I'm interested to know what other users tend to see when running the "powercfg /sleepstudy" tool on their Surface Pro 3s (as per http://blogs.windows.com/windows/b/windowsexperience/archive/2014/06/26/sleep-study-diagnose-what-s-draining-your-battery-while-the-system-sleeps.aspx ). I'm finding that all my "InstantGo" sessions have a drain rate of between 1200 and 2200mW, which can correspond to between 10% and 20% of the battery drain in the 4 hours before the machine hibernates. Looking at the culprits, almost all the sessions show the following device running for the entire "sleep" period: USB xHCI Compliant Host Controller (\_SB.PCI0.XHC) Fx Device 100% 4:00:00 Is this expected? FWIW, I tend to leave the keyboard cover connected during sleep. Sometimes (when the drain is at the high end of the range), I also see the following: Intel(R) HD Graphics Family (\_SB.PCI0.GFX0) Fx Device 100% 4:00:00 Interestingly, during the first few days I had the SP3, the graphics driver was appearing in every session of the sleep study report. More recently, though, it has stopped appearing. Recently I've been leaving the Surface at the start screen rather than the Desktop, so this may be related - is there a recommendation about coming out of the Desktop before going to "sleep" I also never see anything in the "DRIPS histogram" - should I? What are other people seeing? On a related note, does anyone know if there is a way of changing the time before the machine hibernates? For me, 2 hours (or even 1 hour) would probably be fine - if I'm actively going from one office to another, then the "instant" resume is great, but if I'm at home, leaving the machine for a while, then 4 hours is overkill.

Perhaps you can delete your email account entirely so that no email sync may happen. If worse comes to worse, and if you have the heart for it, you can do a clean factory install of the SP3...That's what I did because I just couldn't figure it out initially. After the clean factory install, sleep was working as intended. I then systematically re-installed stuff only one at a time, getting a day or 2 between each so that I could validate that the new install did not cause issues. This is how I actually nailed down my issue to a Citrix Receiver install. I do not have much software installed and nothing installed recently. There are meaning of activators: https://msdn.microsoft.com/en-us/library/windows/hardware/dn481213(v=vs.85).aspx Red and sometimes orange colored activators in my sleep reports are always NCSI (The Network Connectivity Status Indicator activator manages system-wide Internet availability.), BI (Background Infrastructure. This activator manages background tasks for Windows Store apps.) and WNS (Windows Notification Service. This activator manages the system connection to the WNS service in the cloud.). In the BI there is red colored ppleae38af2e007f4358a809ac99a64a67c1 , what is according to this site The People, Mail, and Calendar apps. But when I open this, there are only green colored Task Entry Points. There is nothing big uploading to OneDrive. And here are some common problem examples: https://msdn.microsoft.com/en-us/library/windows/hardware/dn495348(v=vs.85).aspx Mine is like high email activity, isn't it? I tried to disable mail sync, but nothing changed.

I do not have much software installed and nothing installed recently. There are meaning of activators: https://msdn.microsoft.com/en-us/library/windows/hardware/dn481213(v=vs.85).aspx Red and sometimes orange colored activators in my sleep reports are always NCSI (The Network Connectivity Status Indicator activator manages system-wide Internet availability.), BI (Background Infrastructure. This activator manages background tasks for Windows Store apps.) and WNS (Windows Notification Service. This activator manages the system connection to the WNS service in the cloud.). In the BI there is red colored ppleae38af2e007f4358a809ac99a64a67c1 , what is according to this site The People, Mail, and Calendar apps. But when I open this, there are only green colored Task Entry Points. There is nothing big uploading to OneDrive. And here are some common problem examples: https://msdn.microsoft.com/en-us/library/windows/hardware/dn495348(v=vs.85).aspx Mine is like high email activity, isn't it? I tried to disable mail sync, but nothing changed.

I took a look at your report. Normally, you would have a number of sessions in the green, with low drain at at least 95% and then suddenly you get high drain sessions, typically following the installation of a new software or a system configuration change. Buit that's not the case for you, pretty much all sessions (except 9 and 14) were high drain sessions. Whatever happened that is causing the high drain happened earlier in the past than the last 3 days. So my advice would be to look at Programs and Features in the Control Panel and sort installs by date and see if anything got installed recently. You could try deinstalling and see if battery drain improves. Another possibility is if you have put some huge files on your OneDrive folders on the Surface. I believe OneDrive may keep uploading/downloading files even in sleep mode and that will obviously require wireless and disk drive power, leading to a higher battery drain. Why does my Surface Pro 3 have high battery drain in sleep? I reinstalled drivers for WiFi, Bluetooth, firmware and nothing helped. There are sleep and battery report from my Surface Pro 3: http://1drv.ms/1dVeTyQ Some time ago it didn't lose any % in sleep, but now more than 10 or 15 %.

Why does my Surface Pro 3 have high battery drain in sleep? I reinstalled drivers for WiFi, Bluetooth, firmware and nothing helped. There are sleep and battery report from my Surface Pro 3: http://1drv.ms/1dVeTyQ Some time ago it didn't lose any % in sleep, but now more than 10 or 15 %.

What should "sleepstudy" show for a Surface Pro 3

Anonymous

I'm interested to know what other users tend to see when running the "powercfg /sleepstudy" tool on their Surface Pro 3s (as per http://blogs.windows.com/windows/b/windowsexperience/archive/2014/06/26/sleep-study-diagnose-what-s-draining-your-battery-while-the-system-sleeps.aspx).

I'm finding that all my "InstantGo" sessions have a drain rate of between 1200 and 2200mW, which can correspond to between 10% and 20% of the battery drain in the 4 hours before the machine hibernates.

Looking at the culprits, almost all the sessions show the following device running for the entire "sleep" period:

USB xHCI Compliant Host Controller (\_SB.PCI0.XHC)	Fx Device	100%	4:00:00

Is this expected? FWIW, I tend to leave the keyboard cover connected during sleep.

Sometimes (when the drain is at the high end of the range), I also see the following:

Intel(R) HD Graphics Family (\_SB.PCI0.GFX0)	Fx Device	100%	4:00:00

Interestingly, during the first few days I had the SP3, the graphics driver was appearing in every session of the sleep study report. More recently, though, it has stopped appearing. Recently I've been leaving the Surface at the start screen rather than the Desktop, so this may be related - is there a recommendation about coming out of the Desktop before going to "sleep"

I also never see anything in the "DRIPS histogram" - should I?

What are other people seeing?

On a related note, does anyone know if there is a way of changing the time before the machine hibernates? For me, 2 hours (or even 1 hour) would probably be fine - if I'm actively going from one office to another, then the "instant" resume is great, but if I'm at home, leaving the machine for a while, then 4 hours is overkill.

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

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82 answers

Anonymous

2015-05-12T00:19:10+00:00

Perhaps you can delete your email account entirely so that no email sync may happen.

If worse comes to worse, and if you have the heart for it, you can do a clean factory install of the SP3...That's what I did because I just couldn't figure it out initially. After the clean factory install, sleep was working as intended. I then systematically re-installed stuff only one at a time, getting a day or 2 between each so that I could validate that the new install did not cause issues. This is how I actually nailed down my issue to a Citrix Receiver install.

I do not have much software installed and nothing installed recently. There are meaning of activators: https://msdn.microsoft.com/en-us/library/windows/hardware/dn481213(v=vs.85).aspx Red and sometimes orange colored activators in my sleep reports are always NCSI (The Network Connectivity Status Indicator activator manages system-wide Internet availability.), BI (Background Infrastructure. This activator manages background tasks for Windows Store apps.) and WNS (Windows Notification Service. This activator manages the system connection to the WNS service in the cloud.). In the BI there is red colored ppleae38af2e007f4358a809ac99a64a67c1, what is according to this site The People, Mail, and Calendar apps. But when I open this, there are only green colored Task Entry Points. There is nothing big uploading to OneDrive.

And here are some common problem examples: https://msdn.microsoft.com/en-us/library/windows/hardware/dn495348(v=vs.85).aspx Mine is like high email activity, isn't it? I tried to disable mail sync, but nothing changed.
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Anonymous

2015-05-11T07:25:10+00:00

I do not have much software installed and nothing installed recently. There are meaning of activators: https://msdn.microsoft.com/en-us/library/windows/hardware/dn481213(v=vs.85).aspx Red and sometimes orange colored activators in my sleep reports are always NCSI (The Network Connectivity Status Indicator activator manages system-wide Internet availability.), BI (Background Infrastructure. This activator manages background tasks for Windows Store apps.) and WNS (Windows Notification Service. This activator manages the system connection to the WNS service in the cloud.). In the BI there is red colored ppleae38af2e007f4358a809ac99a64a67c1, what is according to this site The People, Mail, and Calendar apps. But when I open this, there are only green colored Task Entry Points. There is nothing big uploading to OneDrive.

And here are some common problem examples: https://msdn.microsoft.com/en-us/library/windows/hardware/dn495348(v=vs.85).aspx Mine is like high email activity, isn't it? I tried to disable mail sync, but nothing changed.
Was this answer helpful?

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Anonymous

2015-05-10T23:39:11+00:00

I took a look at your report. Normally, you would have a number of sessions in the green, with low drain at at least 95% and then suddenly you get high drain sessions, typically following the installation of a new software or a system configuration change. Buit that's not the case for you, pretty much all sessions (except 9 and 14) were high drain sessions.

Whatever happened that is causing the high drain happened earlier in the past than the last 3 days. So my advice would be to look at Programs and Features in the Control Panel and sort installs by date and see if anything got installed recently. You could try deinstalling and see if battery drain improves. Another possibility is if you have put some huge files on your OneDrive folders on the Surface. I believe OneDrive may keep uploading/downloading files even in sleep mode and that will obviously require wireless and disk drive power, leading to a higher battery drain.

Why does my Surface Pro 3 have high battery drain in sleep? I reinstalled drivers for WiFi, Bluetooth, firmware and nothing helped.

There are sleep and battery report from my Surface Pro 3: http://1drv.ms/1dVeTyQ Some time ago it didn't lose any % in sleep, but now more than 10 or 15 %.
Was this answer helpful?

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Anonymous

2015-05-10T12:13:26+00:00

Why does my Surface Pro 3 have high battery drain in sleep? I reinstalled drivers for WiFi, Bluetooth, firmware and nothing helped.

There are sleep and battery report from my Surface Pro 3: http://1drv.ms/1dVeTyQ Some time ago it didn't lose any % in sleep, but now more than 10 or 15 %.
Was this answer helpful?

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Anonymous

Well, I'm glad things are back to normal for you! It's quite aggravating of not having connected standby as this mode significantly enhances battery endurance while keeping the tablet instantly ready for action.

It was most probably the Hyper V that initially caused something wrong with the Connection PDC phase. This item has now disappeared from your second sleepstudy report.

Thanks for the ideas. On March 21, everything was ok. On March 22, the sleep/hibernate problems started. I hadn't installed any software between those times, and the only updates I got were to Windows Defender, which happens almost daily.

Before I read your reply, I had added Hyper-v to my SP3 to see how it responded in that scenario. I know Hyper-v doesn't support connected standby, and apparently it doesn't even sleep. The power options said that closing the lid or pressing the power button would put the machine to sleep, but instead it either powers off or hibernates, I couldn't tell. At least it wasn't chewing up the battery when it powered off. I left Hyper-v installed for a day, and then last night I removed Hyper-v, but not until a system firmware update was installed.

Anyway, my SP3 now goes into connected standby with no issues, and hibernates after 4 hours. There's really no way to tell whether it was installing and removing Hyper-v that fixed the problem, or the firmware update did. I suspect it was the Hyper-v install/uninstall. Thanks again for the help! Here's the latest sleep study information:

Connected Standby Session 12

12 2015-03-27 09:08:30 4:00:42 2,101 mWh 5% of battery 524 mW Drain 98% HW: 98% ⋮

IR TRUNCATE PERCENTAGE 60%

PEP PRE-VETO COUNT 0

PEP VETO COUNT 0

CS 100% 4:00:26 0% 0:00:00 0% 0:00:00 0% 0:00:11

DRIPS Histogram

Percent of time spent in DRIPS bucketed by time interval length

Top Offenders

Top 5 offenders, ranked by active time

Disk drive (\_SB.PCI0.SAT0.PRT0) Fx Device 1% 0:02:42

Marvell AVASTAR Wireless-AC Network Controller Networking 1% 0:02:30

CPU C0 Time Processor 0% 0:00:43

Intel(R) HD Graphics Family (\_SB.PCI0.GFX0) Fx Device 0% 0:00:06

Maintenance Phase PDC Phase 0% 0:00:05

IR TRUNCATE PERCENTAGE	60%
PEP PRE-VETO COUNT	0
PEP VETO COUNT	0

Disk drive (\_SB.PCI0.SAT0.PRT0)	Fx Device	1%	0:02:42
Marvell AVASTAR Wireless-AC Network Controller	Networking	1%	0:02:30
CPU C0 Time	Processor	0%	0:00:43
Intel(R) HD Graphics Family (\_SB.PCI0.GFX0)	Fx Device	0%	0:00:06
Maintenance Phase	PDC Phase	0%	0:00:05

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