I followed the advice of numerous tutorials to enable the "Console lock display off time-out" setting in advanced power options, and I have changed my currently active plan to time out after 1 minute on the lock screen:
My problem is, it simply doesn't seem to work. I press OK, then press WinKey+L to lock the display, yet the monitor doesn't turn off after one minute. Is there some AD policy that could be overriding this, and if so, how do I check what that policy is set to? Or why else might it not be working? I even tried restarting the machine but to no avail; the problem persists.