Differences

This shows you the differences between two versions of the page.

--- other:x_conf [2022/08/12 14:40] – [Installing XQuartz] Added some tech ref jypeter
+++ other:x_conf [2024/07/10 10:54] (current) – [Using X forwarding in a Windows Powershell] jypeter
@@ Line 42: / Line 42: @@
 ===== Using an X server on Windows =====
-There are several available options
+There are several available X servers, and applications that will allow //X forwarding// from a remote server to your local X server
+==== Using X forwarding in a Windows Powershell ====
+**You have to type ''$env:DISPLAY = "localhost:0"'' before connecting** using ''ssh -Y remote server'' (''-X'' will not work), in order to have the ''DISPLAY'' variable correctly defined on the remote server
+<code>PS C:\> ssh -X obelix
+[...]
+ >echo $DISPLAY
+DISPLAY: Undefined variable.
+ >logout
+Connection to obelix closed.
+PS C:\> $env:DISPLAY
+PS C:\> $env:DISPLAY = "localhost:0"
+PS C:\> $env:DISPLAY
+localhost:0
+PS C:\> ssh -X obelix
+[...]
+Warning: untrusted X11 forwarding setup failed: xauth key data not generated
+[...]
+ >echo $DISPLAY
+DISPLAY: Undefined variable.
+PS C:\> ssh -Y obelix
+[...]
+Warning: No xauth data; using fake authentication data for X11 forwarding.
+[...]
+ >echo $DISPLAY
+localhost:42.0
+ >xterm&
+[1] 30038
+</code>
 ==== Installing VcXsrv ====
@@ Line 250: / Line 283: @@
   * Have you [[other:x_conf|installed and configured the X server]] correctly? Is it really running?
   * Have you configured [[other:putty_conf|PuTTY]] and/or other required applications correctly ?
+  * Are you [[other:x_conf#using_x_forwarding_in_a_windows_powershell|using Windows Powershell correctly]]?
   * Is the [[other:x_conf#what_is_an_x_server|DISPLAY variable]] defined correctly on the local and remote computer?
@@ Line 255: / Line 289: @@
 ==== Error when there is no X server running ====
-If the ''DISPLAY'' variable is defined, but there is **no X server**, you will get a ''Can't open display: localhost://[SOME VALUE]//'' error\\ <code>$ xterm &
+If the ''DISPLAY'' variable is defined, but there is **no X server**, you will get a ''Can't open display: localhost://[SOME VALUE]//'' error
+<code>$ xterm &
 xterm: Xt error: Can't open display: localhost:23.0</code>
 Time to [[other:x_conf|read this page again]]...
+==== Error when there is no space left in your home directory ====
+If there is no space left in your home directory (usually the home directory of the remote server), or if you have exceeded your [[other:newppl:starting#which_disks_should_you_use|home disk quota]], you will get an error similar to [[#error_when_there_is_no_x_server_running|Error when there is no X server running]]
+<code>$ xterm &
+xterm: Xt error: Can't open display: localhost:23.0</code>
+**Solution**: clean the content of your //home//!
 ==== Error when DISPLAY is not defined correctly ====
@@ Line 275: / Line 318: @@
 </code>
-Make sure that you are using ''ssh -X'' or ''ssh -Y'', or that [[other:putty_conf#changing_some_useful_settings|PuTTY is configured]] with ''Enable X11 forwarding''
+  * Make sure that you are using ''ssh -X'' or ''ssh -Y'', or that [[other:putty_conf#changing_some_useful_settings|PuTTY is configured]] with ''Enable X11 forwarding''
+  * If you use ''ssh'' in a **Windows Powershell**, read [[other:x_conf#using_x_forwarding_in_a_windows_powershell|Using X forwarding in a Windows Powershell]]
 ==== Can't start a graphical application by clicking on its desktop shortcut ====