Black screen after CentOS7 combination on laptop but not sleep mode

CentOS7 black screen after combination, but do not enter sleep mode modify systemd can handle some power-related ACPI events, you can through/etc/system/logind. configure the following options in conf: HandlePowerKey: HandleSleepKey: Hang: CentOS 7, black screen, but not sleep mode. modify systemd to handle power-related ACPI events, you can use/etc/system/logind. conf:

HandlePowerKey action after pressing the power key
HandleSleepKey: the behavior of pressing the hold key
HandleHibernateKey action after pressing the sleep key
HandleLidSwitch

The behavior can be ignore, poweroff, reboot, halt, suspend, hibernate, hybrid-sleep, lock, or kexec.

The default settings are as follows:

HandlePowerKey = poweroff
HandleSuspendKey = suspend
HandleHibernateKey = hibernate
HandleLidSwitch = suspend

You only need to set the HandleLidSwitch option to the following:

HandleLidSwitch = lock

Note: After the settings are saved, run the systemctl restart systemd-logind command.