Display problem

[LyubomyrD]

Dear jacknlliu

Thank You for opensourcing this great dockerfile.

I was trying to run it and obtained the following error. May I, please ask You to help me resolving this issue?
I followed instructions from dockerhub

1. docker pull jacknlliu/ros:kinetic-ide-init

2. xhost +

3. docker run --privileged
   --security-opt label=disable
   --security-opt seccomp=unconfined
   --env="DISPLAY" --env QT_X11_NO_MITSHM=1
   --volume="/tmp/.X11-unix:/tmp/.X11-unix:rw"
   --volume="/home/1/Workspace:/data:rw"
   --volume="/home/1/Workspace/gazebo_models:/home/ros/.gazebo/models:rw"
   --name="ros_kinetic"
   jacknlliu/ros:kinetic-ide-init terminator

Tips: if you use NVIDIA video cards, you should install NVIDIA video driver for 3D graphics support!
WARNING: Configuration file format is newer than the current version, please specify the current version number (3.5) in the @Version directive. syslog-ng will operate at its highest supported version in this mode;
Sep 4 00:07:36 c913db85046c syslog-ng[50]: syslog-ng starting up; version='3.5.6'
Sep 4 00:07:37 c913db85046c syslog-ng[50]: EOF on control channel, closing connection;
Sep 4 00:07:37 c913db85046c cron[62]: (CRON) INFO (pidfile fd = 3)
Sep 4 00:07:37 c913db85046c cron[62]: (CRON) INFO (Running @reboot jobs)
/usr/lib/python2.7/dist-packages/gtk-2.0/gtk/init.py:57: GtkWarning: could not open display
warnings.warn(str(e), _gtk.Warning)
You need to run terminator in an X environment. Make sure $DISPLAY is properly set
Sep 4 00:07:38 c913db85046c syslog-ng[50]: syslog-ng shutting down; version='3.5.6'
Sep 4 00:07:38 c913db85046c syslog-ng[50]: EOF on control channel, closing connection;

[jacknlliu]

Hi, it seems that DISPLAY is not set by the terminal. Which Linux distribution are you using?

[LyubomyrD]

I am using Ubuntu 16.04 LTS

[jacknlliu]

Do you run this command at your local host PC directly, or using ssh to run these at some remote PC?

[ldemk]

I am running everything from my local PC

[jacknlliu]

Could you show the output of the following commands?

echo $DISPLAY

ls -al /tmp/.X11-unix

xauth info

xauth nlist $DISPLAY

[ldemk]

The result of commands execution are the following

$ echo $DISPLAY
:0

I want to point out about the next command that I changed the name of the month from my language to English - "september"

$ ls -al /tmp/.X11-unix
total 8
drwxrwxrwt  2 root root 4096 september  4 10:04 .
drwxrwxrwt 36 root root 4096 september  4 18:05 ..
srwxrwxrwx  1 root root    0 september  4 09:33 X0

I changed the user name. I hope that this is OK

$ xauth info
Authority file:       /home/my_user_name/.Xauthority
File new:             no
File locked:          no
Number of entries:    2
Changes honored:      yes
Changes made:         no
Current input:        (argv):1

$ xauth nlist $DISPLAY
0100 0006 77756b6f6e67 0001 30 0012 4d49542d4d414749432d434f4f4b49452d31 0010 a4a06217a3c168bda29aef0e5e1ae3ac

[jacknlliu]

I think the issue is about the privilege of /tmp/.X11-unix/X0.

Could you change the privilege of /tmp/.X11-unix/X0 to the current normal user?

sudo chown <your_user_name>:<your_user_name>  /tmp/.X11-unix/X0

[ldemk]

It helped!!!!

Thank You so much for Your time!