Static between screens on TivoHD

Discussion in 'TiVo Series3 HDTV DVRs' started by nikkicola11, Sep 24, 2007.

  1. nikkicola11

    nikkicola11 New Member

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    Sep 24, 2007

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    I searched all of the forums and I didn't see any other posts on this issue. For some reason when switching from live tv to Tivo Central or between menus within tivo central, there is about 1 second of static between screens, the picture is otherwise fine, and it's not really a big problem....just annoying. Any thoughts?
     
  2. clcbmason

    clcbmason New Member

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    Mine does the same thing between TV and the menu. For me it happens when the resolution in below the 720p that the menu is in. As for within the menu you got me there.
     
  3. aaronwt

    aaronwt UHD Addict

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    It happens when you switch resolutions depending on the TV. My TVs just turn blue screen or black screen so I don't see any static. If you leave it on one resolution for output you also won't have the problem.
     
  4. bkdtv

    bkdtv New Member

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    If you set the Tivo's output to 720p fixed or 1080i fixed under Settings -> Video, you'll avoid those resyncs.
     
  5. megazone

    megazone Hardcore TiVo Geek

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    To explain a bit more - all the TiVo HD menus are 720p. So if you jump from the menus to a show that is 480i or 1080i your TV has to re-sync to the new resolution. And again when you return to the menus. Some TVs handle this faster than others, and some do it more cleanly that others.
     
  6. jrm01

    jrm01 New Member

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    Are you sure the menus are always 720p? I was having this re-synch problem big time (Mits DLP) until I switched to 1080i Fixed. Now I don't ever see the problem, not even when going to menus. Made me think that the menus were 1080i also. I can't check right now, my Mits bulb died and I'm waiting for UPS.
     
  7. aaronwt

    aaronwt UHD Addict

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    Menus are 720P for all my boxes when I have it set for Native mode.
     
  8. kosherbacon

    kosherbacon New Member

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    So this is a TV issue? When I experienced this, I assumed that the TiVo itself created the static because it had to change its output resolution. I don't have different HDTVs to test this on, though. Makes sense, I guess.
     
  9. bkdtv

    bkdtv New Member

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    The menus are 720p, but they are converted to 1080i when you choose 1080i fixed.

    You should not see the resyncing in any fixed mode on the Tivo.

    Yes, the static is created by the TV. Some displays switch in 0.5s with no static, others switch in 4.0+s with static. It varies by make and model of TV.
     
  10. jfh3

    jfh3 Active Member

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    If it really bugs you, change the video output mode to something fixed and let the Tivo HD scale it. You will eliminate the "static", but then you will be relying on the scaling of the THD and not your TV.
     
  11. nikkicola11

    nikkicola11 New Member

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    Sep 24, 2007
    Ok...I have it set to "Native" since I have a Sony HD that supports all formats. What would be the downside to having it set to 1080i fixed? Does it make the stuff coming in lower appear bad?
     
  12. megazone

    megazone Hardcore TiVo Geek

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    All content is scaled to your display's resolution in the end. If you have a 1080p TV the question is - is the scaling done on the TV or the TiVo. The scaler in the TiVo is pretty good, so most people won't notice a difference. But if your TV has a really good scaler than lower resolution content may look better scaled by the TV than by the TiVo.

    Personally I didn't notice a real difference and I switched from Native to 1080i once the transitional flickers got to me.
     
  13. clcbmason

    clcbmason New Member

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    Sep 16, 2007
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    So you switched to 1080i fiixed? I have left it at native figuring the standard def would look lousy. The flicker makes my wife nuts. I have a 46" Bravia (1080P). Any suggestions??
     
  14. GoHokies!

    GoHokies! O2->CO2 Converter

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    Set it to 1080i fixed and forget it.

    Like MZ said, SD is getting scaled anyways, so you may as well let the Tivo do it and not have the hassle.
     
  15. lessd

    lessd Well-Known Member

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    V9.1 does give static audio noise not picture problem about 1/2 second between screens and I have it set on 1080i fixed, never happened on V8.3 on my TiVo series 3. I can live with it as it is but it should get fixed.
     
  16. Laserfan

    Laserfan Member

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    You and the OP need to switch-away from "Native" mode, which as has been described already causes the Tivo to switch its output according to the Menu, or the Station/broadcast.

    My Sony is a 1366x768, and while in theory you might think 720p would be the way to go, it has to scale EVERYTHING anyway to 768, and I've found after much testing that fixed 1080i into this set is the bee's knees.

    For your 1080p set too, go with 1080i fixed-out from the Tivo.
     
  17. knarf829

    knarf829 New Member

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    There are some menus that are still 480i, are there not? Like if you go into "Download TV Shows and Movies" and similar? Mine switches resolutions going into those.

    EDIT TO ADD: Just read more closely (duh). I'm on a Series3. Has this been updated (read: corrected) for TiVoHD?
     
  18. megazone

    megazone Hardcore TiVo Geek

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    Well, kinda, those are HME apps not part of the native menus and the official HME toolkit is still 480i. But there are ways to do HD in HME - as various 3rd party apps and TiVo's own HD Photos app have shown.
     
  19. snash22

    snash22 New Member

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    Oct 27, 2007
    I am fairly sure these "transitional flickers" are caused by the TiVo, not the TV.

    My TV is set to Native. I am using HDMI.

    During the transition to a channel with a different format , I can see program information for the channel I am changing to. The program information's size and location is changed, but it is still readable if you can read fast. In this distorted information panel I see the current format in the distorted information panel, and then the screen goes black, then I get the channel I switched to. When I press the info button, I see the correct format in the information panel.

    What seems to be happening is this; I am watching 1080i, I switch to a 480i channel. The TiVo sends the 480i channel to the TV with a switch indicating it is 1080i. The TV chokes on this. The TiVo then sends the 480i channel with the switch indicating it is 480i. The TV is now happy.

    So for that brief moment, TiVo is sending the wrong format switch, screwing up the TV.
     
  20. bkdtv

    bkdtv New Member

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    Jan 9, 2003
    DC Metro Area
    Any delay caused by the Tivo is only a fraction of a second. Maybe 1/5th of a second?

    We know this because some people with high-priced video processors can change from one format to another on their Tivo in about 0.5s. In contrast, some TVs require as long as six seconds to change resolutions.
     

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