Video not passing through amp

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gouranga20

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Sep 17, 2013
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Hi, I'm pulling my hair out over this. So I want to run my PC (Win 10) through HDMI, through my Denon AVR-1912 amp and from there to my TV. It used to work fine, sometimes intermittent, but I got the video and 5.1. I've bought a new TV and now I've got problems with the video. When I turn the PC on I get the loading screen (Asus logo, telling me to press Del or F2 and a spinning wheel), then it goes blank and I get a message on the screen saying no video. I have plugged straight in to the TV and it works fine. Just not through the AMP. I have swapped cables with ones I know work, inputs on AMP I know work. Everything else runs fine (I also have Chromecast and PS4 running through the AMP). Any suggestions? My graphics card is an NVIDIA GeForce GTX 670.

*Edit: I uninstalled all Nvidia drivers and restarted PC. The desktop came up through the amp at low res for about 1 minute then I think it re-enabled the Nvidia driver and I lost the video again
 
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OK, I don't think a splitter is the best way to go. It can cause other oddity's when testing. If you can get something to get it going from friends or family just to test with that would be a good thing. It would be silly to buy anything to try this out.

I guess when you can try it, when the PC posts and displays a low res your fine. But when windows boots and the drivers load I think it looks at the a/v receiver for it to send display information that has already been sent. So it doesn't know what to do. For what ever reason the three pieces just are not actively talking back and forth.

What you want too see is when both monitors are hooked up, is if windows even sees anything connected on the HDMI for the tv, Or if it only sees the second display you have connected.

If it does see the tv and a/v receiver, check the resolution settings. Tinker from there.

If it doesn't see it I am not sure how to proceed.


I know its not the nicest solution, But how about running straight to the tv on a second tv input, and running your audio out of your PC with an optical cable? I assume the optical input on the AV receiver is assignable, and of coarse that only works if your pc has an optical audio out.....
 
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Yeah I'm pulling my hair out with this one. I don't know if buying a new graphics card (which I need) or a new AMP (which I want - but the misses has a different point of view) is the way to go, or even if it would solve it. It's clearly the TV that's causing the issues as the old TV works fine. I know this TV has a PVR built in and I read somewhere that with the HDCP sometimes it can detect a PVR and say nope I'm not dealing with that as you are going to pirate a film and Leonardo Di Caprio will die a little inside. I'm gonna buy a DVI-HDMI converter tomorrow. At least then I can plug in the second monitor and they're only cheap. I'll keep cracking on but in the meantime if anyone else has any ideas that would be great. Thanks for your help muddn2urgrave
 
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Ummm what? Optical is digital. It should be Dolby and all that stuff. Optical supports Dolby digital 5.1. Unless its your pc that doesn't support it. I have been installing home theater systems for years. Until HDMI came along all Dolby was run optical. Perhaps some of the new formats are not supported? I will have to look into that.
 
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Looking at your Denon manual as well, there is an option for cec. Did you try disabling it there as well? Im not sure what tv you have or if it supports cec or has an option for it that both might need to be turned off.

I couldn't find visual processing in the amp manual, its probably there somewhere. Options like 1080/60p scaling or passthrough. Set to passthrough if there's an option so no scaling takes place.

Then connect tv directly and change to 1080p @ 30hz, see what happens then
 
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Hey sorry. Fell asleep was 3.30am. I'm not great with the optical/digital thing but I think I meant the different formats like DTS etc. I have turned off CEC in both the receiver and PC but still no go. All fully up to date on software. I'll have a look at the passthrough...
 
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OK the refresh rate @ 1080p only had an option of 60hz, 59hz, 50hz, 24hz or 23hz. I tried it on all of those and no go. I had a look around the setup menu of the receiver and when the PC is connected to the receiver, under HDMI info I get the following:

Signal info.
Resolution: ---
Color space: YCbCr 4:2:2
Pixel depth: ---

Monitor info
Interface: HDMI 3D
Support res: 480i/p, 1080i 50hz / 60hz, 720p 50hz/60hz, 1080p 50hz/60hz, 1080p 24hz
 
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Ok thanks

Under nvidia cp where you can change colour space format, try rgb. See if there's an rgb setting for the tv hdmi input. As for the receiver, not sure if you can change colour format or it just auto detects. Try rgb anyhow in pc and tv.
 
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What outputs do you have on the gtx 670 ??

If you have more than 1 hdmi then you can run 1 straight to the tv , a second to the denon.

Set the first as primary monitor ,& set audio ouput in playback devices to the second hdmi.

Its a 'dirty' solution but will work
 
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Just saw your listed inputs, a dvi-d or dp to hdmi cable to the tv & a hdmi to hdmi cable to the denon should do the job.

Your issue to me is definitely a handshaking issue, you're getting a display until the nvidia drivers kick in & enable hdcp content.

What hdmi input are you actually using on the tv for the denon?? By rights you should be using the arc enabled one,if you already are though then swap to a non-arc one & try again.







 
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