HDMI Red Static

GoodRevrnd

Diamond Member
Dec 27, 2001
6,801
581
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I get heavy red static over all HDMI inputs whether it's the XBox or HTPC, which tells me it's the cable going from the receiver to the TV. This is very aggravating since it will be very difficult to remount the TV now with furniture all in place. The HDMI cable runs through the wall, potentially alongside and potentially crossing in wall power cable. This power cable is used solely to power the tv though, and is not part of the main house grid. Would this be enough to cause HEAVY red static on the video signal or is it probably just a bad cable?
 

Number1

Diamond Member
Feb 24, 2006
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126
Have you tried another HDMI cable between the receiver/TV to see if that made a difference?
 

GoodRevrnd

Diamond Member
Dec 27, 2001
6,801
581
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Not really possible at this point, it's running through the wall and I don't have a spare long enough.
 

Modelworks

Lifer
Feb 22, 2007
16,240
7
76
Does it look like little sparkles in the picture ?
If so that is a cable that is either too long, improperly shielded or could have a nail driven through it, seen that happen with people hanging pictures.

When they test HDMI cables they send what they call the eye pattern through them. That pattern starts to break up just before the signal is lost . People think HDMI is digital so it is all or nothing but that isn't so. Digital can lose quality just like any other signal and it doesn't mean it goes out completely. Sparkles occur on the threshold between where the picture is good and you start to see blocks.

Good eye pattern
s2gx-rollout-6g-eye.jpg


Bad eye pattern, distorted, not proportional, signal crossover.
1394b-eye-pattern_lg.gif



Bad HDMI cable
nature-plasma-sparkles.jpg
 
Last edited:

CubanlB

Senior member
Oct 24, 2003
562
0
76
Are you using any type of image scaling with your receiver? (and what receiver is it)

If so try turning it off and see if that fixes the issue. Some receivers have scaling chips that are notorious for having scaling problems.

Have you tried bypassing the receiver and connecting the one HDMI cable that goes directly to the tv to either of your devices?

If the sparkling continues it could be an issue with the tv or the cable.

If you installed the tv, was the hdmi squeezed in any way? HDMI cables and ports are more fragile than you may think.

anyway, just for troubleshooting purposes get another cable and run it outside the wall for now to help you narrow down the problem.