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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Headless Debian Server + Windows Clients + X11 Forwarding

I have a headless debian server that I SSH into regularly. I want to know set it up so that users can ssh in and then run something like iceweasel, and a window will popup on their machine which is ...
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290 views

How should I start X after ssh'ing into a remote box?

I am trying to syncronize my clipboard with a remote machine using XQuartz and xsel. It works, but only after I run an X windows program: connecting from Mac OS X with Quartz running and the ...
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878 views

Can't start X window because reporting can't find a valid framebuffer device

Can't start X window because reporting can't find a valid framebuffer device. Here is the error output below: "X Window System Version 7.1.1 Release Date: 12 May 2006 X Protocol Version 11, ...
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637 views

Change default title bar icon

How do I set the default title bar icon for X11 applications? The xterm on my machine is displaying an icon with a red x instead of the normal application-default icon. Changing themes in gnome ...
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X11 forwarding through SSH

I have been playing around with X11 forwarding the past few hours and so far I've managed to forward my desktop pc's X Server to my laptop, using X11VNC as server and X2VNC as client. X2VNC uses ...
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432 views

Swap alt and windows key except when using an external keyboard

On my laptop the Alt and Windows keys are in the opposite positions that I'd prefer them in. Swapping them is fairly easy. However, my external (USB) keyboard has the Alt and Windows keys in the order ...
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367 views

how to deal with keyboard-greedy apps

I'm having a very specific problem, however any help will aid in understanding X's relationship to the keyboard. I'd like to be able to launch the ElectricSheep program on top of music playing from ...
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1answer
917 views

Disabling or changing console switching keys

For some reasons on my Ubuntu 11.04 Natty running Linux 2.6.38-13, with an Italian layout for the keyboard, the keystrokes AltFx switch between virtual consoles (instead of the normal CtrlAltFx ...
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448 views

What happened to the GLP OpenGL extension?

I need to do headless hardware accelerated server rendering using OpenGL and found out that this is possible with pbuffers and frame buffer objects (FBO). But today these approaches still need a ...
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How to make X less sensitive when right clicking?

Whenever I right click in X, I almost always seem to trigger the first option in the menu unless I am thinking about what I am doing because I: Mouse down; menu appears Accidentally drag mouse 1-3 ...
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Single set of keyboard shortcuts for copy/paste/cut across all X11 applications

A common quibble that I have when I'm running X11 on a Linux system is that there doesn't seem to be any X11-wide keyboard shortcuts for copying and pasting. Ctrlc and Ctrlv work fine across most ...
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firefox launch failed: X11 connection rejected because of wrong authentication

I logged into a Linux server (RHEL) from an linux desktop. There is not any error message at login, but I failed to launch firefox and see the following error emessage: [myname@myserver ~]$ firefox ...
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Display X applications on an Android system

Host system: Android 3.2.1 Honeycomb Chroot system: Debian Testing lxde Hardware: Asus eee pad transformer tablet nvidia arm architecture Note 1: The Debian system boots on this hardware, thus it ...
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654 views

Which virtual terminal is a given X process running on?

When X starts, it searches for the lowest unused VT, and attaches to it. My problem is that when there are several running X processes, I need to be able to identify which one is the currently active ...
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1answer
5k views

Xvfb or Firefox throwing errors & gratuitously logging

per the answer to this question, I'm running Xvfb to make a virtual display so firefox will run on my CentOS server. (I don't need to see firefox or do any actual key or screen input/output with ...
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2answers
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Is there a way to remap the AltGr key to Ctrl with setxkbmap?

I've already checked the option section in /usr/share/X11/xkb/rules/base.lst but I didn't find an entry for AltGr...
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1answer
383 views

How set environment variable based on whether a GUI is available?

How can I set up my .bashrc such that the value of an environment variable changes based on whether or not the current session has access to the gui / windowing system? For example, let's say I have ...
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2answers
747 views

using SSH to connect to remote CentOS 5.6 server where Firefox running on server is very slow [duplicate]

Possible Duplicate: How to speed up X over SSH on a slow network connection? I've installed firefox on CentOS 5.6 and I'm using X11 SSH to remotely login to view the browser. Firefox ...
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1answer
1k views

Confusion about low frame rate with Nvidia GeForge, but hardware rendering seems to work?

All over the years I have always wondered why my Compiz animations on Gnome 2 are not as smooth as on my old Laptop running with Intel GMA 965. Maybe this is related to low frame rates. When I run ...
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1answer
2k views

Mint 12: synaptic package manager error

Yesterday I had the same issue, I solved it by running sudo synaptic But today I don't know what's happening, if I run gksu synaptic or gksudo synaptic they don't do anything. If I go to root and ...
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739 views

Is there a WinSpy++ like tool for Linux/X/GTK/QT?

When I was using Windows I have some times made a good use of WinSpy++ which allowed to point to a window or a control (a widget, a window element) to see details about it (including the values of the ...
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1answer
6k views

Error in R: Unable to open connection to X11

I just set up a fedora distribution on my computer and am slowly trying to learn how to work from the command line. I was testing R which went fine, except for some reason when I tried again I ...
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How can I run Yast with X and ssh?

I have an openSUSE machine which I log on to with ssh -X. I don't want to log in as root but I do want to run graphical Yast. Inside the ssh session sudo starts the console version of Yast. However, ...
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SSH not terminated after exit when there is X Forward program

After running X programs over SSH, SSH doesn't terminate after shell exit (have to use e.g. CtrlC to kill it). My guess is although the X program already exit, there is still some "connection" left ...
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1answer
548 views

Setting up a 3 monitor display?

I currently have a Radeon HD 5750 graphics card and an M3N78-PRO motherboard. I use both outputs of my graphics card for a 2 screen display. I use xrandr at boot to set up my two screens. However, I ...
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211 views

Configuring Touchpad/Trackball for X

I have just installed my gentoo with X11/Gnome. It works fine with the USB-Mouse, but neither the touchpad nor the trackpoint works. The docs I found seemed to be outdated and were not mentioning the ...
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197 views

Having xwin start by default on system boot

My system boots into a console, from which I can launch my gnome desktop by issuing the command startx. How can X be instructed to start by default upon boot? The commands /etc/init.d/gdm3 start and ...
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391 views

Virtual machines on different X servers

Is it a good idea to run virtual machine on a different X server? I can switch between them using Ctrl + Alt + Fx shortcuts. If my default X server hangs/crashes, I can still continue to work with the ...
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540 views

firefox process dies after ssh log out on remote machine

I need to run firefox on a remote host via ssh and keep process running even after ssh logout. I already have tried these ways: nohup firefox & screen disown -h But it seems these work only ...
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341 views

I've just deleted my /usr/share/X11/xkb/symbols directory and restarted, how come I can still type?

I'm running Linux Mint and I'm trying to edit my symbol files but none of the changes stick - I've tried restarting X and restarting the computer. Eventually I got frustrated and tried deleting the ...
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1answer
393 views

Remap Caps_Lock to Control in Solaris

I'm having the hardest time trying to understand how xmodmap works. I want to remap the Caps Lock key to Control. In an attempt to emaulate the answers shown here, I created the file .xmodmaprc: ...
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How to find out which X11 driver system is using?

How to find out which X11 driver system is using? For my chip openchrome is the best driver but I suspect that system is not using it. I just need at least 2D acceleration. How can I check? Here is ...
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Change Startx Default on Slackware?

I installed Slackware as a VM within Virtual Box. Host is Windows 7, if it matters. I have successfully installed guest additions and XFCE starts and runs cleanly with or without the guest additions. ...
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Why is my X11 app's save dialogue suddenly defaulting to “Recently Saved” in Places sidebar?

I make a lot of text files using a basic text editor (in the F15 with Xfce DE I use Leaf). Recently the save dialogue is defaulting the "Places" sidebar to "Recently Used" where before it was always ...
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1answer
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Is there any X windows system, which is HTML, CSS, Javascript? Such as Web Browser?

For dacades X windows system is either BASH, C or etc. But is there any X windows system or any wrapper which can interpret HTML, CSS, Javascript to general Windows system? I would like to build ...
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1answer
271 views

Is it possible to control window management in Gnome Shell using D-Bus?

I would like to programmatically be able to communicate with the Window Manager in Gnome 3, using D-Bus. The tasks I would like to accomplish are: listening for new windows get window flags (e.g. ...
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1answer
760 views

Application receives SIGKILL on system shutdown, why not SIGTERM?

We use our Java application under X that starts from /etc/X11/Xsessions.d/9999ngoma root@denis-laptop:~# uname -a Linux denis-laptop 2.6.32-36-generic #79-Ubuntu SMP Tue Nov 8 22:29:26 UTC 2011 i686 ...
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1answer
416 views

How to start AbiWord with full screen?

2.8.2-2ubuntu1.1 How can I set Abiword to always start with full screen?
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Fixing a broken X initialization

Here are the symptoms: On reboot of my Fedora 14 system, I get to the Fedora loading screen progress bar. The system seems to progress normally, then the nvidia logo flashes, a wait cursor shows, ...
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482 views

X11 Forwarding Problem Netscape

I have the following problem. A working verbose x11 forward request looks like this: remote server release: Red Hat Linux release 6.2 (Zoot) sh-4.1$ ssh -1 -vvv -l username -o "ForwardX11 yes" ...
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2answers
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How to speed up X over fast connection ? (especially over ssh)

What are recommendations on speeding up X applications over local fast (gigabit) connections? (similar question for slow connections) Currently I'm running over ssh -Y, which is fine, but I wonder if ...
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3answers
166 views

Making shortcuts cross desktop environment, possible?

I'm a big fan of keyboards, so a lot of thing a done by combination of keys, like open a file browser, web browser etc. Is there some daemon that can monitor my key presses, and launch some program ...
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1answer
19k views

Setting up X server on Centos6 minimal

I'm trying to install Centos6, but as it turned out, DVD I downloaded was just couple Mb too large (CentOS-6.0-i386-bin-DVD.iso) for DVD to carry. So, to save time and don't download DVD again, I ...
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2answers
670 views

If you SSH into another computer, how to access other X displays?

This is a query based on personal use. A troll in our local network had downloaded Crikey, the key-event simulator. He used it to simulate events on other computers, leading to unwanted things. For ...
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XAUTHORITY environ variable set repeatedly on every login

I am running a Suse Linux 11.04 system. My problem is that when I do a fresh login into a shell as root, a new Xauthority file of the form xauth***** gets created in the /root/ directory. Upon exiting ...
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Open GNOME session remotely through SSH

I have a laptop connected wirelessly to my home network. I'm planning on installing a CentOS server on my network, used for a web server, a file server, and experimentation. I want to access it from ...
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How to access X display from a cron job when using gdm3? [duplicate]

Possible Duplicate: Open a window on a remote X display (why “Cannot open display”)? I'm trying to run a cron job that needs access to my X session. I know my X session will ...
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1answer
1k views

What is the max number of x-clients?

I am developing an x-server implementation, and I want to make it as similar to the current one as possible. I read through the documentation, but I couldn't find anything specific. In particular, ...
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1answer
800 views

Fetching user input while running in the background

I am writing a script that prompts the user for input and does some processing afterwards. I was using read to get the data, but then I noticed that when the script is ran with a keyboard shortcut (I ...
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How do you configure numpad keys using XKB?

I haven't figured out how you configure XKB to use the numpad yet. I found the following in the "us" file. partial alphanumeric_keys modifier_keys xkb_symbols "basic" { name[Group1]= "USA"; ...