no picture on projector with HDMI output from AV receiver

[jlangr]

I have the following configuration:

Xfinity Comcast cable box
HDMI-Out from cable box wired to HDMI-2-In of a new Yamaha RX-V383BL AV Receiver
HDMI-Out from AV receiver wired to HDMI-In of a HDP404 Knoll 1080p projector, c.2008

The projector worked fine when wired with component video.

With the above configuration, I receive no picture, and the audio is also halted. The HDMI indicator on the AV receiver is off at this point.
(When I disconnect the HDMI cable from the projector, audio resumes.)

If I wire directly from the cable box to the project, I receive a picture. (The projector does not support audio.) The HDMI indicator on the AV receiver is on at this point.

If I wire the AV receiver HDMI-Out to a newer TV, I receive a picture.

The manual for the projector indicates that it supports HDMI 1.3 and also HDCP, which is what I thought it might be at first. Since it receives a picture directly from the cable box, however, maybe that's not the case.

And since the AV receiver works correctly with a TV attached, the AV receiver appears to be functioning properly.

I tried various configurations using 4 different HDMI cables; I think the cables are ruled out as a possible problem. I'd initially used a long HDMI cable but was able to set things up so that I am only using short (~5 foot) cables.

The AV receiver is configured to have HDMI Audio Output turned "off." (I also tried with it on.)

Any suggestions greatly appreciated!

 

[americanaudiophile]

If the receiver has any video processing modes turn them off.

 

[jlangr]

If the receiver has any video processing modes turn them off.

thanks for the tip. I tried a few things from the manual, but not sure any of them classify as video processing modes. (https/usa.yamaha.com/files/download/other_assets/5/891975/web_YJ186A0_EN1_RX-V383_om_UCRABGLF_En_A0.pdf)

There was this: "To decode audio bitstream signals on the unit, set the input source device appropriately so that the device outputs the bitstream audio signals directly (does not decode the bitstream signals on the playback device). For details, refer to the instruction manual for the playback device.)" ... but that's audio. I think that suggests I should be looking at my Comcast cable box; I didn't see anything there that seemed to matter.

 

[COLGeek]

MERGED QUESTION
Question from jlangr : "no picture on projector using HMDI thru AV Receiver"

I'm replacing an older AV receiver with no HDMI support, in order to be able to attach an Xbox One to the theatre system I inherited when I purchased my current house. The projector works fine when wired with component video from the older AV receiver. (And audio also works.)

The projector is a Knoll HDP404 1080p hi-def DLP projector, c.2008.

I purchased a new, inexpensive Yamaha RX-V383 ("5.1 channel 4K ultra HD") AV receiver.

Given the following setup:
* Comcast Xfinity cable box HDMI Out wired to HDMI-2 In at the receiver.
* HDMI-out from the receiver wired to HDMI In at the projector.
* AV receiver input configured to HDMI-2.
* AV receiver HDMI Audio Output setting configured to "off" (I also tried with it set to "on").

...this configuration results in no picture and no audio.
If the HDMI cable is disconnected from the projector, the receive does successfully output audio.

If I bypass the AV receiver, and wire directly from the cable box to the project, I get a picture. (The projector does not support sound.)

If I connect a TV to the HDMI output of the receiver, both audio and picture work. (I think this rules out the cables as a potential problem, yes?). I see a little red "HDMI" indicator in the AV receiver's display. This HDMI indicator disappears when the cable is hooked back into the projector.

The projector manual indicates that it has HDCP support.

My initial thought was that HDCP has something to do with this, but maybe not, since wiring directly from the cable box provides a picture. HDMI output from the receiver is also functioning, since hooking up a (newer) TV also succeeds.

Any suggestions greatly appreciated.

 

[COLGeek]

Please don't start a new thread to ask the same question. Follow-up in your original thread to arrive at a solution. Thank you.

 

[jlangr]

Please don't start a new thread to ask the same question. Follow-up in your original thread to arrive at a solution. Thank you.

sorry, that was inadvertent. This site has some issues with trying to post when you're not already logged in.

 

[americanaudiophile]

You are correct about that being audio not video.
It could be an HDMI cable issue. You can move the projector closer so trying different cables is easier since I doubt you have multiple long HDMI cables around.
As a work around you can connect the cable box to the projector with HDMI and to the receiver with an optical audio cable.

 

[jlangr]

You are correct about that being audio not video.
It could be an HDMI cable issue. You can move the projector closer so trying different cables is easier since I doubt you have multiple long HDMI cables around.
As a work around you can connect the cable box to the projector with HDMI and to the receiver with an optical audio cable.

thanks for the tip, I'll see if I can find an optical audio cable lying around.

 

[jlangr]

You are correct about that being audio not video.
It could be an HDMI cable issue. You can move the projector closer so trying different cables is easier since I doubt you have multiple long HDMI cables around.
As a work around you can connect the cable box to the projector with HDMI and to the receiver with an optical audio cable.

I was able to move things about so that I could try various cables; no dice.

Yamaha also suggested the same workaround; this does work, thank you.

 

[jlangr]

You are correct about that being audio not video.
It could be an HDMI cable issue. You can move the projector closer so trying different cables is easier since I doubt you have multiple long HDMI cables around.
As a work around you can connect the cable box to the projector with HDMI and to the receiver with an optical audio cable.

After getting the optical audio to work, I'm trying to introduce my Xbox into the mix. I tried the following:

Cable box HDMI-out to HDMI-in of Xbox
Xbox HDMI-out to projector
Xbox optical-audio-out to AV receiver

This produces sound just fine when using the Xbox. However, when I use the Xbox "live TV" feature (and after configuring my Comcast cable box in the Xbox), I receive only a picture but no audio output.

The Xbox (by default) has no problem sending its own audio out through the optical audio output. But maybe it can't convert the HDMI signal coming from the cable box to go through the optical audio out?

I mucked with some settings in the Xbox to configure sound; no sound yet. I tried pretty much all combinations of the below; here's what they're set to currently.

HDMI Audio--Off (because the HDMI cable is going to the projector)
Optical Audio--Bitstream out (I also tried "Stereo uncompressed" here)
Bitstream format--DTS Digital Surround (I also tried "Dolby Digital" here)

Thanks for any info.

 

[rgd1101]

MERGED QUESTION
Question from jlangr : "no HDMI video on projector when using Yamaha AV receiver"

I have the following configuration:

Xfinity Comcast cable box
HDMI-Out from cable box wired to HDMI-2-In of a new Yamaha RX-V383BL AV Receiver
HDMI-Out from AV receiver wired to HDMI-In of a HDP404 Knoll 1080p projector, c.2008

The projector worked fine when wired with component video.

With the above configuration, I receive no picture, and the audio is also halted. The HDMI indicator on the AV receiver is off at this point.
(When I disconnect the HDMI cable from the projector, audio resumes.)

If I wire directly from the cable box to the project, I receive a picture. (The projector does not support audio.) The HDMI indicator on the AV receiver is on at this point.

If I wire the AV receiver HDMI-Out to a newer TV, I receive a picture.

The manual for the projector indicates that it supports HDMI 1.3 and also HDCP, which is what I thought it might be at first. Since it receives a picture directly from the cable box, however, maybe that's not the case.

And since the AV receiver works correctly with a TV attached, the AV receiver appears to be functioning properly.

I tried various configurations using 4 different HDMI cables; I think the cables are ruled out as a possible problem. I'd initially used a long HDMI cable but was able to set things up so that I am only using short (~5 foot) cables.

The AV receiver is configured to have HDMI Audio Output turned "off." (I also tried with it on.)

Any suggestions greatly appreciated!