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# Ubuntu 20.04 lightdm 关闭休眠
- URL: https://note.xdq.me/ubuntu-20-04-lightdm-guan-bi-xiu-mian/
- Published: 2022-07-25T00:59:20.000Z
- Updated: 2026-10-03T02:52:04.000Z
- Author: xud6
- Tags: linux, ubuntu, #Import 2026-10-03 02:45

禁用systemd休眠状态

```
sudo systemctl mask sleep.target suspend.target hibernate.target hybrid-sleep.target

```

修改`lightdm`的`Time before suspend`

```
sudo -u lightdm dbus-launch gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-ac-timeout 0
sudo -u lightdm dbus-launch gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-battery-timeout 0

sudo -u lightdm dbus-launch gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-ac-type 'nothing'
sudo -u lightdm dbus-launch gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-battery-type 'nothing'

```

修改`unity-greeter`的`Time before suspend`

```
sudo -u lightdm dbus-launch gsettings set com.canonical.unity.settings-daemon.plugins.power sleep-inactive-ac-timeout 0
sudo -u lightdm dbus-launch gsettings set com.canonical.unity.settings-daemon.plugins.power sleep-inactive-battery-timeout 0

sudo -u lightdm dbus-launch gsettings set com.canonical.unity.settings-daemon.plugins.power sleep-inactive-ac-type 'nothing'
sudo -u lightdm dbus-launch gsettings set com.canonical.unity.settings-daemon.plugins.power sleep-inactive-battery-type 'nothing'

```