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other:x_conf [2022/08/10 06:58] jypeter [Nothing works!] Increased the level of the sub-sections |
other:x_conf [2022/08/11 07:47] jypeter [What do we mean exactly with Local and Remote computers?] Examples of Linux servers |
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* The **remote computer or server** is another computer that you also want to interact with (using the screen+mouse+keyboard of your local computer) | * The **remote computer or server** is another computer that you also want to interact with (using the screen+mouse+keyboard of your local computer) | ||
+ | * [[other:ssh#connecting_to_servers_commonly_used_by_lsce_users|Some servers used by LSCE users]] | ||
* We only consider on this page the case of a **remote //Linux// machine** that **requires a local running //X server//** | * We only consider on this page the case of a **remote //Linux// machine** that **requires a local running //X server//** | ||
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[Remote] $ xterm &</code> | [Remote] $ xterm &</code> | ||
+ | |||
==== On a Mac ==== | ==== On a Mac ==== | ||
FIXME | FIXME | ||
- | ===== Troubleshooting ===== | ||
- | ==== Can't start a graphical application by clicking on its desktop shortcut ==== | ||
- | Check the shortcut and run the command directly in a terminal to check the error message | + | ===== Troubleshooting ===== |
- | There is a good chance that you have forgotten to start the X server! | ||
==== Nothing works! ==== | ==== Nothing works! ==== | ||
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* Have you configured [[other:putty_conf|PuTTY]] and/or other required applications correctly ? | * Have you configured [[other:putty_conf|PuTTY]] and/or other required applications correctly ? | ||
* Is the [[other:x_conf#what_is_an_x_server|DISPLAY variable]] defined correctly on the local and remote computer? | * Is the [[other:x_conf#what_is_an_x_server|DISPLAY variable]] defined correctly on the local and remote computer? | ||
+ | |||
+ | |||
+ | ==== 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 & | ||
+ | xterm: Xt error: Can't open display: localhost:23.0</code> | ||
+ | |||
+ | Time to [[other:x_conf|read this page again]]... | ||
+ | |||
==== Error when DISPLAY is not defined correctly ==== | ==== Error when DISPLAY is not defined correctly ==== | ||
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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'' | ||
- | ==== 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 & | + | ==== Can't start a graphical application by clicking on its desktop shortcut ==== |
- | xterm: Xt error: Can't open display: localhost:23.0</code> | + | |
+ | Check the shortcut and run the command directly in a terminal to check the error message | ||
+ | |||
+ | There is a good chance that [[other:x_conf#error_when_there_is_no_x_server_running|you have forgotten to start the X server!]] | ||
- | Time to [[other:x_conf|read this page again]]... | ||
==== OpenGL related settings ==== | ==== OpenGL related settings ==== | ||