Weird shaking picture

[soapdishbandit]

Hi everyone,

I switched out my Ceton Echo for an Xbox 360 S to try and fix the 29/59 bug (HBO, AMC were really bad with). It works better as an extender, with the exception of a weird, shaking of the picture occurring when I watch both Live and Recorded TV. Is there a fix to this? I've searched everywhere online and only found one other forum that mentioned it might be the way the xbox handles mpeg 2 files. I have 2 360's and they both do this (one is my 1080p plasma and the other a 1080p LED). Any suggestions? hank you!

[soapdishbandit]

Am I the only one who experiences this?

[barnabas1969]

I'm sorry... but to be clear... you are saying that the XBox360 shakes, but the Echo didn't, correct?

[Shackleford]

I notice this on both my extenders lately (Xbox and echo) it doesn't do it on the htpc. Seems like its related to the 29/59 issue. Not sure what's going on. I'm on Comcast maybe they changed something. The echo is much worse, makes me dizzy watching it.

[soapdishbandit]

It could the 29/59 issue, but even with 60 fps material (nightly newscast, etc...) and on local channels, it does it. But not all the time. Yeah, the Echo does it too, and on HBO, AMC, the 29 59 bug is ever so present. Very annoying for what could be such an amazing experience. Would Comcast changing to mp4 or h.264 make any difference?

[soapdishbandit]

Both of my 360's do this. They are both XBOX 360 S's. Does the original or the new E do the same? It really bugs me. I have tried setting it to 1080i, 720p, etc... but it still happens. My main TV is a 1080p plasma and the other is an older monitor I connected via vga connetion (1680x1050 res). Both exhibit this issue. Please help!

[Crash2009]

Using an Echo, finally found a channel that was shaking. Switching back and forth from last channel to shaky gave some temporary relief. Next think you know, "No Service" error. Checked my signal diag, perfect signal. Thought it might be a buffer problem so I FF/Stop/REW/Pause/Play/Etc. The shakes have gone away.

I was going to see if Wireshark could tell me anything, but since the problem has disappeared for me, I'd rather continue watching the hockey game. Channel 244 was giving me the problem.

[Crash2009]

That's strange, Tuner 2 was giving me the problem, and now I'm on Tuner 3. Oh well, back to the game.

[soapdishbandit]

Still no real answers? I read somewhere that it has to do with Xbox 360 hardware not being up to par for handling mpeg2? Any truth to this? Picture still shaking, almost like it is aliasing or antialiasing fast back and forth.

[soapdishbandit]

Still no takers? I thought the 360 was supposed to be the perfect extender in this area??? Shaking picture is driving me nuts!

[kakashisensei]

I want to chime in that I also have noticed this on my xbox 360 at 1080p. It is more noticeable when there are graphics like channel logos at the corners, stock or news tickers, etc... I see it on comcast hd channels such as History, CNN, and AMC. I do not see it on channels like Fox news. It may have to do with the 29/59 issue, but it's not flickering or frame rate stuttering. Its as if every 10 frames or so is shifted 1-3 pixels vertically downward from the last 10 frames, and it keeps alternating back and forth.

If I force the xbox to output 1080i, I don't get the issue, but the image is noticeably more blurred, especially around the edge of graphics. If the xbox is forced to output 720p, it has the same shaking picture issue. My tv is 1080p.

I have used a linksys dma2100 and a d-link dsm-750, and they do not have this issue.

I also wanted to add that my xbox is the larger white one (Jasper model).

[jjwatmyself]

On the PC, under task manager, what is the Ethernet utilization during viewing of a problem channel? This percentage is of the link speed. So 14% of 100 Mbps is 14Mbps, which is most likely MPEG2, knowing Comcast and Cox. We don't really know enough about cable providers implementation of H.264 yet, (mpeg4 part 10) but the bandwidth consumption on the NIC will help to differentiate what this stream is. Regarding the 29/59 comment, I'm assuming this is referring to FPS, which I have not tested with, but would likely almost double the bandwidth.

[soapdishbandit]

I want to chime in that I also have noticed this on my xbox 360 at 1080p. It is more noticeable when there are graphics like channel logos at the corners, stock or news tickers, etc... I see it on comcast hd channels such as History, CNN, and AMC. I do not see it on channels like Fox news. It may have to do with the 29/59 issue, but it's not flickering or frame rate stuttering. Its as if every 10 frames or so is shifted 1-3 pixels vertically downward from the last 10 frames, and it keeps alternating back and forth.

If I force the xbox to output 1080i, I don't get the issue, but the image is noticeably more blurred, especially around the edge of graphics. If the xbox is forced to output 720p, it has the same shaking picture issue. My tv is 1080p.

I have used a linksys dma2100 and a d-link dsm-750, and they do not have this issue.

I also wanted to add that my xbox is the larger white one (Jasper model).

Yeah, those are the channels. I believe it is a 29/59 issue, but even on 60fps content (i.e. CNN), local broadcasts, it will still sometimes have a very fast shake or blur. I have a 1080p plasma, and the resolution is set to 1080p in the XBOX 360 settings. I am almost 100% positive this is 29/59 related. It isn't flickering to the amount I have seen on some posts (especially HBO), but it does shake, ever so slightly. It is almost hard to see unless you look for it (which, unfortunately I do all the time now!). I am hoping that Comcast switching to MPEG 4 encoding will fix this issue once and for all! Here's hoping!