other:x_conf
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other:x_conf [2022/08/08 14:44] jypeter [If you are using WSL] |
other:x_conf [2022/08/09 12:46] jypeter [Installing x410] |
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| ===== What is an X server? ===== | ===== What is an X server? ===== | ||
| - | An //X server// is not a server for distributing your perfect models output! | + | * An //X server// **is not** a server for distributing your perfect models output! |
| - | An //X server// is basically a program running on your local computer that understands the [[https://en.wikipedia.org/wiki/X_Window_System_core_protocol|X Windows System protocol]] used by **remote Linux servers** to generate graphics, and that can //render// (i.e. display) the graphics generated remotely on your **local computer**. | + | * An //X server// **is** basically a program running on your **local** computer that understands the [[https://en.wikipedia.org/wiki/X_Window_System_core_protocol|X Windows System protocol]] used by **Linux computers** (**local** computer, or **remote** Linux servers) to generate graphics, and that can //render// (i.e. display) the graphics generated **remotely** on your **local** computer |
| + | |||
| + | ===== What do we mean exactly with Local and Remote computers? ===== | ||
| + | |||
| + | This page will very often mention **local computers**, and **remote computers**: | ||
| + | |||
| + | * The **local computer** is the desktop or laptop you are interacting with (using a screen+mouse+keyboard) | ||
| + | * The local computer can be a **Linux, Windows or Mac (i.e //OS X//) 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) | ||
| + | * We only consider on this page the case of a **remote //Linux// machine** that **requires a local running //X server//** | ||
| + | |||
| + | * **Remote Linux machine** can mean several things: | ||
| + | * It can be another operating system running inside **a [[https://en.wikipedia.org/wiki/Virtual_machine|Virtual Machine]] on your local computer** | ||
| + | * We mostly consider on this page the case of a **Linux virtual machine** using [[other:win10wsl|Windows Subsystem for Linux (WSL)]] on a **local Windows computer**, but this can apply to other configurations | ||
| + | * It can be a **distant Linux computer or server** in your building, or a high performance Linux computer in a computing center on the other side of the Earth. It could also be a Linux virtual machine in the //Cloud// | ||
| ===== Using an X server on Linux ===== | ===== Using an X server on Linux ===== | ||
| - | Linux computers come pre-configured with a running //X server// that will display the graphics generated locally and on remote Linux servers | + | <WRAP center round tip 60%> |
| + | You don't need to do anything special! | ||
| + | </WRAP> | ||
| - | **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 |
| ===== Using an X server on Windows ===== | ===== Using an X server on Windows ===== | ||
| - | There are several options available | + | There are several available options |
| ==== Installing VcXsrv ==== | ==== Installing VcXsrv ==== | ||
| Line 32: | Line 49: | ||
| === VcXsrv Configuration === | === VcXsrv Configuration === | ||
| - | 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'' | ||
| Line 54: | Line 71: | ||
| This is an //X server//, and you will get the same functionalities as what is already provided for free by [[other:x_conf#installing_vcxsrv|VcXsrv]], **but**: | This is an //X server//, and you will get the same functionalities as what is already provided for free by [[other:x_conf#installing_vcxsrv|VcXsrv]], **but**: | ||
| * Once installed, ''x410'' will be automatically updated by the Microsoft Store application | * Once installed, ''x410'' will be automatically updated by the Microsoft Store application | ||
| - | * If you move to another computer, you can install ''x410'' again by just [[other:win10config#connecting_to_the_microsoft_store|Connecting the MS Store to your account]] on the new computer. No need to buy it again | + | * If you move to another computer, you can install ''x410'' again by just [[other:win10config#connecting_to_the_microsoft_store|Connecting the Microsoft Store to your MS account]] on the new computer. No need to buy ''x410'' again ! |
| - | * There seem to be more (useful) updates than for ''VcXsrv'' | + | * There seems to be more (useful) updates than for ''VcXsrv'' |
| * The interface is more modern, with more options, and there is a lot of useful information on the web site | * The interface is more modern, with more options, and there is a lot of useful information on the web site | ||
| * The ''x410'' name is easier to remember! :-D | * The ''x410'' name is easier to remember! :-D | ||
| Line 68: | Line 85: | ||
| * Start ''x410'': ''Start'' => ''X410'' | * Start ''x410'': ''Start'' => ''X410'' | ||
| - | * 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 __almost__ ready to display remote graphics!\\ {{ :other:x410_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 //almost// ready to display remote graphics!\\ {{ :other:x410_x.png?direct |}} |
| * Right-click on the ''X'' icon to open the **X410 settings** | * Right-click on the ''X'' icon to open the **X410 settings** | ||
| - | * Select ''Auto copy to Windows after selection''\\ {{ :other:x410_settings.png?direct |}} | + | * Select ''Auto copy to Windows after selection''\\ {{ :other:x410_settings.png?direct |}} and click somewhere else on the desktop to close the settings |
| - | * It's possible to **automatically start ''x410''**! Otherwise, it will stop when you close your Windows session or restart the computer, and you will have to restart it by hand (''Start'' => ''X410'') if you know that you will need an X server later | + | * It is possible to **automatically start ''x410''** when you open your session! Otherwise, it will stop when you close your Windows session or restart the computer, and you will have to restart it by hand (''Start'' => ''X410'') if you know that you will need an X server later |
| * Open the **Windows Task Manager** (Right-click on ''Start'' and select ''Task Manager'') | * Open the **Windows Task Manager** (Right-click on ''Start'' and select ''Task Manager'') | ||
| * Go to the ''Startup'' panel (if there are no panels, select ''More details'') | * Go to the ''Startup'' panel (if there are no panels, select ''More details'') | ||
| Line 77: | Line 94: | ||
| * 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'' | ||
| - | ===== Using an X server on an Apple computer ===== | + | ===== Using an X server on a Mac ===== |
| Line 171: | Line 188: | ||
| ==== On a Windows computer with WSL+Linux and an X server installed ==== | ==== On a Windows computer with WSL+Linux and an X server installed ==== | ||
| + | We assume that [[other:win10wsl|WSL+Ubuntu]] is installed and that the ''DISPLAY'' variable is [[other:x_conf#if_you_are_using_wsl|configured correctly]] | ||
| - | * FIXME ''export DISPLAY=localhost:0.0'' | + | Open a WSL terminal (you should know how, if you have installed WSL) and type some basic commands |
| + | <code>[Local WSL] $ hostname | ||
| + | name_of_your_local_machine | ||
| + | [Local WSL] $ echo $DISPLAY | ||
| + | localhost:0.0 | ||
| + | [Local WSL] $ xterm | ||
| + | [Local WSL] $ ssh -X some_login@some_remote_server | ||
| + | [some connection information skipped here] | ||
| + | |||
| + | [Remote] $ echo $DISPLAY | ||
| + | localhost:22.0 | ||
| + | [Remote] $ xterm</code> | ||
| ===== Troubleshooting ===== | ===== Troubleshooting ===== | ||
| Line 186: | Line 215: | ||
| * 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 ''DISPLAY'' variable defined correctly on the local and remote computer? | * Is the ''DISPLAY'' variable defined correctly on the local and remote computer? | ||
| + | |||
| + | === When DISPLAY is not defined correctly === | ||
| + | |||
| + | If the ''DISPLAY'' **variable is not defined (correctly)**, you will get a ''Can't open display: //[NO VALUE DISPLAYED HERE]//'' error | ||
| + | |||
| + | <code>$ xterm & | ||
| + | $ xterm: Xt error: Can't open display: | ||
| + | xterm: DISPLAY is not set | ||
| + | $ echo $DISPLAY | ||
| + | |||
| + | </code> | ||
| + | |||
| + | Make sure that you are using ''ssh -X'' or ''ssh -Y'', or that [[other:putty_conf#changing_some_useful_settings|PuTTY is configured]] with ''Enable X11 forwarding'' | ||
| + | |||
| + | === When there is no X server running === | ||
| + | |||
| + | If the ''DISPLAY'' variable is defined, but there is **no X server**, you will get a ''Can't open display: localhost://[SOME VALUE]//'' error\\ <code>$ xterm & | ||
| + | $ connect localhost port 6000: Connection refused | ||
| + | xterm: Xt error: Can't open display: localhost:12.0</code> | ||
| + | |||
| + | Time to [[other:x_conf|read this page again]]... | ||
| ==== OpenGL related settings ==== | ==== OpenGL related settings ==== | ||
other/x_conf.txt · Last modified: 2023/06/30 08:20 by jypeter
