Surface Pro 4 - Screen won't wake from sleep

Update: According to POWERCFG /SLEEPSTUDY, the system dozes to hibernation because "the user was predicted to be away" after only 30 minutes. Does this mean that you can't leave your PC on a table for more than 1/2 hour before it hibernates? That's absurd! In what way is this "Modern Standby", which is the fancy new word for the fancy new feature that probably is what makes waking from sleep such a gamble?

Replying to myself here. With any new Surface "firmware" update, the power settings are restored to these absurd defaults, where sleep only lasts about 30 minutes. I give up. In what bizarre universe are we living, where we have a "connected standby" (or "modern standby") mode that allows our 2-in-1s to operate almost as "real" tablets in standby mode, but only for 30 minutes before the 90's calls and wants it cold restart back? Why am I not allowed to decide for myself whether this is a good compromise or not?

I should add that the new setting in Power Options that controls whether the PC should try to save power when it "predicts" that I'm away is set to Off. And, as a final bonus, that Creator's Update broke POWERCFG /SLEEPSTUDY, so that report now is identical to /SYSTEMPOWERREPORT (even says so in the title), which leaves out many details about sleep that were helpful for figuring out what is wrong with the Surface's standby.

Great work, Microsoft.

Update: According to POWERCFG /SLEEPSTUDY, the system dozes to hibernation because "the user was predicted to be away" after only 30 minutes. Does this mean that you can't leave your PC on a table for more than 1/2 hour before it hibernates? That's absurd! In what way is this "Modern Standby", which is the fancy new word for the fancy new feature that probably is what makes waking from sleep such a gamble?

Replying to myself here. With any new Surface "firmware" update, the power settings are restored to these absurd defaults, where sleep only lasts about 30 minutes. I give up. In what bizarre universe are we living, where we have a "connected standby" (or "modern standby") mode that allows our 2-in-1s to operate almost as "real" tablets in standby mode, but only for 30 minutes before the 90's calls and wants it cold restart back? Why am I not allowed to decide for myself whether this is a good compromise or not?

I should add that the new setting in Power Options that controls whether the PC should try to save power when it "predicts" that I'm away is set to Off. And, as a final bonus, that Creator's Update broke POWERCFG /SLEEPSTUDY, so that report now is identical to /SYSTEMPOWERREPORT (even says so in the title), which leaves out many details about sleep that were helpful for figuring out what is wrong with the Surface's standby.

Great work, Microsoft.

I guess I've missed something, but I'm not following how your Surface has only 30 minutes of sleep before it hibernates. Mine can do at least 300 minutes. Probably up to 999 minutes, though I've never tested it. Are you looking at the Advanced Settings?

Sure, here are my Advanced settings (in Swedish, but it shows the hibernation settings when running on battery):

I used to get around 12 hours of (connected/modern) sleep before it hibernated until some firmware update a while back introduced "user presence prediction". Since the Creator's Update there is a switch for it in Settings, but I can't say it has any effect. Here is an example from POWERCFG /SYSTEMSLEEPDIAGNOSTICS, where you can se the Surface sleeping for only 30 minutes before hibernating for 6hrs:

The report is a bit cryptic, but gives you an appreciation of the amount of over engineering that went into this "user presence prediction" thing that apparently only serves to handicap the Surface.

But you're not seeing this on your SP4? Interesting.

After  update KB4022716 on June 28, the Surface Pro 4 display cannot resume from sleep. You have to unplug the dock and plug again to resume. Or hold power button untill it prompt you to power off.