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HDMI Q&A - The One Connector World

purbeast's Avatar purbeast
10:40 AM Liked: 27
post #1 of 7
02-06-2013 | Posts: 858
Joined: Feb 2004
About 4 weeks ago I finished all of my in-wall wiring. I've been using my projector on the weekends to watch 4-5 movies or so with no issues. I've also gamed on my PS3 a bit in this time with having no issues.

This past weekend i had been playing my XBox 360 for a good 3 hours or so when the screen flickered for a second black, then came back on. I was like wtf, and then it happened again like 2x in a row pretty much right after that. the whole time the sound was still playing.

So about 30 minutes later it happened again.

The following day of was superbowl sunday and we watched the game for 4 hours or so straight with no flickering. I was then listening to some music on pandora on my receiver, and noticed it happened again. So this wasn't on the 360 input, it was on another one.

Last night I was playing PS3 and this happened more than once again, like 30 minutes in. And I only played about 90 minutes total. It was frustrating as hell and I tried messing with some HDMI cables.

I currently have a 25' HDMI cable from my projector in the wall to a wall jack in a closet. From that wall jack I have another HDMI cable connected to my receiver. then I have a bunch of HDMI cables running to the other components. Also, the 25' cable I'm using now is the same one that I had been using for a month or so before I did the in-wall wiring and never had this issue.

So I swapped the hdmi cable going from the wall jack to the AVR, since I had seen this issue on 3 separate inputs. it seemed to fix the problem, but then I saw the flicker happen 2 more times. They didn't happen in succession like the previous ones did, but they happened.

I also tried using the other HDMI output on my receiver, with the original cable, and saw this issue as well.

So does anyone have any other suggestions on what to trouble shoot if I see this popping up again? Luckily I did run another HDMI cable in the wall so last resort, I will take the faceplates off the walls and try plugging the other HDMI cable into the projector. But I kind of want to get rid of all other possibilities before I go that route.

Has anyone heard of these HDMI wall jacks causing issues like this? Also, could running my HDMI cables (the ones that go to the components and AVR, not the in wall one) right along with the power cables that plug into the wall cause something like this? I always figured that if something was messed up with the HDMI cable, that the sound wouldn't come from the HDMI cable either.

Or could this be caused from a heating issue? The first 2 days this happened it didn't happen for at least 3 hours of components being on, although last night it happened within an hour, so I'm not sure if that coudl be the culprit.

My projector is a Panasonic 8000AE, and my receiver is a Denon 4311CI. I have posted questions over in the projector thread, but they all pretty much think it is an HDMI cable issue, so I'm kind of looking for any help in exactly what to trouble shoot. The fact that it doesn't happen all the time or immediately makes testing it out kind of hard, because I have to make changes then play for a while and use it for a while.
alk3997's Avatar alk3997
10:53 AM Liked: 88
post #2 of 7
02-06-2013 | Posts: 3,722
Joined: Jan 2004
The first thing I would try is to run an out-of-wall shorter cable to the projector as a test. Make sure the cable is a certified High Speed cable.

Does this only happen with 1080p content? Are all of your sources set at 1080p or do you have the 4311 set to scale to 1080p?

Try disabling deep color in the PS3, the 4311 and the projector (you have to do all three) and see if that improves anything.
purbeast's Avatar purbeast
11:28 AM Liked: 27
post #3 of 7
02-06-2013 | Posts: 858
Joined: Feb 2004
Quote:
Originally Posted by alk3997 View Post

The first thing I would try is to run an out-of-wall shorter cable to the projector as a test. Make sure the cable is a certified High Speed cable.

Does this only happen with 1080p content? Are all of your sources set at 1080p or do you have the 4311 set to scale to 1080p?

Try disabling deep color in the PS3, the 4311 and the projector (you have to do all three) and see if that improves anything.

Well prior to this being in-wall, I was using the identical cable (25 foot one) to hook it all up. And I never saw this issue.

And the "flickering" Issue has been on PS3, Xbox 360, as well as Pandora which is just a GUI straight on the AVR.
alk3997's Avatar alk3997
11:45 AM Liked: 88
post #4 of 7
02-06-2013 | Posts: 3,722
Joined: Jan 2004
Even a GUI has a resolution and a frame rate. What resolution is the GUI? Your projector will tell you.

Even though a GUI appears to be just a still image, it is a series of video frames - just all of the same thing until the GUI changes. I could make a GUI that has 2560 lines of resolution and runs at 120Hz. So if you have the 4311 set to output at 1080p, then the GUI would be output at 1080p, as well as everything else.

And, even if you previously tested the cable that doesn't mean that the 25 foot cable is OK today or that your projector didn't have a failure. As you said, the audio out of the Denon is still good. So does your projector have a problem? Your symptoms certainly point towards that as a possibility along with a problem with the 25 foot cable as a possibility.

I'm not there to look at your equipment which is why, if you want help, it is important to answer the questions that were asked.

So, let's try again - what is the resolution of the 4011CI output? Did you use certified High Speed cables? Did you try disabling Deep Color in all three components of the chain?
purbeast's Avatar purbeast
12:03 PM Liked: 27
post #5 of 7
02-06-2013 | Posts: 858
Joined: Feb 2004
The cable is certified I believe. This is the cable I have here.

http://www.amazon.com/BlueRigger-High-Speed-Cable-Ethernet/dp/B005LQ83EI/ref=sr_1_1?s=electronics&ie=UTF8&qid=1360177312&sr=1-1&keywords=blue+rigger+25+foot+hdmi+cable

As far as the actual resolutions, I know the 360 and PS3 are both at 1080p and actually outputting through the AVR at 1080p, but not sure about the GUI coming from the AVR. I won't be able to find out until I get home. Same goes for the deep color option - I'm not sure if it is on or not but won't be able to check until this evening when I'm home.
purbeast's Avatar purbeast
06:49 AM Liked: 27
post #6 of 7
02-07-2013 | Posts: 858
Joined: Feb 2004
Last night I decided to move the HDMI cable in my projector to a different input, and I played PS3 for about 2.5 hours and did not have any issues. I'm going to just keep it on this input and see if I get the issues at all anymore. If not then it sounds like the one projector input may have an issue.
alk3997's Avatar alk3997
07:13 AM Liked: 88
post #7 of 7
02-07-2013 | Posts: 3,722
Joined: Jan 2004
Sounds like a good plan. You might use a strong flashlight and see if you can see any issues with the socket that has the probem. It is also possible that one of the conductors wasn't fully connecting, although that should be a long shot.
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