Java Can't connect to X11 window server using 'localhost:10.0' as the value of the DISPLAY variable

Question

I have a script using java to connect to display X11 in the port 10.0 at localhost

but i get always this error

java.lang.InternalError: Can't connect to X11 window server using 'localhost:10.0' as the value of the DISPLAY variable.
    at sun.awt.X11GraphicsEnvironment.initDisplay(Native Method)
    at sun.awt.X11GraphicsEnvironment.access$200(X11GraphicsEnvironment.java:62)
    at sun.awt.X11GraphicsEnvironment$1.run(X11GraphicsEnvironment.java:178)
    at java.security.AccessController.doPrivileged(Native Method)
    at sun.awt.X11GraphicsEnvironment.<clinit>(X11GraphicsEnvironment.java:142)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:186)
    at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:82)
    at sun.awt.X11.XToolkit.<clinit>(XToolkit.java:112)
    at java.lang.Class.forName0(Native Method)
    at java.lang.Class.forName(Class.java:186)
    at java.awt.Toolkit$2.run(Toolkit.java:849)
    at java.security.AccessController.doPrivileged(Native Method)
    at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:841)
    at ij.io.Opener.openJpegOrGif(Opener.java:367)
    at ij.io.Opener.openImage(Opener.java:220)
    at ij.io.Opener.openImage(Opener.java:249)
    at ij.io.Opener.open(Opener.java:116)
    at ij.IJ.open(IJ.java:1112)
    at ij.macro.Functions.open(Functions.java:2006)
    at ij.macro.Functions.doFunction(Functions.java:129)
    at ij.macro.Interpreter.doStatement(Interpreter.java:205)
    at ij.macro.Interpreter.doBlock(Interpreter.java:515)
    at ij.macro.Interpreter.runUserFunction(Interpreter.java:278)
    at ij.macro.Interpreter.getFactor(Interpreter.java:1200)
    at ij.macro.Interpreter.getTerm(Interpreter.java:1162)
    at ij.macro.Interpreter.getExpression(Interpreter.java:1145)
    at ij.macro.Interpreter.getBooleanExpression(Interpreter.java:881)
    at ij.macro.Interpreter.getLogicalExpression(Interpreter.java:857)
    at ij.macro.Interpreter.getBoolean(Interpreter.java:850)
    at ij.macro.Interpreter.doIf(Interpreter.java:829)
    at ij.macro.Interpreter.doStatement(Interpreter.java:217)
    at ij.macro.Interpreter.doBlock(Interpreter.java:515)
    at ij.macro.Interpreter.doStatement(Interpreter.java:241)
    at ij.macro.Interpreter.doIf(Interpreter.java:831)
    at ij.macro.Interpreter.doStatement(Interpreter.java:217)
    at ij.macro.Interpreter.doStatements(Interpreter.java:195)
    at ij.macro.Interpreter.run(Interpreter.java:99)
    at ij.macro.Interpreter.run(Interpreter.java:65)
    at ij.macro.Interpreter.run(Interpreter.java:75)
    at ij.plugin.Macro_Runner.runMacro(Macro_Runner.java:127)
    at ij.plugin.Macro_Runner.runMacroFile(Macro_Runner.java:112)
    at ij.IJ.runMacroFile(IJ.java:103)
    at ij.ImageJ.main(ImageJ.java:517)

I have tried everything to solve this problem like:

export DISPLAY=:10.0
export DISPLAY=localhost:10.0

I tried also the port 0.0 but i get always the same error

after trying xhost

xhost +local:all
xhost:  unable to open display ""
xhost:  unable to open display ":10.0"

how can i fix this i thought that the X Server is not runing so i tried startx its says its runing at that port

my system is Ubuntu server edition 10.04

Answer 1

您需要在启动时指定-Djava.awt.headless=true参数。

Answer 2

Remove the DISPLAY variable

unset DISPLAY

This helps in most cases (eg starting application servers or other java based tools) and avoids to modify all that many command lines.

It can also be comfortable to add it to the .bash_profile for a dedicated app-server/tools user.

Answer 3

这个命令帮我解决了这个问题：

export DISPLAY=:0

Answer 4

我认为您在 sudo 模式下工作。请检查到用户模式并重试

Answer 5

In case anybody trying to run the automated unit tests via maven-surefire-plugin on CI(jenkins,..), and getting the above mentioned error, be sure to update your surefire plugin configuration :

<plugin>
     <groupId>org.apache.maven.plugins</groupId>
     <artifactId>maven-surefire-plugin</artifactId>
     <version>${maven-surefire-plugin.version}</version>
     <configuration>
            <systemPropertyVariables>
                <java.awt.headless>true</java.awt.headless>
            </systemPropertyVariables>
      </configuration>
</plugin>

Answer 6

这将修复它：

/usr/bin/java -Djava.awt.headless=true $Your_program

Answer 7

For me logging in as -Y instead of -X worked.

In case you've got untrusted X11 as shown below, then try -Y flag instead (if you trust the host):

Warning : untrusted X11 forwarding setup failed: xauth key data not generated

Answer 8

If you are trying to export display using su and it still doesn't work. This is what worked for me. Try X11 forwarding for sudo users.

Connect the remote host using the -X option with ssh.

# ssh -X root@remote-host

Now list the coockie set for the current user.

# xauth list $DISPLAY
    node01.thegeekdiary.com/unix:10  MIT-MAGIC-COOKIE-1  dacbc5765ec54a1d7115a172147866aa
# echo $DSIPLAY
    localhost:10.0

Switch to another user account using sudo. Add the cookie from the command output above to the sudo user.

# sudo su - [user]
# xauth add node01.thegeekdiary.com/unix:10  MIT-MAGIC-COOKIE-1  dacbc5765ec54a1d7115a172147866aa

Export the display from step 2 again for the sudo user. Try the command xclock to verify if the x client applications are working as expected.

# export DISPLAY=localhost:10.0

source: https://www.thegeekdiary.com/how-to-set-x11-forwarding-export-remote-display-for-users-who-switch-accounts-using-sudo/

Answer 9

After several days of futile effort of installing glassfish on raspberry pi 2 with headless fedora 22, Below worked for me without a hitch

 unset DISPLAY
java -Djava.awt.headless=true -jar glassfissh-installer-v2ur2-b04-linux.jar

got my help from here

Answer 10

First: start XQuartz

Second: ssh -X user@ip_address

...: start your process

if you ssh and then start XQuartz you will get that error

Answer 11

I was using Xming and got similar error. Following steps were taken to fix the issue:

1. In Xming launch check the box no access control.
2. In putty ran the following command: DISPLAY=XXX.XXX.XXX.XX:0.0; export DISPLAY DISPLAY=XXX.XXX.XXX.XX:0.0; export DISPLAY

Replace XXX.XXX.XXX.XX with your IP address.

Answer 12

First do this either in Build Phase of Jenkins if using or set in /etc/profile:

unset DISPLAY
export DISPLAY=:0

then set this property either in java code or using maven: -Djava.awt.headless=false

Answer 13

Solved. I just logout and login with xorg!

Answer 14

This fixed my problem

xhost +

but Be aware that xhost + completely deactivates authentication and allows everyone to access all application on your screen.

xhost +si:localuser:root seems to work similar with proper authentication.

Answer 15

Michael-O gave useful approach to solve the problem. Another way to solve this is by starting the server with Putty Console.

Answer 16

In my case there was no space left in my machine and I faced the same issue. Some times it could be the space issue. Check the space in your Linux/Unix environment and make sure your machine have enough space.

Answer 17

check whether $DISPLAY variable is set or not, with the below command:

echo $DISPLAY

if the display variable is not set, run the below command to set, (even if it is set, you can have below one for your session)

export DISPLAY=:0.0

in putty also have the x display location as :0.0

Answer 18

I had the same issue on the Linux server I was working on. Connecting java to a X11 display worked on the head node, but not on any other. After contacting the administrator, it turned out that the current version of our job-scheduling system (SLURM) did not support X11 forwarding. They had to update SLURM (newer versions of SLURM support it) for it to work.

Answer 19

the only way i got it to work was running the script with a template. eg sudo ./glassfish-3.1.2.2-unix.sh -s template

This installs Glassfish in Silent Mode.http://docs.oracle.com/cd/E18930_01/html/821-2427/ghmva.html

Answer 20

I run into the same error with you when i run the jconsole command at remote. I want to modify a parameter at jconsole that run on a remote Linux host, i can login the host use the secureCRT, the terminal throw this error information. Fortunately, when use the Putty, it's ok. Weird....

Answer 21

如果您在 Hudson 中看到此错误，请尝试从您的主目录中删除 .java 目录，它可能对您有用。

Answer 22

If you start application on a remote server while logged in by ssh then another way would be to start ssh with -x parameter or add ForwardX11 no in your /etc/ssh/ssh_config . In this case ssh will not create environment variable DISPLAY.

Answer 23

If you're triggering your code from Jenkins, enabling the option "Start Xvfb before the build, and shut it down after" might help. It helped me.

Answer 24

change to a another user and try except root. it works for me.

Answer 25

我只是在运行 ./studio.sh All set 之前没有注销 root。

Answer 26

For Ubuntu 17.10 Install X virtual frame buffer (xvfb)

apt install xvfb

And added these lines to the /etc/profile file...

# Start the X virtual frame buffer (Xvfb)
if [ -f /usr/X11R6/bin/Xvfb ]; then
/usr/X11R6/bin/Xvfb :1 -screen 0 1366x768x32
fi

# Set the DISPLAY variable for the X virtual frame buffer (Xvfb)
export DISPLAY=localhost:1.0

Answer 27

In my case this error was not related to the DISPLAY port. I was trying to load an XML into Windchill (a PLM-software) and received only the above error on the terminal. In a logfile I found the report that my XML-file was corrupt . Maybe someone has a similar problem and can use this answer.

Answer 28

Mine issue was with the firewall. Disabled it temporarily.

[EDIT] And, the server hostname was pointing to another IP. Set it to simply localserver. strace xclock helped to debug this issue.

Answer 29

I have fixed this issue by logging in using Xorg. By default, I have used Wayland. It looks like Wayland eliminates most of the design flaws of the Xorg it has its own issues.

Answer 30

对我来说，以上都没有奏效，但经过长时间的搜索，这对我有用。

export DISPLAY=localhost:20.0

Answer 31

1. export localhost:1

2. -Djava.awt.headless=true

Answer 32

For me, the problem was that xorg-x11-xauth wasn't installed. I installed it and then it worked.

The packages that I have now are:

• libX11-common-1.6.3-2.el6.noarch
• libX11-1.6.3-2.el6.i686
• libX11-1.6.3-2.el6.x86_64
• xorg-x11-drv-ati-firware-7.6.1-2.el6.noarch
• xorg-x11-xauth-1.0.9-1.el6.x86_64