X application (GUI) doesn't work

In this page, X applicatoin indicates the application that is installed in TSUBAME3 and can work on the X environment, that is GUI application.

Please check the troubleshooting below.

1. X server application is installed and active on the client PC

■Windows
There are a lot of X server applications for Windows.
Please confirm that one of them is installed and on active.

■Mac
Please confirm XQuartz is installed and configured.
https://support.apple.com/ja-jp/HT201341

■Linux
Please confirm both of the X11 server application and its libraries are installed.


2. The X transfer option in the terminal is enabled.
■ A Terminal on Windows (Except for Cygwin)
The setting method differs depending on your terminal and X server application.
Please check the manual of each application.

■Linux/Mac/Windows(Cygwin)
Please confirm the ssh command contains the option -y and -c (these are the options for X transfer)

$ ssh account_name@login.t3.gsic.titech.ac.jp -i key -YC

Example: in case of gsic_user as account_name and ~/.ssh/t3-key as key, then

$ ssh gsic_user@login.t3.gsic.titech.ac.jp -i ~/.ssh/t3-key -YC

Please refer to the output of the following command for ssh option.

$ man ssh 


3. Error reproduces in another terminal/Xserver
There are various free terminal softwares/X server applications for Windows.
Please check the same error occurs another terminal/X server.
It may be due to compatibility between terminal and X server.
It may be compatible with isv application.
If it does not reproduce in other applications, there is a possibility that it is an application specific problem.
In that case we can not respond even if you contact us, please understand.

In addition, depending on the X application, command options may be required.
Please check the manual of X application you want to use.

 

Some GL applications that do not work with normal X forwarding/VNC connection may work with VirtualGL, so please give it a try if needed.

For the detail of VirtualGL, please refer to User's Guide.

 

4. Operation check
If it is in an interactive node, the standard terminal emulator of X Window System is started with the following command. Please confirm whether to start.

$ xterm 

If xterm works but the X application you want to use does not work, please try "3. Error reproduces in another terminal/Xserver"

Example of failure

xterm: Xt error: Can't open display: 
xterm: DISPLAY is not set

Please check 1 and 2 if the error occurs.

5. Application use
Do not execute programs that occupy the CPU at login nodes.
Please use compute nodes for Full-scale use including visualization.

Please refer to the FAQ below for information on using the GUI application at the compute node.
Reference: FAQ "How to transfer X with qrsh"

When using f_node, X transfer can be performed with the ssh -Y command.

Please inform us of the following when you inquire
■Operating System you use (例 Windows10,Debian10,macOS Sierra10.12.6)

■Terminal environment that the error occurs (Cygwin, PuTTY/VcXsrv, Rlogin/Xming)

■Version
For Windows, the both versions of the terminal and X server application.
see the manuals for applications for checking versions.
Please inform the version of SSH in case of using Linux/Mac with the command below.

$ ssh -V

■Please send us the contents you tried so far, or if you get an error, please describe the error.