Looks like the Deepin update broke itself.
sleep 1 && xset dpms force off
That works, so it’s a Deepin issue.
And it works now, changed it to 1 minute instead of 5 minutes. Also running xset might of fixed it. Now that in knows it can suspend the monitor.
I don’t use the Deepin distro, just the desktop environment, in Manjaro.
I was playing Fallout 76 in my Windows VM, and the it didn’t lock the screen in Linux, no suspend again. Only one monitor, but more then one input. The monitor should of been off when I switched. But the VM can also kill suspend from working.