Take the 2-minute tour ×
Super User is a question and answer site for computer enthusiasts and power users. It's 100% free, no registration required.

I have googled this a bit and looked at powrprof.dll and PsShutdown but I haven't found a way to do exactly what I want to do.

You know that power save option that lets Windows turn off your monitor(s) if you haven't touched the system for x amount of time?

Well, I have a PC that needs to be on most of the day (and night), and I have to watch it much of the time, so I can't have a short timeout for automatically turning off the monitor. However, once I leave it for a few hours (happens at varying times of the day), I would like to be able to issue a command that puts the computer in this mode. Not sleep mode, not hibernate mode. Monitor off, that is all.

I realize of course I could just turn the physical monitor off. That is not what I want. This Dell monitor takes forever to display a picture from a cold state. If it is turned off by the computer not sending a signal - not so bad.

Is there any way for me to do this? As mentioned, the OS can do it, so I would find it really useful if I could do it too. :)

share|improve this question

3 Answers 3

up vote 3 down vote accepted

wizmo monoff or nircmd monitor off should help.

share|improve this answer
While this link may answer the question, it is better to include the essential parts of the answer here and provide the link for reference. Link-only answers can become invalid if the linked page changes. –  MaQleod Oct 3 '12 at 23:26
While I agree with MaQleod that it would be great for the information to be inline, I went with nircmd (actually, nircmdc) as it had a 64 bit version, and provided a no-hassle command line. Awesome, thanks! –  Rune Jacobsen Oct 4 '12 at 4:52
@MaQleod: The links are to the download pages only. The answer is simply the two commands I mentioned above, for which the two programs are required obviously. There is no great step-by-step process to be followed to solve this issue, else I would have mentioned it here as I do on my other answers. The other commands listed on the download pages have no bearing on this question and so need not be copy-pasted here. –  Karan Oct 4 '12 at 16:59

Open "Power Options" and on the left-hand side you will see "Choose when to turn off the display." You can select a time for turning off the display between 1 minute and 5 hours.

share|improve this answer
Hi, thanks for replying, but I am already aware of these and using them, but in this case I specifically needed to turn the monitor off exactly when I want to, not after a specific idle time. –  Rune Jacobsen Oct 4 '12 at 4:53

If you want to be able to put the monitor(s) in power saving mode on demand, the easiest tool I've found for this is Dekisoft's Monitor Off Utility. I haven't tried it on Windows 8, personally, but I see no reason it shouldn't work just fine. It will even let you set up a hotkey to do it on demand without messing with the GUI.

share|improve this answer

Your Answer


By posting your answer, you agree to the privacy policy and terms of service.

Not the answer you're looking for? Browse other questions tagged or ask your own question.