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Weird Windows 8 Power Management Issue

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#16 StarkWiz

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  • Joined: 28-November 06
  • Location: Mumbai, India
  • OS: Windows 8 Pro 64-bit

Posted 24 November 2012 - 08:22

I went through your setup and video.
I have few questions as well as suggestion as below:
1. Do you still have Windows 7 ? I would like you to test the same thing as in the video you posted where your samsung monitor, TV and onkyo av receiver are all connected to your pc and turned on. And check if it gives any issue as I think it might be related to Onkyo settings as below.
2. I think your TV is turning off the audio. I noticed that there is a setting in Onkyo which lets TV control the audio output in Onkyo. Can you check what happens while your TV is off and just Samsung monitor and Onkyo is on ? (Check Onkyo Manual Page 34 for settings)

I hope this helps.


#17 +Tech Greek

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  • Joined: 22-October 08
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Posted 24 November 2012 - 08:46

When your monitor is turning off it's more than likely killing the HDCP connection and therefore kills the audio. The Dell sound bars will do something similar if enabled, but it's off by default.

#18 TheGreek

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Posted 24 November 2012 - 08:48

When your monitor is turning off it's more than likely killing the HDCP connection and therefore kills the audio. The Dell sound bars will do something similar if enabled, but it's off by default.


I agree with this. It kills the conncection. So your hdmi cable stops transmitting the audio too.

#19 OP +sanke1

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  • Joined: 07-October 07

Posted 24 November 2012 - 08:54

^^ yes. This issue simply does not exist in Windows 7. Everything works flawlessly. This issue happens even if I keep my TV switched off. As soon as monitor turns off due to power settings, the whole audio stream to Onkyo receiver switches off and back on when mouse is moved.

I dont know if this Windows 8 "by design" feature.

#20 StarkWiz

StarkWiz

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  • Joined: 28-November 06
  • Location: Mumbai, India
  • OS: Windows 8 Pro 64-bit

Posted 24 November 2012 - 13:07

I think Windows 8 considers Onkyo as 2nd display device, even when the TV is off. Try switching to single display mode, using WinKey+P. That might probably disconnect you from Onkyo but not sure.
Also, did you check the HDMI audio settings in Onkyo ? Or look for option by which it would be recognized as HDMI audio only device to your PC.
From the audio options screenshot you posted it appears to be detected as display device for sure and that is correct but its causing issue in Windows 8.

#21 xendrome

xendrome

    In God We Trust; All Others We Monitor

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  • Joined: 05-December 01
  • OS: Windows 8.1 Pro x64

Posted 24 November 2012 - 13:25

Is there not an option in your menu settings of your monitor to keep audio on during sleep or low power mode?

#22 OP +sanke1

sanke1

    Member

  • Joined: 07-October 07

Posted 24 November 2012 - 13:50

Is there not an option in your menu settings of your monitor to keep audio on during sleep or low power mode?

No.

I think Windows 8 considers Onkyo as 2nd display device, even when the TV is off. Try switching to single display mode, using WinKey+P. That might probably disconnect you from Onkyo but not sure.
Also, did you check the HDMI audio settings in Onkyo ? Or look for option by which it would be recognized as HDMI audio only device to your PC.
From the audio options screenshot you posted it appears to be detected as display device for sure and that is correct but its causing issue in Windows 8.


I checked HDMI audio settings in Onkyo. But there are no configurable settings there and again, same setup works perfectly in Windows 7.

#23 Brin33

Brin33

    Resident One Post Wonder

  • Joined: 20-December 12

Posted 20 December 2012 - 18:50

Hi sanke,

I think the monitor is the wrong way to investige this as the other screen is going off as well. Is the computer going to sleep?

I have a similar issue, Mine seems to go into power save mode after 5 mins regardless of what I set the power options to.

If you leave the PC for a bout 10 seconds after the screen goes off does it still start up instantly? or has it gone into hibernate or sleep mode? I see you have it set to Never sleep, but mine ignores that at the moment! So it sleeps when the monitor goes off.

(I have Windows 8 pro, upgraded from win7. I was wondering if there is another power save menu in win 8 that is overwriting the win 7 options I had set before the upgrade.)

Brin



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