Windows 7 sleep, and coma

[Ken H]

Two issues, not sure if they are related.

1) My Windows 7 PC will not go to sleep. When you use either the WMC sleep button or from the main Windows menu, it acts like it's going to sleep but as soon as the power light starts to flash it restarts all by itself.

2) I use an AV receiver with HDMI input from the WMC PC. When I turn the AV receiver and the HDTV off, at some point the PC goes into a coma - the power is still on but no video, no audio, and the PC will not respond to any command except to restart if I hold the power button down until the power light goes off.

[stuartm]

Have you done the powercfg check for something wanting the system to stay awake?

i.e. run powercfg -requests from a cmd window running with admin privileges.

I have also seen this behavior with badly behaving cards in my PCIE slots. Notably, I had to try several
different Hauppauge 2250 tuner cards to find ones that would work properly in my HTPCs.

To check if it's that, remove any such cards and see if it sleeps properly.

The second problem sounds like possible handshake problems between tha Reciever and the PC, you could try
something like one of these:

https://www.amazon.com/StarTech-com-VSE ... 7KNV2Y2BSD

[Space]

1. This can be caused by a device on your system waking it up, often a USB connected device. "powercfg -requests" can sometimes pinpoint the problem, as indicated by stuartm.
   See here: https://support.microsoft.com/en-us/hel ... o-to-sleep
2. This may be caused by the graphics driver you are using, try the latest driver, and if that doesn't work, maybe try older drivers.

[dmagerl]

If it goes to sleep and then immediately wakes up, powercfg -lastwake will tell you what woke it up.

Wireless keyboards & mice very often cause this problem.

[Space]

Oops, yes, it is the lastwake option that can tell you what made the PC wake up, not requests. It's been a while since I messed with this...

[dmagerl]

It's been a long time for me too. Both -requests and -lastwake are needed to troubleshoot.

My wake issues have always revolved around srvnet not letting it go to sleep. It works for a long long time and then it keeps coming back to haunt me.

[Space]

The -requests option tells you which processes have requested that the system NOT go to sleep. So if you try to put the system to sleep while it is being told to not go to sleep, it should just ignore your request (or put the system in to "away mode" instead of sleep mode).

It sounds like the OP is not having this problem, in that the system appears to go to sleep but then just wakes up again right away. But I may be mistaken in that analysis.

[Ken H]

1) I removed all USB devices and the PC still refuses to go to sleep.

2) The graphics card, an nVidia GT 730, is running the most current driver. I believe the problem is when the AV receiver is off the graphics card knows there is no audio device connected and WMC locks up.

[Ken H]

It sounds like the OP is not having this problem, in that the system appears to go to sleep but then just wakes up again right away. But I may be mistaken in that analysis.

No, you are correct. The video stops, and it takes a few seconds for the power light to go off, then immediately comes back on, the video comes up, and the unit is back on.

[Space]

After it wakes up open a cmd window and run "powercfg -lastwake". What does it say?

[Crash2009]

2) The graphics card, an nVidia GT 730, is running the most current driver. I believe the problem is when the AV receiver is off the graphics card knows there is no audio device connected and WMC locks up.

How many outputs on the GT 730 ? Are you using HDMI to amp and HDMI to monitor If so, you might want to get a powered HDMI splitter....One HDMI out of the GT to the splitter, then one HDMI to the monitor and the 2nd HDMI to the amp.

Have you seen any HDCP or Display Driver errors on the monitor?

[Ken H]

After it wakes up open a cmd window and run "powercfg -lastwake". What does it say?

It says:

Wake History Count - 1
Wake History [0]
Wake Source Count - 0

[Ken H]

How many outputs on the GT 730 ? Are you using HDMI to amp and HDMI to monitor If so, you might want to get a powered HDMI splitter....One HDMI out of the GT to the splitter, then one HDMI to the monitor and the 2nd HDMI to the amp.

Have you seen any HDCP or Display Driver errors on the monitor?

I use just the HDMI output from the GT 730; it goes from the GT 730 into a Yamaha RX-A660 AV Receiver, then into a Samsung UN46C6300 HDTV. I have never got any HDMI or driver errors from any of the devices. The receiver is brand new.

Using an HDMI splitter would defeat the purpose of using the receiver to switch audio and video from the different sources I have in the system, although I do have an HDMI splitter and I will try it at some point to see what happens.

Thanks to everyone for the contributions here.

[Space]

After it wakes up open a cmd window and run "powercfg -lastwake". What does it say?

It says:

Wake History Count - 1
Wake History [0]
Wake Source Count - 0

It is not listing what waked the computer with that command.

You can find more troubleshooting info here:
https://www.howtogeek.com/122954/how-to ... identally/

[Ken H]

Thx, I'll take a look and report back.

[Paul Anderegg]

I had similar issues....first time was the Intel Graphics driver which was unsleeping and black screen freezing my PC, also failure to be able to shutdown...second round turned out to be my Asus motherboard Windows fan control settings...apparently, this communications between windows and the MB was popping my PC out of sleep almost immediately.

Paul

[suttonb1]

I bet it's an issue with your NIC configuration.

-open Properties for your network card
-click Advanced
-scroll to bottom of the Property list
-Disable "Wake on Link"
-May also need to disable "Wake on Pattern Match"
-click OK to save

Try to Sleep and see if it works!

[Ken H]

I bet it's an issue with your NIC configuration.

-open Properties for your network card
-click Advanced
-scroll to bottom of the Property list
-Disable "Wake on Link"
-May also need to disable "Wake on Pattern Match"
-click OK to save

Try to Sleep and see if it works!

Sorry not have got back sooner. Yes it was the network card. Give that man an El Producto!

[DavidinCT]

I have also seen this behavior with badly behaving cards in my PCIE slots. Notably, I had to try several
different Hauppauge 2250 tuner cards to find ones that would work properly in my HTPCs.

Glad to see the OP resolved his problem..

Funny story that was shocked on. I needed a LPT port for a display on my WMC case. SO I went on ebay and found some knock off card and got it all working. About 8 months later with a push from the wife to "save power", I tried playing with sleep, and just like others, it would go to sleep and just wake up. powecfg would not give me any usable information. I went crazy with it, device by device removing one by one and testing. I found it to be that LPT PCIe card.

With a White box that said PCIe LPT card only, no manufacture, I thought I would be spending more money. There was no model or anything on this card. so I grabbed the name off a main chipset on the board, found the company who made the chipset, took a picture of the card and emailed them asking for help. With in 1 hour, I got a response (I was in mega shock), take a razor, cut 2 connections on the card they sent a pic on what to do. I did as they said...

Sleep worked fine from there in... Never thought that would happen on a knock off card...