一、Wifi无法连接
ip addr
显示：unmanaged， plugin missing
先连有线网
yum install -y NetworkManager-wifi
systemctl restart NetworkManager.service
二、笔记本合上后休眠
yum install -y polkit
vi /etc/system/logind.conf
HandleLidSwitch=ignore
systemctl restart systemd-logind
原文：https://www.cnblogs.com/pojishou/p/11297034.html