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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Xorg Configuration for Unregistered Resolution

I have a monitor with native resolution of 1600*900_60.00, and the intel on board Gen3 Xeon video chipset (i915). when i do $> xrandr the 1600x900 resolution is not in the list. I tried to write an ...
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53 views

configure xscreensaver through X resource database

I want to get rid of the xscreensaver config file in my home .xscreensaver. I read in man xscreensaver, that: Options to xscreensaver are stored in one of two places: in a .xscreensaver file in ...
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Xinerama configuration on OpenSuse

Configuration: OpenSuse 12.3 installed from the Sage Live CD (http://www.sagecommons.org) Latest proprietary NVIDIA drivers Dual GTX580s Four displays (two per card) Displays in a 2x2 arrangement. ...
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Writing single-handed layouts for X

I know someone who'd really like to be able to type with only the left hand, so I had the idea of writing a layout which "switches" the sides of the keyboard when the caps lock key is pressed. For ...
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47 views

convert display to monochorme

My Asus netbook has Debian Wheezy. I came across a weird idea. How would it look if my display screen is monochrome. Is it possible to configure X11 to make the display monochrome?
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“Unable to connect to X server” after TTY login

I'm using Ubuntu 13.10. Whenever I login on the command line (tty1-tty6) I get the following output: Last login: ... Welcome to Ubuntu 13.10 ... Unable to connect to X server Unable to connect to X ...
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956 views

launch x11vnc on bootup

I am using archlinux version 3.10.27-1-ARCH on my remote PC and I would like it to launch x11vnc server on successful bootup. Though i can start the x11vnc server manually, I am having trouble ...
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112 views

SSH X11 forwarding put on a different monitor

Is there a way to use ssh and X11 forwarding with multiple monitors, such that one screen gets the remote session and one keeps the current session? Note: In case I didn't clarify, I meant forwarding ...
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110 views

Filter the clipboard content without using an intermediate file

I'm trying to modify the text that is in my clipboard, remove certain lines of that contains some strings and then get the output for further manipulation (I prefer coping to my clipboard only if I ...
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194 views

Debian: How to resolve Xserver failure

I keep finding similar posts online but I can't really use the solutions in my case. in my /etc/bash.bashrc file, I have the following code placed at the very bottom: if [ -e /tmp/.X0-lock ]; then ...
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2answers
93 views

Why does the bell character have a limit?

If I repeatedly execute echo -e "\a" it will only sound on regular intervals rather than every time I execute the command. I've tried shortening the duration using xset but this doesn't seem to ...
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135 views

What is a windowing system?

Can someone provide me with a very clear and practical example of a "windowing system"? I was reading on Linux, and although I've always known that it's a kernel, I didn't really know what a kernel is ...
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611 views

Running GUI application as another (non-root) user

Let's say I have 2 user accounts user1 and user2. When I login as user1, and then switch to user2 using su, I can execute command-line programs, but GUI programs fail. Example: user1@laptop:~$ su - ...
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778 views

Set default window manager (i3) in OpenSuse

How do I set the default window manager in OpenSuse in CLI? I've a CLI installation and would like to set i3 as default window manager...
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6k views

X client forwarded over SSH “cannot open display: localhost:11.0”

I have enabled X forwarding on remote machine where SSH server is running: # grep -i forward /etc/ssh/sshd_config X11Forwarding yes # On local machine, I have started SSH client with -X flag ...
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Before logging in my system, any way to make a key simulate another key?

In my keyboard I button doesn't work. I had earlier asked a Q on how to make a key simulate another key. That Q solved the issue only after I logged in my system. I'm working on Ubuntu 13.04. But how ...
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2answers
1k views

How to configure fonts on a remote X connection (XDMCP vs. ssh)?

Connecting to a remote Solaris 10 system over X11 I observe inconsistent behavior regarding the used fonts. I am connecting from a Cygwin/X system. When I connect using ssh forwarding like this $ ...
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764 views

How do I get my mouse back from qemu/kvm?

I'm running qemu/kvm on Debian testing x64 with this command: kvm -m 1024 -hda win7.img -cdrom win7x86.iso -boot d -net user but when I click inside the virtual machine, qemu captures my mouse and ...
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226 views

how to swap ctrl and capslock using xmodmap?

I know this xmodmap script can swap ctrl and capslock: remove Lock = Caps_Lock remove Control = Control_L keysym Caps_Lock = Control_L keysym Control_L = Caps_Lock add Lock = Caps_Lock add Control ...
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369 views

Disable ForwardX11Timeout without ForwardX11Trusted in OpenSSH Client?

By default, recent versions of OpenSSH automatically set ForwardX11Timeout to 20 minutes if you set ForwardX11Trusted to no. This means that 20 minutes after you start your ssh connection, you can't ...
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1answer
102 views

After upgrade, X button in titlebar no longer closes xterm

In theory, pressing the close button should close an xterm. It did before I did an aptitude upgrade. (I'm running Debian testing). But now it doesn't—clicking the X does nothing—but only for some ...
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87 views

Notify-send not working when run from apache [duplicate]

I have the following script (alert.sh) which has been setuid'd: DISPLAY=:0.0 notify-send --urgency=low -i python "The job has finished" and the following PHP file alert.php: <?php echo ...
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149 views

Doubts about creating a .Xresources file.

I want to customize the look and feel of my xterm and have read that the way to do it is creating a .Xresources file and saving there the desired configuration. I've also learned that this file can ...
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1answer
357 views

Remapping power key to delete

I have a macbook pro running Ubuntu 13.10 with FluxBox. Unfortunately, the power button is physically above the backspace where I would expect the delete key to be in. In OS X, the PowerKey program ...
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120 views

Running an app minimized on a system with a minimal X server

I run X on Ubuntu minimal using xinit. I now want to launch spotify in minimized mode as it's remotely controlled and I don't want it to be visible. I also thought about installing a small window ...
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1answer
93 views

Cron does not execute xinit command

I have a command that works perfectly when launched from the prompt: xinit /home/user/myscript.sh -- /usr/bin/Xvfb :1 -screen 0 1x1x8 But is not executed when put in crontab: @reboot xinit ...
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224 views

How to mirror two screens / nvidia graphic pilot / LMDE / Macbook 2008

I'm using LMDE on a MacBook 2008; it works perfectly (and my MacBook runs much more faster than with Mac OS X) I have one problem: when I plug in an external display, I can't get the two displays to ...
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127 views

How do I run this C program after starting X server?

The source for a program that automatically scales my laptop's keyboard brightness to its screen's brightness is given on the Arch wiki page for my laptop. I can compile it and when I run the program ...
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1answer
61 views

How do you make a star symbol with the compose key in Linux?

I know how to make a heart with this sequence: composeKey, <, 3 But how do you make a star ★?
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1answer
74 views

How to make a key simulate another key?

In my keyboard the I key doesn't work. So, I use an on-screen keyboard. I'm using Ubuntu 13.04. But its hectic. Is there a way so that I can make another key (for example Home on my keypad) to behave ...
3
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1answer
716 views

Launch a fake/minimal X session for Pulseaudio/dbus

I use Pulseaudio to share audio between a desktop and a Raspberry Pi. However, Pulseaudio needs dbus, and dbus needs an X session. Without graphical session, Pulseaudio is only able to run in system ...
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1answer
210 views

Change keyboard layout using Cyryllic character

I'm using Lubuntu 11.10. I tried the keyboard layout applet from lxpanel but it does not work and I don't know why. I can change the layout to Russian using $ setxkbmap ru and it works! Nice! ...
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1answer
365 views

Get screenshots of a Linux machine that I connect to remotely with PuTTY

My setup is this, I connected my Cent box via PuTTY on windows 7, I've Xming and using X11forwarding to have GNOME in windows. Now when I did gnome-screenshot in putty, I cannot have the CentOS ...
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2answers
388 views

Disable the external keyboard from a script

I have a udev rule for my external keyboard. I can catch events, and by running a script I can also reach udev env variables. Can I disable keyboard with udev? Or must I use a script to disable the ...
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1answer
365 views

Have you seen this cat?

I am of course referring to the 'screenmate' cat, Neko - looks like this: A few years ago, I remember Neko could follow my mouse cursor around, and was a helpful distraction from during long hours ...
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111 views

switch to an existing Terminal Emulator using command (wmctrl) or shortcut key

It's rather hard to do it. wmctrl needs to know the window title in order to operate on it, but it is damn hard to know the title of any terminal emulator, be it gnome-terminal, rxvt, xterm... ...
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1answer
53 views

Can't obtain the connected forms of some unicode grapheme clusters with combining diacritical marks

In Arabic and some other languages a character has two or three forms which will find its appropriate one automatically when you type a word (according to its previous and next characters). How can ...
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1answer
242 views

Running a Wine application from other user in openSUSE

diuban@linux-gnwf:~> gnomesu -u diub wine /home/diub/ed.exe wine: cannot find L"Z:\\home\\diub\\ed.exe" diuban@linux-gnwf:~> No protocol specified No protocol specified Application tried to ...
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414 views

Octave - warning: unable to open X11 DISPLAY

My setup is as follows: Octave 3.6.4 Mac OS X Mavericks 2009 Macbook Pro I'm trying to run Octave in Terminal, with gnuplot. I'm trying to plot matrices in a graph, as part of an online Coursera ...
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1answer
148 views

How do I set the tty that GDM spawns on?

On my computer (under Arch Linux), GDM is spawning on tty1 while I would like it to spawn on tty7. Is there any way to do that?
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1answer
365 views

My ~/.Xresources is disabling gtk antialiasing

When booting into my window manage (xmonad), gtk fonts are anti-aliased, but for some reason urxvt has problems with variable names in my ~/.Xdefaults (it fails to parse the variable names as colors ...
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3answers
443 views

HTML client for X11 ssh forwarding?

Not totally sure if this is the right place but here goes. I understand that you are able to use X11 to ssh to GUI's and view them, without the server having a full on GUI system running/installed ...
2
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1answer
105 views

CapsLock as modifier key for application keymaps

I am developer and currently I am using Ubuntu Linux with PyCharm IDE for development of website. In order to improve typing performance I consider change CapsLock to Hyper_L and assign it to mod3 ...
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3answers
186 views

How to execute applications in existing X window from virtual console?

I run Debian Wheezy and have Xfce as my X-Window Manager on virtual console 7, which starts up automatically. Once I've logged on and I'm using the xfce interface, is it possible for me to press ...
2
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2answers
148 views

Adding custom Compose key sequences

How can one add custom Compose-key sequences? I have googled quite a bit, but could not find an explanation. In particular, I would like to have: <Compose> + <Z> + <Z> = ℤ # ...
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1answer
78 views

How to maximize a window programmably in X Window?

I'm wondering if there is any commands or programs to make some window maximized in X Window? For example, what I imagine is something like this xmaximize -window *window_id*
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2answers
350 views

How to set a custom keymap and make sure, that it is not overwritten by system?

I use custom keymap, that diffentiates between left and right Ctrl: remove control = Control_R clear mod3 add Mod3 = Control_R When I load it with xmodmap myxmap, it works only as long, as one of ...
3
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1answer
178 views

Invoking PolicyKit/polkit via xinit/startx?

I recently upgraded a minimal installation of Ubuntu (with no full-fledged DE) from precise to saucy and since doing so I'm no longer able to mount removable drives as a normal user. I googled a bit ...
4
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1answer
498 views

remove title bar of another program

I have developed a program with glut library and want to remove its title bar. Since its impossible to remove the title bar from glut library I have to use an external tool to remove its title bar. ...
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396 views

How do I make themes apply to windows as well as system elements?

I am using Linux Mint with Cinnamon. Whenever I install a theme, it changes the 'system' elements, like the menu and taskbar, but not the window borders or buttons or the like. I went on the 'Other ...