Surface Pro 4 - Screen won't wake from sleep

Thanks for the tip. I made the same settings but where do you set hibernate to 45 minutes ? I see screen and sleep settings only and I set those as you mentioned.

There may be an easier way, but this is one.

Go to Start (windows icon in left bottom corner)>Settings>System>Power&sleep on left>Additional power settings>Change plan settings>Change Advanced settings

There a box pops up and you can micro adjust all sorts of power settings.  HIBERNATE comes up if you check the + box for Sleep.  I think this box rules, as it doesn't always seem to correlate with the settings shown on other pages.

Thanks for the tip. I made the same settings but where do you set hibernate to 45 minutes ? I see screen and sleep settings only and I set those as you mentioned.

I agree that our "fixes" are annoying and should not be required.  That said, for those of us keeping it, it is useful to share observations.  And there is the naive hope that Microsoft actually sees some of this. 

In tablet mode, I set display off at 5 minutes, and sleep at 30.  If I want to put it to sleep sooner, I do it via the start button>power in lower left, but I also set hibernate at 45 minutes.  I have not yet experienced any problems this way.  It seems (is this really true?) that if sleep is not on for a prolonged time, some even said up to an hour, that it will wake up.  My power setting means sleep no longer than 30 minutes.  Seems to be working. 

I do it similarly plugged, but maybe a longer time for display, but still hibernate by 45 mins.  Sometimes I use Win-L to lock the computer if I leave, and I assume it just cuts display off, then goes to sleep per my settings, including the hibernate at 45 mins.

Dear all,

I just want to comment my situation with a hope that as the thread gets longer, Microsoft takes this issue more seriously.  Plus, I am using mine more like a tablet, so, I don't always have an access to an external keyboard to perform the handy key combinations.

I have the similar situations that has been happening once or twice a week since I got the unit (i5, 128) about 6 weeks ago.  When I tried to wake it up, screen turns on, but kept being blank. (Please note that I do not have the keyboard cover, so, the issue can happen without it.)  As others indicated, there was a very similar issue with my older Surface Pro (original) too...  I was hoping that by the fourth generation, Microsoft has figured out the most of the major issues, but I guess I was too naive. 

Another related issue is that when the Surface Pro 4 is updating, it just does what it needs without even telling us.  In the past 6 weeks, I noticed at least 4-5 times that the tablet rebooted by itself while I was not using it.  Also as others mentioned, when it is applying some of updates, you will face the same "unable to wake up" issue. I guess it can be fixed under Windows update settings, by setting not install without permission (and I thought I set that...), but nonetheless, it is very annoying.

With these issues and a very poor battery performance, I am very disappointed with SP4, especially for what we paid. At this point, I am ready to sell it at eBay or somewhere. 

BTW, If you happened to purchase SP4 in the past month or so from Best Buy, they accept return from purchases made from November 1st to the end of year until Jan 15th or so.  Lucky you.