via Remmina Remote Desktop

I know neither which component is malfunctionning here nor what are full list of used components, so sorry for fuzzy question. I am running VNC server on a headless Ubuntu box with tigervncserver. ~/....
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3answers
418 views

Is there a frame drop option in X11Forwarding?

I'm running a computer vision model on a headless remote VM (Ubuntu 16.04) over X11Forwarding with good ol' Putty and Xming as my Windows X Server. All is well but seems there is no frame drop if the ...
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23 views

How do I stop trackpad driver via xinput disable

If I enter the xinput list command into a terminal I get the following output. Virtual core pointer id=2 Virtual core XTEST pointer id=4 Synaptics TM3096-006 id=11 SynPS/2 ...
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How do I map control-[ to escape for all X applications

In the terminal and vim, control-[ (left bracket) are synonymous with the Escape key, and I've gotten very used to this, so I would like to have this mapping for all my X applications. How do I do ...
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1answer
24 views

How can I map two buttons to scroll emulation?

I have a Logitech Trackman Marble, which has 2 large buttons and two tiny ones. It also has no scroll wheel. Using this configuration from the Arch wiki, it is possible to configure one of the small ...
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1answer
107 views

XFCE/LightDM: Tearing-Fix vs. No Desktop After Logging in

I have Manjaro/XFCE/LightDM and a GeForce GT 710 and I followed this guide to get rid of tearing. I added those three lines to my X-configuration. After I log in in the greeter the screen only shows ...
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67 views

Stretch vmbox ubuntu window across two monitors

I have two 1920x1080 resolution external monitors that I attach to my laptop. I am running VirtualBox 5.2.18 with a guest Ubuntu Bionic Beaver 18.04 and a Gnome 3.28.2 desktop. I would like to ...
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1answer
31 views

What causes xserver output to go blank when switching to tty console?

I am trying to run two monitors using two graphic cards. The first monitor is used for TTY, the second monitor is used to launch xserver. When I launch xserver, I still have my other screen showing ...
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1answer
52 views

Backing store when mapping/unmapping an X11 window?

My X11 client/server are set up to use a backing store (backing_store = WhenMapped), which works fine when my window is partially obscured: remove what's obscuring the window and the now-visible part ...
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2answers
96 views

prevent Qemu / Spice from grabbing keys that are bound elsewhere

My setup: Qemu with Spice display managed by libvirt running on Linux with X11. I’m looking for a way to preserve key bindings in the window manager and the X server when a Qemu client is focused. A ...
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1answer
153 views

cygwin putty Startup Error: Unable to detect graphics environment

When I start cygwin/X X Server (1.17.1-2) and then putty with x11 forwarding enabled (X display location set to localhost:10.0 and MIT-Magic-Cookie-1 ticked) I still get the error Startup Error: ...
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71 views

Can't start Spyder over VNC (TinkerOS, debian)

I'm trying to configure my Asus Tinkerboard running TinkerOS which is based on Debian. Currently I would like to run spyder 2.7. This all works great when I connect the board to a monitor, but when I ...
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29 views

WSL: Redirect links to host

As Windows is missing a nice twitter client I'm using WSL, with X11 forwarding to get Corebird running on my Windows 10 host. The question is: Is it possible to redirect the click on a link within ...
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41 views

How to remotely log off an xfce session from ssh?

I would like to log myself off my xfce session when I attach to my machine remotely. It's because sometimes I leave a program or two running that holds locks on files that I'd like to work on from a ...
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1answer
406 views

Can't run startx on tty

I recently switched from win10 to Ubuntu because I don't use it for gaming anymore. When I installed it, I only had access to my desktop(gdm3) but a resolution of 800x600 which looked awful. Now that ...
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1answer
33 views

web browsers zoom in by default in Ubuntu 14.04.5 LTS

I'm experiencing a weird behavior where both Chromium(version 61.0) and Firefox(version 54.0) seem to zoom in by default while other applications do not. For example, here I have the same png image ...
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0answers
12 views

setxkbmap with a 3 key toggle [duplicate]

Can someone help me to set my keyboard layouts so I can toggle between English and Russian using Ctrl+Win+Backslash. I'm trying something like: setxkbmap -layout us,ru -option -option "grp:...
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0answers
58 views

Pipe VNC viewer output to /dev device

Using VNCTiger as a VNC viewer, how can I pipe/forward (correct terminology?) the output to one of the /dev devices like video0? At the moment I use a basic vncviewer command to get the output, as ...
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0answers
23 views

Java locks mouse under X11 - how to reset?

I frequently run a Java application, and once in a while, for unknown reasons, the mouse stops working. Specifically, the mouse pointer moves with the mouse but clicking or scrolling don't work ...
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1answer
31 views

How can I disable the history in `xclipboard`?

If I run xclipboard to keep a persistent CLIPBOARD, there is automatically a history created of all the content which was in the CLIPBOARD at some time. How can I disable the history?
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1answer
37 views

Is there a system-wide way to prevent Num Lock?

My keyboard is configured such that Num Lock replaces certain alphabetical keys with numbers when Num Lock is on. There is also no Num Lock indicator light, which makes Num Lock cause confusion when ...
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1answer
81 views

Unable to run Visual Studio Code with GUI when using a Singularity container: Get gtk, dbus and dconf errors

I am trying to avoid installing lots of dependencies of another software (Blender) on my laptop running an Ubuntu 16.04. Therefore, I decided to I build a Singularity container that has those ...
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0answers
601 views

Xorg broken xf86EnableIOPorts: failed to set IOPL for I/O (Operation not permitted) No devices detected

I am trying to use Xorg instead of Wayland on my Arch Linux. I have two graphics cards in my laptop. An Intel and a Nvidia graphics card. The output of my log file is: [ 53.401] (WW) Failed to ...
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Deiconify an application does not update its content with Mutter and X11

I have a java graphic application using Swing library. If the application is minimized and the graphic content changes (color or whatever), I should see the modification when restoring the window. ...
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111 views

Linux Mint 18.3 upgraded to 19 - Screen now distorts with open-vm-tools-desktop

Except this singular issue, everything works wonderfully. I already tried apt-get purge open-vm-tools open-vm-tools-desktop but it didn't help. This is what I'm seeing after upgrading. The Y ...
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0answers
69 views

Can I forward X11 over ssh on an rented host without forwarding support

I have a GUI program which has all necessary libraries to run on a rented Ubuntu host, but the host itself rejects attempt to set up X forwarding during the ssh connection using -X. strace shows the ...
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1answer
52 views

How do I avoid colour channel issues with 24-bit colour remote X11 with older Solaris?

When using CDE on older Solaris systems (2.5.x) remotely using XDMCP with TrueColor visuals, on-screen pixmaps are missing the blue channel and have the red and green channels swapped. This means ...
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1answer
60 views

Set signal mask of child process in Bash

Here's my problem - I'm trying to write a small wrapper script that adds a command line argument when Xorg is called (I don't have access to the caller's source.) It seemed simple enough, but the ...
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0answers
198 views

How to fix refresh rate issue in xrandr

I use a laptop with Nvidia Optimus, and I'm running the newest Void Linux. Following instructions on its wiki and the Arch wiki, I got the desktop able to render via the GPU rather than the iGPU or ...