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Questions tagged [x11]

X11 is Version 11 of the X Window System, commonly used on Linux, BSD, and Unix systems to provide the lower level graphics, input, and window management API's that higher level desktops such as GNOME and KDE build upon.

X11 is Version 11 of the X Window System, commonly used on , , and systems to provide the lower level graphics, input, and window management API's that higher level desktops such as GNOME and KDE build upon.

The primary open source implementation is now published by the X.Org Foundation on the www.x.org web site. Version 11 was first released in 1987, and while many subsequent releases have occurred since, they have maintained backwards compatibility with the Version 11 protocols and APIs.

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179 questions
116
votes
12 answers

How can I prevent the warning No xauth data; using fake authentication data for X11 forwarding?

Every time I initiate an ssh connection from my Mac to a Linux (Debian) I do get this warning: No xauth data; using fake authentication data for X11 forwarding. This also happens for tools that are using ssh, like git or mercurial. I just want to…
sorin
  • 8,454
61
votes
11 answers

how to use xauth to run graphical application via other user on linux

My regular user account is, let's say, user1. I created separate user2 for some x application that i would like to run while being logged into x as user1 but in a way that will prevent it from read/write access to user1 data. I thought that i could…
Phil
  • 2,119
47
votes
8 answers

How to enable SSH X11 forwarding through additional server?

I have hosts A,B and C. From host A I can access through ssh only B. From B I can access C. I want to be able to run X11 programs on C and forward display to A. I tried this: A$ ssh -X B B$ ssh -X C C$ xclock Error: Can't open display: But it…
lexsys
  • 2,993
28
votes
6 answers

How do you swap the caps lock to control in xfce?

I used to have the caps lock and control swapped in GNOME, but when I upgraded to Ubuntu 9.04 I also changed my desktop environment to Xfce. I have the following line in my xorg.conf: Option "XkbOptions" "ctrl:nocaps" But that doesn't…
Marcel Levy
  • 773
22
votes
4 answers

How to configure D-Bus and SSH X-Forwarding to prevent SSH from hanging on exit?

I am attempting to run various Gnome applications via X11 Forwarding and SSH. Some applications will cause the 'dbus-launch' application to be spawned first. The problem is that dbus-launch doesn't close when the X application is exited, and…
taftster
  • 323
16
votes
2 answers

Can't Open Display - X11 Forwarding - Cent OS

Trying to access X11 my CentOS 6 x32 small Linode VPS through SSH Putty/Xming (enabled X11 forwarding on options). My windows machine is not the problem since it works with others CentOS Servers. X11Forwarding is enabled on /etc/ssh/sshd_config,…
jacktrades
  • 622
15
votes
5 answers

SSH X11 not working

I have a home and work computer, the home computer has a static IP address. If I ssh from my work computer to my home computer, the ssh connection works but X11 applications are not displayed. In my /etc/ssh/sshd_config at home: X11Forwarding…
azat
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15
votes
2 answers

Remote offscreen rendering

My research lab recently added a server that has a beefy NVIDIA graphics card, which we would like to use to do scientific computations. Since it isn't a workstation, we'll have to run our jobs remotely, over an ssh connection. Most of our…
redmoskito
  • 331
11
votes
3 answers

How do I programmatically test if it's possible to connect to the X server specified in $DISPLAY

This is a bit of a middle-ground between programming and server-admin, but this seems ultimately the most relevant place for it. I'm looking for a way to determine if the variable '$DISPLAY' is advertising an XServer we can actually connect to,…
Kent Fredric
  • 571
11
votes
3 answers

SSH-forwarded X11 display from Linux to Mac lost after some time

I have a new and vexing problem with ssh forwarding my X11 connection when logging in from a Mac (10.7.2) to Linux (Ubuntu 8.04). I have no trouble using ssh -X to log in to the remote machine and starting an X11-based application from that…
mklein9
  • 341
10
votes
1 answer

xf86OpenConsole: Cannot open /dev/tty0 (No such file or directory)

root@mazgalici:~# startx X.Org X Server 1.7.6 Release Date: 2010-03-17 X Protocol Version 11, Revision 0 Build Operating System: Linux 2.6.24-28-server i686 Ubuntu Current Operating System: Linux mazgalici 2.6.18-194.26.1.el5.028stab079.2PAE #1…
mazgalici
  • 257
9
votes
2 answers

How to find out the currently active linux virtual terminal while connected via ssh?

The situation is as follows. I have a multiuser desktop machine with Debian Linux 6.0 and an ATI videocard with one monitor connected. I have root access to it. There can be several KDE sessions started, like this: $ w 21:51:30 up ? days, 4:22, ?…
vadipp
  • 509
7
votes
4 answers

Karmic Koala (Ubuntu): enable remote x clients through TCP

It seems every version of Ubuntu has a different way to enable remote connections to the local X server. I'm asking this question, while I do my own research: how can I enable the X server listening to TCP port 6000 on my machine, thus allowing…
ΤΖΩΤΖΙΟΥ
  • 1,078
7
votes
11 answers

Is there a visual bell in Linux that works in X?

I know there is such a thing as a visual bell in Vim that makes the whole screen flash instead of beeping. Several terminal programs also have the same feature. I'm looking for a similar type of visual bell that will flash all of my screens, on all…
Neil
  • 2,589
7
votes
7 answers

Starting x11vnc remotely when X server is already running

I have a ubuntu linux machine that I have already logged into and X server is running (it is pass the login manager like gdm). I can access this machine through ssh. My goal is to start x11vnc on this machine and attach it to the X server that is…
Madiyaan Damha
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