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Cannot have Dual Screen & HDMI Sound at the same time...?

post #1 of 11
Thread Starter 
No matter what configuration that I do--either by making use of my onboard Intel HD Graphics & Audio, my last NVIDIA GTX 465 card that processed audio, or my new AMD 6950--I cannot have both of my monitors running with sound processing via the HDMI input to my AV receiver (Pioneer VSX520).

With my primary monitor powered on, I can receive and play 5.1 audio absolutely fine. However, as soon as I turn on the 2nd monitor, the screen flickers, the 2nd monitor turns on, and sound becomes disabled with the speaker icon in my System Tray gets a big red X, claiming that nothing is plugged in. All the while, my receiver shows on the LCD that it is receiving a valid HDMI audio stream (only registers when I boot into Windows). It is not until I either turn off the monitor or pull the plug out from the HDMI out from the back of the AV receiver, turn off the AV receiver, and turn the AV receiver back on that sound works again. It is extremely annoying.

This occurs while passing the video from my GPU through my receiver and into my display using a HDMI (M) -> DVI (f) adapter from the output of my receiver, while attempting to Eyefinity with my receiver registered as the third "display", and using all of the possible arrangements of cables and adapters from the back of my GPU (which has 2 DVI, 1 HDMI, and 2 DP) to my monitors and AV receiver that I could think of.

What is most desirable is to have the first monitor connected directly to my GPU via DVI, and for my second monitor to receive its video after being passed through my AV receiver to process the audio, which be directly connected directly connected to my GPU's HDMI out. Currently, in this configuration, it can process both the 2nd display and audio, but never together..

confused.gif
Help! rolleyes.gif

my graphics card: XFX Double D HD-695X-CDFC Radeon HD 6950 2GB
my two monitors: Apple Cinema Display 23" A1082 M9178LL/A Note: DVI out is physically attached to monitor. Has Firewire also. No DP input.
my AV receiver: Pioneer VSX-520-K 5.1-Channel 3-D Ready A/V Receiver
adapters I've used: 1 2 3 4 Note: None of them are "active" I don't think. DVI input on Apple monitor cable is DVI-D Single Link, while on the adapter it is DVI-I Dual Link. I don't know if these details make any difference..
post #2 of 11
Hmmm...very odd. I have used dual monitors (though my second monitor was a Panasonic Plasma TV thorugh a Pioneer VSX-1120-K) without a problem. I used Clone mode and it was using an nVidia 560TI. Both monitors are HDCP compliant - can you verify if both of yours are? The adapters I used came with the video card.
post #3 of 11
Been dealing with this myself. Apparently Win7 can only put the audio out on one device at a time, and each HDMI connection is a separate device. I tried a bunch of different work arounds (HDMI splitter, AVR with dual outputs, etc.), but each created new problems.

I finally settled on using an AutoHotKey script to change the default audio device between the two HDMI outputs and mapped it to the red button on my remote using EventGhost. I still won't be able to have sound at the same time on both, but it's not likely I'll ever need to be using both monitors at the same time anyway as they are in two different rooms.
post #4 of 11
Thread Starter 
Quote:
Originally Posted by cybrsage View Post

Hmmm...very odd. I have used dual monitors (though my second monitor was a Panasonic Plasma TV thorugh a Pioneer VSX-1120-K) without a problem. I used Clone mode and it was using an nVidia 560TI. Both monitors are HDCP compliant - can you verify if both of yours are? The adapters I used came with the video card.
I'll play around with clone mode and see what happens. And I will look more into the HDCP compliancy. Good ideas! A guy is telling me on another forum that he is having no issues doing what I underlined in my original post, passing the connection through his receiver using ATI CCC, so I know its possible!

Quote:
Originally Posted by ncarty97 View Post

Been dealing with this myself. Apparently Win7 can only put the audio out on one device at a time, and each HDMI connection is a separate device. I tried a bunch of different work arounds (HDMI splitter, AVR with dual outputs, etc.), but each created new problems.
I finally settled on using an AutoHotKey script to change the default audio device between the two HDMI outputs and mapped it to the red button on my remote using EventGhost. I still won't be able to have sound at the same time on both, but it's not likely I'll ever need to be using both monitors at the same time anyway as they are in two different rooms.
Sorry to hear you are suffering from the same issue! But, you're lucky, my monitor are sid-by-side unfortunately.
Good idea with the EventGhost workaround. At least that's an option.

Thank you so much guys!
post #5 of 11
Windows 7, since PlayReady their digital rights management program, is inept at recognizing a protected audio path and managing a dual monitor setup. I have USB speakers that I use with my monitor and an AVR that I use with my plasma TV. For me, when the audio get screwed up, I can get audio to work by fiddling with the default audio device setup or shutting down and restarting the AVR and plasma TV or rebooting.

Microsoft acknowleges that Windows 7 has problems with dual monitor setup. You have stumbled upon this problem.
post #6 of 11
Thread Starter 
So you think it has to do with PlayReady, huh? Dang. But some people have told me that they are using the same exact setup and it is running successfully ....
And I'm not monkeying around with USB or anything...

Thanks
post #7 of 11
Playready is my best guess. I can can get audio for the monitor and audio for the TV, sometimes both at once. However, sometimes I need to change the default audio device, or shut down the AVR and TV or reboot. I suggest you treat this as a HTPC experiment and see what you can get to work. However, Microsoft is pushing Windows 8 as a dual monitor solution and I intend to avoid Windows 8 until it is a proven HTPC desktop solution.

I am using extended mode so what is on the TV is like a separate window from what is on the monitor. The TV uses HDMI audio from the AVR. Of course the USB speakers do not use HDMI.
Edited by Postmoderndesign - 8/22/12 at 1:36pm
post #8 of 11
Thread Starter 
Quote:
Originally Posted by Postmoderndesign View Post

Playready is my best guess. I can can get audio for the monitor and audio for the TV, sometimes both at once. However, sometimes I need to change the default audio device, or shut down the AVR and TV or reboot. I suggest you treat this as a HTPC experiment and see what you can get to work. However, Microsoft is pushing Windows 8 as a dual monitor solution and I intend to avoid Windows 8 until it is a proven HTPC desktop solution.
I am using extended mode so what is on the TV is like a separate window from what is on the monitor. The TV uses HDMI audio from the AVR. Of course the USB speakers do not use HDMI.
Do you think that getting an "Active" adapter might fix the Playready drm issues? Or do you think maybe the issue lies with my receiver being a noncompliant device or something?
post #9 of 11
All my hardware is DRM compliant. The dual monitors worked fine under Windows 7 and I was using the analog motherboard audio outputs for programs running on my monitor and HDMI for video on my TV. Then all of the sudden the analog audio output stopped working. Then I started reading about problems, I seem to remember with Ceton tuners caused by Playready. Then I got the USB speakers. Lately I have read an acknowledgement by Microsoft that Windows 7 does not work well with dual monitors but Windows 8 works.

I guess that getting DRM compliant hardware will help you. But don't expect everything to work smoothly all the time.
post #10 of 11
Thread Starter 
Quote:
Originally Posted by Postmoderndesign View Post

All my hardware is DRM compliant. The dual monitors worked fine under Windows 7 and I was using the analog motherboard audio outputs for programs running on my monitor and HDMI for video on my TV. Then all of the sudden the analog audio output stopped working. Then I started reading about problems, I seem to remember with Ceton tuners caused by Playready. Then I got the USB speakers. Lately I have read an acknowledgement by Microsoft that Windows 7 does not work well with dual monitors but Windows 8 works.
I guess that getting DRM compliant hardware will help you. But don't expect everything to work smoothly all the time.
Thank you for the valuable info. That is very unfortunate.. But it def. sounds like it may be a DRM issue. Unfortunately, I'm not willing to go all out and buy new hardware for a gamble to see if that is indeed the issue I am encountering. There's got to be workaround...
post #11 of 11
Wanted to bump this thread. So my solution above was ok, but not perfect. I kept having PlayReady issues where I would get some error (like subscription needed or whatever). It was intermittent, but ultimately unusable as I would have to reboot the HTPC to clear it.

So I thought maybe the issue was that when I set up PlayReady, I was only connected to my AVR -> Projector. So I needed a rebuilt anyway due to another issue. I set up both displays and replicated the desktop over them. When I went to set up PlayReady though, it told me that my connection did not meet the minimum requirements and would not install. If I unplugged either display, it would run fine, just not with both plugged in.

So is this an intentional PlayReady limitation you think? Anyway around it?
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