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.

learn more… | top users | synonyms

1
vote
2answers
2k views

Cinnamon failed: desktop only, no panel, no dialog frame

I am using Linux Mint 14 (MATE) with Cinnamon installed. Cinnamon failed when I tried to delete an item on the menu with menu editor. The system froze, so I logged out by pressing Ctrl+Alt+Delete. ...
1
vote
1answer
21 views

emacsclient connection refused

I am running emacs in daemon mode and I got dissconnected from the server on which it was running. After re-connect, when I run emacsclient -nc I get the error connect localhost port 6012: ...
1
vote
1answer
20 views

Inverting FN keys

My notebook is equipped with one of those fancy multimedia keyboards where you have to hold the FN key in order to use the classic function keys (F1-F12). Is it possible to invert this behaviour in ...
0
votes
1answer
25 views

Unable to start gedit from terminal

I use remote desktop connection & XRDP to remote to my Ubuntu 14.04 VM which is running Xfce. I can start any program from the Application Menu (diffuse, meld, gedit) but when I try to run those ...
0
votes
2answers
14 views

How to foword firefox graphics from remote to local system?

I have installed CentOS7 in virtualbox through vagrant. Both guest and host operating system is CentOS7. Guest operating system is minimum installation of centos7 with no graphics. On both system I ...
1
vote
1answer
21 views

Displaying X programs on remote systems

I have Ubuntu 14.04 and Fedora 20 as a test environment. I am trying to send X programs from Fedora to Ubuntu through an SSH session. My setup is as follows: On Ubuntu ran: Xhost +IP Address of ...
1
vote
0answers
13 views

Why does Caps Lock key behave as Caps Lock key without the Lock modifier?

At first, there is no key mapping. The Caps Lock key on my keyboard behaves as Caps Lock. lone@debian:~$ xmodmap -pke | grep Caps_Lock keycode 66 = Caps_Lock NoSymbol Caps_Lock lone@debian:~$ ...
1
vote
1answer
10 views

After mapping Caps Lock to Escape using xmodmap, how to revert Caps Lock back to Caps Lock without altering Escape key?

I have mapped my Caps Lock key to function as Escape using this command. xmodmap -e "remove Lock = Caps_Lock" -e "keysym Caps_Lock = Escape" Now how can I undo this mapping? I tried the following ...
0
votes
1answer
17 views

Is it safe to run GPG tools in x11?

Given the relative (anyone with my present user permissions can swipe scancodes) ease of keylogging in an x11 environment, should I run GPG tools only in the TTY?
3
votes
0answers
22 views

How to obtain mouse events from the kernel when X is active?

When switching to a virtual terminal on my system, The kernel successfully delivers mouse events to a generic input event interface -/dev/input/event6 in my case- as well as legacy interfaces mouse1 ...
1
vote
2answers
16 views

How are window-ids given out by MATE window manager?

While trying to write a script involving wmctrl ( since MATE on LMDE 2 doesn't offer as many advanced features as other WM configurations involving Compiz, which I don't have on LMDE 2), I came across ...
0
votes
2answers
29 views

X11 forwarding Amazon EC2 significance of sequence number in DISPLAY variable

I am X11 forwarding from an Ubuntu instance hosted in a Amazon EC2 to my localhost. I am able to do the forwarding only when the remote (Amazon EC2) DISPLAY variable is set to localhost:10.0 I ...
1
vote
1answer
706 views

Resolving circular dependency hell for libX11 and libXi

I'm trying to install X11 from source. Source files from some repository: libX11-1.6.0.tar.gz libXi-1.7.1.901.tar.gz libX11-1.6.0 paulk@node005:libX11-1.6.0$ ./configure --prefix=$HOME/software ...
6
votes
2answers
5k views

How can I get xrandr to detect both nvidia cards: 2 x GTX480, triple-head?

I am running Linux Mint 16 (Petra) I am running the default driver nvidia-319 shipped with the distro I have 2x GTX480 cards I have 3 monitors Using the Nvidia driver, all monitors and GPUs are ...
1
vote
0answers
13 views

Gnome - input source not working

I have Elementary OS and there is problem if custom keyboard layout should be added, because currently the switchboard-plug-keyboard uses hardcoded layouts from data/layouts.txt and does not scan ...
8
votes
2answers
7k views

How can I set the position that terminal opens at?

I'd like Terminal to open near the bottom of my screen. Is there a way to set the default size and position? I'm using Linux Mint 13, Cinnamon.
2
votes
0answers
16 views

System clipboard flushed out, once i exit vim

I use yy to access the system clipboard always. yy is mapped to a function as, function! Copy_ToSystemClip() .w !xsel -ob end function inoremap yy Copy_ToSystemClip()<CR> It copies to the ...
0
votes
0answers
92 views

Unable to operate mouse in GUI on Ubuntu Server in VBox VM

Mouse can't work on Ubuntu Server (minmal virtual machine mode) in VBox VM. I ran: sudo aptitude install --without-recommends xserver-xorg-core sudo aptitude install jwm startx output: -bash: ...
6
votes
4answers
43k 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 ...
2
votes
3answers
59 views

How can I copy text from xterm (Awesome, Debian, VirtualBox)?

I ran the minimal Debian installation inside a VirtualBox instance, installed X11 and Awesome window manager manually (without any custom configuration yet) and installed VirtualBox additions as well ...
1
vote
1answer
14 views

Keep aspect ratio true to the mode

I've recently installed Linux Mint 17, replacing my ageing Mint 13 installation. I've got a 16:9 screen. In case it matters, my graphics card is an NVidia GeForce 210. Now back in Mint 13, if a game ...
1
vote
2answers
22 views

Enabling X11 forwarding permanently

I have a PHP program and in order to run a batch file, I have typed: $> xhost + $> ssh username@hostname -X $> ssh username@hostname -Y And, it works fine. But, my problem is that when I ...
4
votes
1answer
104 views

How to debug what blocks a key sequence in urxvt?

According to this port, i made these configuration in my .Xresources for urxvt: URxvt*keysym.Control-1: \033[27;5;49~ URxvt*keysym.Control-2: \033[27;5;50~ ...
14
votes
4answers
12k views

How can I set mouse sensitivity, not just mouse acceleration?

I can't find a single desktop environment that supports setting both mouse acceleration AND mouse sensitivity. I don't want any mouse acceleration, but I want to increase the speed of my mouse. That ...
1
vote
1answer
34 views

How do I enable Shift Lock? (Sticky shift key)

I want to map one of my keys the shift lock key. In my understanding, the shift lock key is a kind of a 'sticky' shift key: it remains pressed, shifting all keys of the layout until pressed again. It ...
2
votes
1answer
722 views

Directx application using wine over ssh -x

I'm trying to run a Windows app (Artemis video game - server mode) on my archlinux server. As it is an windows application I have to run it using Wine. As I'd like to be able to launch the server ...
0
votes
0answers
40 views

X stopped working

A couple of weeks ago I made a system upgrade (aptitude upgrade) on my Debian Stretch x64 system. I finished my session normally, but since then I cannot access X anymore. When I turn on my computer, ...
1
vote
1answer
811 views

unlisted screen resolution

on my new computer I have 2 screens connected on the igpu of a i7 processor, 1 using hdmi. the other using dvi. Both screens are the same but 1 has a wrong resolution inside X, and it can't be ...
2
votes
1answer
357 views

What does this `xhost …` command do?

Please help me understand this line of command: xhost +SI:localuser:lightdm in reference to the answer in this post and also suggest if there's a better way and why that's needed. I couldn't make ...
3
votes
0answers
988 views

Security of xhost (local) and sudo xauthority forwarding

Context: launch a GUI application as a linux service. I considered making a headless daemon with a GUI front-end but there is too much code involved to do it now. This service must start on user ...
2
votes
0answers
62 views

Difference between 'xhost + ' and 'xhost +SI:localuser:AnotherUser'

If I do xhost + >access control disabled, clients can connect from any host su AnotherUser -c xterm an xterm popups, but if I do xhost +SI:localuser:AnotherUser >localuser:AnotherUser being ...
6
votes
4answers
99 views

Insert both characters if a dead key combination is not recognized (e.g. 'a → á, 'b → 'b)

When I use any variation of English, US international (with dead keys,altGr dead keys or alternative) on my Linux Mint machine I always encounter this behaviour. When I press one of these keys: ' " ...
0
votes
3answers
1k views

Arch linux: set keyboard layout to PL

I'm unsuccessfully trying to force my Arch to set pl layout on X start. I've googled for solutions, and I found couple of tutorials/tips but none of them works. My current, keyboard related ...
7
votes
3answers
17k views

Why can't I run GUI apps from 'root': “No protocol specified”?

I installed debian onto my machine last night. Now, I don't understand why I can't run GUI apps from a terminal when running as root. For example: sudo -i glxgears Generates the following output: ...
0
votes
0answers
27 views

su success, but says No protocol specified

I can successfully log in as root on Debian Jessie as follows ...:~$ su Password: No protocol specified root@... It's a fresh installation, just a few applications added so far. I just had to do ...
1
vote
0answers
16 views

Debian - X11 not displaying until switching VTs

I am trying to make my own very light Debian-based system, using Fluxbox as window manager and Slim as login manager. I just added Slim but I had a problem before that, being that X11 worked ...
2
votes
1answer
198 views

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 ...
2
votes
2answers
37 views

Using reverse SSH tunneling in one step instead of two steps (with -X)

Suppose we have three hosts: miki - my computer behind a NAT vps0 - my VPS mum - computer of my mother, behind a different NAT. The task is to connect from my computer to my mum and keep X11 ...
1
vote
1answer
859 views

Certain fonts missing from xlsfonts in Centos 6.4

I have a certain software on CentOS 6.4 that gave the following error: X Error of failed request: BadName (named color or font does not exist) Major opcode of failed request: 45 (X_OpenFont) ...
2
votes
1answer
18 views

Using remapped Left Control <LCTL> key as shortcut

I have remapped the <LCTL> key to Tab in /usr/share/X11/xkb/symbols/en using key <LCTL> { [ Tab, Tab, Tab, Tab ] }; key <MENU> { [ Alt_R, Alt_R, ...
0
votes
0answers
24 views

Installing libx11-devel from source, error in string.h

I'm running Linux version 2.6.32-504.8.1.el6.x86_64 (mockbuild@c6b9.bsys.dev.centos.org) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-11) (GCC) and trying to install libX11-devel from source on a ...
0
votes
0answers
18 views

How to detect whether a window is in focus?

I'm not experienced in scripting but I've made this script: #!/usr/bin/env bash # hint: use "xdotool getmouselocation" to get values if xdotool getwindowfocus getwindowname | grep -Eq " - ...
6
votes
3answers
397 views

Tuning keyboard (dead key) functionality in X

My preferred keyboard configuration is US-International. When I use it on MS-Windows and type certain special characters (i.e., ~ ' ") followed by a, o n I get á ó or ñ as I wish. However when I type ...
2
votes
0answers
59 views

X11 controlling root window or setting a window to be the background window (wallpaper)

I would like an animated background image. Or better, to make an application be the background, with no interactivity, so I don't accidentally click on it. I've seen many discussions about setting ...
0
votes
0answers
19 views

Create shortcut in Windows to launch xterm on remote server via SSH and X11 Forwarding

I am not sure if this should go in Windows, but I figured the Unix section would know more about this. I am running a CentOS VM on my Windows 7 host and would like to have the ability to simply ...
3
votes
1answer
670 views

Laptop keyboard occasionally stops working

I have a dirty solution that is to plug a USB keyboard in and execute the following command: setxkbmap -rules evdev -layout us -model evdev Afterward my keyboard will work. This solution only ...
1
vote
1answer
134 views

Why is my R graphics device not refreshing and gets drawn so slowly through VNC?

The plotting speed of the graphics device is extremely slow when I use a VNC connection. The rest of the connection works perfectly fine so I cannot blame the network, it is specifically R devices ...
1
vote
2answers
52 views

Swap shift and caps-lock

I would like to swap the behavior of the two keys Shift and Caps Lock on my keyboard. I have read the options in /usr/share/X11/xkb/rules/base.lst, played around with'em, but none of them seems to be ...
1
vote
1answer
2k views

Trying to get firefox running on CentOS 6 minimal iso - can't open display

I've got minimal CentOS 6 running on an Oracle VirtualBox on a Mac. I'm trying to get Firefox up and running so I can download some web files into the VM. I installed Firefox (yum --enablerepo=remi ...
2
votes
3answers
202 views

Change icon for an application form command line?

Is there a way to change the icon of an application's window from the command line? For instance, I'd like to have separate icons for Firefox windows under different profiles (different processes), ...