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Discussion Starter · #1 ·
I run 2 360s. The one has no issues, but lately my second one tends to have a lot of screen flicker when I boot it up.


I have both 360s connected to a monoprice HDMI switcher, which plugs into my Sony receiver. I am using gold plated HDMI cables from monoprice also. I've switched the cable, and it doesn't help. My TV is 1080p if that helps. Any suggestions on what could be causing this? Does the 360 need time to warm up to eliminate this issue? Thanks in advance
 

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Bear in mind that HDMI is digital, so bytes of data either get to their destination correctly or they don't. Folks with cable issues have reported "sparklies", where pixels don't always arrive with the correct color data, but I'm not so sure about screen flickering. Is the screen going completely black for a frame here or there, or is it just an issue with wavering brightness?


Still, the problem could be an electrical issue. Perhaps try isolating the problematic Xbox 360 from the TV itself by moving it to another wall outlet or power strip?
 

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I would try hooking each 360 up to the tv directly without the switch in the picture and see if you get the same effect. I suspect that the switch may be the culprit.
 

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Discussion Starter · #4 ·
think having display discovery enabled was the issue.
 

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I've been having the same issue for a year and haven't been able to resolve it...


I hope disabling display discovery fixes it. Fingers crossed.


Out of curiosity, what brand/model display do you have ?
 

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Occasional screen flicker on an HDMI connection is almost always caused by signal integrity issues on the I2C serial bus portion of the HDMI cable that is used for HDCP exchange. HDCP changes encryption keys every second or so. If any of those exchanges fails due to corrupted data, the screen goes dark until (fraction of a second) the error is recovered. As mentioned above, signal integrity problems on the 4 diff pairs in the HDMI cable result in "sparklies", not flickering. Disabling display recovery may stop the un-needed HDCP exchanges along with any EDID display capability retrieval. This will likely stop the flickering, but bear in mind that you will not be able to play DVDs via HDMI without successful HDCP exchange.


P.J.
 

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My flickering happens every time I boot up. (after the system is on for 3 mins or so) It flashes on and off for about 20 seconds then is fine.


I will report back with my findings.
 

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Why do you have your HDMI devices going in to a switch and then in to the receiver? Pick one device for switching, as the more stuff you daisychain with HDMI, the more likely the stupid format is to break.


Go device to switch to display, not device to switch to another switch to display.
 

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Discussion Starter · #10 ·

Quote:
Originally Posted by darklordjames /forum/post/18264106


Why do you have your HDMI devices going in to a switch and then in to the receiver? Pick one device for switching, as the more stuff you daisychain with HDMI, the more likely the stupid format is to break.


Go device to switch to display, not device to switch to another switch to display.

Explain please.


My receiver has 3 HDMI inputs. Right now I have my Western Digital TV box/Att Uverse box/HDMI switch plugged into my receiver.

Only 2 things plugged into the HDMI switch are my 2 xbox's


What setup do you recommend then? If I hook the HDMI switch to HDMI 2 on the tv, I don't think I will get audio with my 360s via my receiver,only my tv.
 

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Discussion Starter · #11 ·
I guess Ill leave the HDMI switch into the receiver then.
 
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