如何告诉 Ubuntu 仅在合上笔记本电脑盖子时关闭屏幕？

Question

This is closely related to this question: How can I tell Ubuntu to do nothing when I close my laptop lid?.

I would like to stop Ubuntu from suspending or sleeping when the laptop lid is closed, while still turning the screen off to save power. How can I do that?

This is for a Dell Precision 5550 running Ubuntu 20.04 preinstalled.

Answer 1

我认为的答案就在这里：配置linux笔记本电脑以关闭屏幕，但在盖子关闭时仍保持运行

步骤是

sudo gedit /etc/systemd/logind.conf

改成#HandleLidSwitch=suspend​HandleLidSwitch=lock

然后

sudo systemctl restart systemd-logind.service

Answer 2

简单的GUI方法

只需安装GNOME Tweaks，它就可以在 Ubuntu 上正常运行

打开终端并安装 gnome-tweaks 并打开它。

sudo apt update
sudo apt install gnome-tweaks
gnome-tweaks

之后，您可以看到一个选项，即关闭笔记本电脑盖时暂停。您只需禁用该选项，如下图所示。