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other:x_conf [2022/08/08 13:03] jypeter [Installing x410] |
other:x_conf [2022/08/08 13:56] jypeter [If you are using WSL] Tried to improve... |
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===== Using an X server on Linux ===== | ===== Using an X server on Linux ===== | ||
- | Linux computers come pre-configured with a running X server (because they need it for displaying local graphics) that will display the graphics generated locally and on remote Linux servers. **You don't need to do anything special!** | + | Linux computers come pre-configured with a running //X server// that will display the graphics generated locally and on remote Linux servers |
+ | |||
+ | **You don't need to do anything special!** | ||
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Type: <wrap em>free</wrap> | Type: <wrap em>free</wrap> | ||
- | Download the installer from [[https://sourceforge.net/projects/vcxsrv/|VcXrsv]] and install VcXsrv. | + | Download the installer from [[https://sourceforge.net/projects/vcxsrv/|VcXrsv]] and install ''VcXsrv''. |
=== VcXsrv Configuration === | === VcXsrv Configuration === | ||
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You need to configure ''VcXsrv'' to work in //multiple windows// mode. The following steps will show you how to create a shortcut on your desktop to start VcXsrv in this appropriate mode | You need to configure ''VcXsrv'' to work in //multiple windows// mode. The following steps will show you how to create a shortcut on your desktop to start VcXsrv in this appropriate mode | ||
- | * Start the configuration tool: ''Start'' => ''VcXsrv'' => ''Xlaunch'' | + | * Start the //configuration tool//: ''Start'' => ''VcXsrv'' => ''Xlaunch'' |
* Select ''Multiple windows'', then ''Next'' | * Select ''Multiple windows'', then ''Next'' | ||
* Select ''Start no client'', then ''Next'' | * Select ''Start no client'', then ''Next'' | ||
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* Click on ''Save configuration'' and save an ''X_Server.xlaunch'' configuration file on your Desktop, then ''Terminate''.\\ You should now have a new ''X_Server'' icon/shortcut on your Desktop | * Click on ''Save configuration'' and save an ''X_Server.xlaunch'' configuration file on your Desktop, then ''Terminate''.\\ You should now have a new ''X_Server'' icon/shortcut on your Desktop | ||
* Start the server by double-clicking on the new ''X_Server'' icon | * Start the server by double-clicking on the new ''X_Server'' icon | ||
- | * It will seem that nothing happens, but an ''X'' icon appears in the right side of the taskbar (you may have to look for it in the //Display hidden icons// pull-up menu). Your computer is now ready to display remote graphics!\\ {{ :other:vcxsrv_x.png?direct |}} | + | * It will seem that nothing happens, but an ''X'' icon will appear in the right side of the taskbar (you may have to look for it in the //Display hidden icons// pull-up menu). Your computer is now ready to display remote graphics!\\ {{ :other:vcxsrv_x.png?direct |}} |
* The X server will stop when you close your Windows session or restart the computer. Do not forget to click on the ''X_Server'' icon on your desktop if you know that you will need an X server later | * The X server will stop when you close your Windows session or restart the computer. Do not forget to click on the ''X_Server'' icon on your desktop if you know that you will need an X server later | ||
* FIXME Document how to automatically start the X server... | * FIXME Document how to automatically start the X server... | ||
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* Right-click on ''X140'' and select ''Enabled'' | * Right-click on ''X140'' and select ''Enabled'' | ||
* Note: if you need to quit the //X server//, you can right-click on the ''X'' icon, and then click on the //Display// number at the lower left (usually ''0'') and select ''Shut down'' | * Note: if you need to quit the //X server//, you can right-click on the ''X'' icon, and then click on the //Display// number at the lower left (usually ''0'') and select ''Shut down'' | ||
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- | |||
- | **Starting, configuring and exiting X410**: you can start X410 by clicking on it in the Windows Start Menu, or choose to [[https://token2shell.com/howto/x410/automatically-start-x410-on-login/|Automatically Start X410 on Login]] | ||
- | * Note: nothing actually happens when you start X410, as it is just waiting to display graphics! You will just get a new **X** icon in the //hidden// icons of the taskbar. | ||
- | * You can configure (and exit) X410 by right clicking on its **X** icon | ||
- | |||
===== Using an X server on an Apple computer ===== | ===== Using an X server on an Apple computer ===== | ||
- | ===== Configuration on the remote machine ===== | + | ===== Configuration on the remote Linux server ===== |
- | ==== If you are connecting with ssh ==== | + | ==== If you are connecting with ssh or PuTTY ==== |
- | Nothing special to do! | + | Nothing special to do, if you are using [[other:ssh#using_an_x_server_to_display_graphics|"ssh -X" or "ssh -Y"]] or ''PuTTY'' to connect to a remote Linux server |
==== If you are using WSL ==== | ==== If you are using WSL ==== | ||
- | If you have installed [[other:win10wsl|WSL+Ubuntu]] on your local machine, and you need your X server to display graphics generated in WSL, you need to define the DISPLAY variable: ''export DISPLAY=localhost:0.0'' | + | * Local machine: your local **Windows computer**, where you have installed [[other:win10wsl|WSL+Ubuntu]] |
+ | |||
+ | * **Remote server** : we consider 2 types of remote servers: | ||
+ | * an **actual remote server** | ||
+ | * The **WSL computer** running on a **virtual machine inside your local Windows computer**. This can be considered as a different and //remote// computer, even it is running on the local computer\\ You need your local //X server// to display graphics generated in WSL | ||
+ | * **define the ''DISPLAY'' variable** in the terminals used in WSL: | ||
+ | * //bash// shell: ''export DISPLAY=localhost:0.0'' | ||
+ | * //tcsh// shell: ''setenv DISPLAY localhost:0.0'' | ||
+ | * You probably want to define the ''DISPLAY'' variable automatically in one of the shell configuration files | ||
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* Open a terminal and check that the ''DISPLAY'' environment variable is correctly defined on the local machine | * Open a terminal and check that the ''DISPLAY'' environment variable is correctly defined on the local machine | ||
* Connect to the remote machine | * Connect to the remote machine | ||
- | * Check that a (new) ''DISPLAY'' variable is defined on the remote machine | + | * Check that a (new) ''DISPLAY'' variable is automatically defined on the remote machine |
* Check that you can start an application using graphics (e.g. ''xterm'') on the remote machine | * Check that you can start an application using graphics (e.g. ''xterm'') on the remote machine | ||
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==== On a Windows computer with PuTTY and an X server installed ==== | ==== On a Windows computer with PuTTY and an X server installed ==== | ||
- | We assume here that [[other:putty_conf|PuTTY is already installed and configured]] | + | We assume here that [[other:putty_conf|PuTTY is already installed and configured]] and **correctly** configured (with ''Enable X11 forwarding'') |
- | We just have to open a pre-configured //Session// on a remote server | + | We just have to open a pre-configured //PuTTY Session// on a remote server |
<code>[Remote] $ hostname | <code>[Remote] $ hostname | ||
name_of_the_remote_server | name_of_the_remote_server | ||
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==== OpenGL related settings ==== | ==== OpenGL related settings ==== | ||
- | It's hard to know what the best OpenGL settings for your X server are: it depends on your local computer, the remote computer, the network speed, the application generating the graphics, the libraries' versions... | + | It's hard to know what the best //OpenGL// settings for your //X server// are: it depends on your local computer, the remote computer, the network speed, the application generating the graphics, the libraries' versions... |
- | * If ''Native opengl'' is activated in VcXsrv, you //may// have to also use the following environment variable on the remote computer: ''export LIBGL_ALWAYS_INDIRECT=1'' | + | * If ''Native opengl'' is activated in ''VcXsrv'', you //may// have to also use the following environment variable on the remote computer: ''export LIBGL_ALWAYS_INDIRECT=1'' |
* or maybe not! You can try to understand the [[https://unix.stackexchange.com/questions/1437/what-does-libgl-always-indirect-1-actually-do|What does LIBGL_ALWAYS_INDIRECT=1 actually do?]] thread... | * or maybe not! You can try to understand the [[https://unix.stackexchange.com/questions/1437/what-does-libgl-always-indirect-1-actually-do|What does LIBGL_ALWAYS_INDIRECT=1 actually do?]] thread... | ||