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[手动选题][tech]: 20221025.3 ⭐️ How to Change Login Screen Background in Ubuntu.md
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[#]: subject: "How to Change Login Screen Background in Ubuntu"
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[#]: via: "https://www.debugpoint.com/change-login-background-ubuntu/"
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[#]: author: "Arindam https://www.debugpoint.com/author/admin1/"
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[#]: collector: "lkxed"
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[#]: translator: " "
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[#]: reviewer: " "
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[#]: publisher: " "
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[#]: url: " "
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How to Change Login Screen Background in Ubuntu
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======
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**This is how you can get rid of that boring login screen background in Ubuntu and set a nice picture to welcome you each time you log on.**
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I, always think that when you boot up your system, a nice login screen should greet you. That itself set the context of your upcoming work or activity that you are about to do. Although, I am not a Windows fan, but I admire how Windows 10 login background changes every day from Bing wallpapers, and it looks nice. Isn’t it?
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A while back, we covered how to [change login background in Fedora][1] and [elementary OS][2]. And now this guide explains how you change it in vanilla Ubuntu with GNOME Shell.
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Login screen background is part of display manager property. This guide uses a script in GitHub created by a user to make it seamless and easy for average user. Otherwise, you have to change the Gnome Display Manager (gdm) CSS files manually after extracting the `.gresource` file, then compile it – which is complicated in general.
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![Ubuntu Login screen - before change][3]
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Ubuntu Login screen – before change
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### Change Login Background in Ubuntu
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- Open a terminal (press CTRL+ALT+T)
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- Download the [GitHub repo][4] using the below command.
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```
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wget github.com/thiggy01/change-gdm-background/raw/master/change-gdm-background
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```
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**Note**: If you do not have wget, install it using `sudo apt install wget`
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**Ubuntu 22.04 Jammy Jellyfish** users require an additional code change to make it work because the developer did not fix it in GitHub. So here’s what you need to do.
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Open the `change-gdm-background` file via gedit. Then, go to the following line (#15) and add `|jammy`.
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![script change to allow jammy][5]
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script change to allow jammy
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Then, go to the following two lines (#144 and #184). Change `gdm3.css` to `gdm.css`. As shown below.
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![correct the css file for gdm][6]
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correct the css file for gdm
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And finally, save the file and follow the instructions as below. This workaround is only for Ubuntu 22.04 login screen change.
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- Change the permission of the script to make it executable
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```
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chmod +x change-gdm-background
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```
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- Then change the login background wallpaper in Ubuntu using the below command. Change the path of your image.
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```
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sudo ./change-gdm-background ~/Pictures/tree.jpg
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```
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This step might require `libglib2.0-dev` package, which will be installed automatically. This is required to extract/compile the `.gresource`.
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And after installation, it would prompt you to restart gdm. Press N, to be on the safe side.
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- Log out and you can see the changed background in Ubuntu.
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- If you are not seeing the change, try restarting your system and then try to log in.
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![Ubuntu Login screen After Change][7]
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Ubuntu Login screen with background After Change
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### Restore the stock login screen
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The script also provides a feature to revert the stock login screen. It takes a backup of your `.gresource` file before changing it. So, from the terminal, simply run below to restore the original login screen.
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```
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sudo ./change-gdm-background --restore
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```
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That should change the login screen back to its original form.
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Let me know whether it worked for you using the comment box below. This should work for all the latest versions of Ubuntu Linux.
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--------------------------------------------------------------------------------
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via: https://www.debugpoint.com/change-login-background-ubuntu/
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作者：[Arindam][a]
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选题：[lkxed][b]
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译者：[译者ID](https://github.com/译者ID)
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校对：[校对者ID](https://github.com/校对者ID)
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本文由 [LCTT](https://github.com/LCTT/TranslateProject) 原创编译，[Linux中国](https://linux.cn/) 荣誉推出
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[a]: https://www.debugpoint.com/author/admin1/
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[b]: https://github.com/lkxed
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[1]: https://www.debugpoint.com/2021/09/change-login-background-fedora/
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[2]: https://www.debugpoint.com/2021/07/change-lock-login-screen-background-elementary-os/
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[3]: https://www.debugpoint.com/wp-content/uploads/2021/09/Ubuntu-Login-screen-before-change-1024x539.jpg
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[4]: https://github.com/thiggy01/change-gdm-background
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[5]: https://www.debugpoint.com/wp-content/uploads/2022/09/script-change-to-allow-jammy.jpg
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[6]: https://www.debugpoint.com/wp-content/uploads/2022/09/correct-the-css-file-for-gdm.jpg
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[7]: https://www.debugpoint.com/wp-content/uploads/2021/09/Ubuntu-Login-screen-After-Change-1024x538.jpg
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