解决Linux lightdm服务无法启动问题

博主在玩archlinux的时候选择了用lightdm做我的登录窗口管理器

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pacman -S lightdm-webkit2-greeter

systemctl enable lightdm.service

安装并开启自启，但是重启启动机子直接卡住，连login界面都没有。于是选择用笔记本ssh上看看，发现可以成功连接上去，于是自然想到是lightdm服务出问题了。

于是查看它的状态:

1	systemctl status lightdm.service

果然寄了。报错如下：

lightdm.service - Light Display Manager
Loaded: loaded (/usr/lib/systemd/system/lightdm.service; enabled; preset: disabled)
Active: failed (Result: exit-code) since Fri 2023-04-28 16:58:15 CST; 17min ago
Docs: man:lightdm(1)
Process: 787 ExecStart=/usr/bin/lightdm (code=exited, status=1/FAILURE)
Main PID: 787 (code=exited, status=1/FAILURE)
CPU: 7ms

4月 28 16:58:15 ArchLinux systemd[1]: lightdm.service: Scheduled restart job, restart counter is at 5.
4月 28 16:58:15 ArchLinux systemd[1]: Stopped Light Display Manager.
4月 28 16:58:15 ArchLinux systemd[1]: lightdm.service: Start request repeated too quickly.
4月 28 16:58:15 ArchLinux systemd[1]: lightdm.service: Failed with result 'exit-code'.
4月 28 16:58:15 ArchLinux systemd[1]: Failed to start Light Display Manager.