TiVo HD - All Video Vanishes

Discussion in 'TiVo Series3 HDTV DVRs' started by tt881, Sep 12, 2007.

  1. hartebeest

    hartebeest New Member

    1
    0
    Sep 17, 2007

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    I've just had the same problem for the first time.

    TiVoHD with no mods, installed about 2 months, CC installed about 6 weeks ago
    9.2a-01-2-652
    multicast CC
    component
    native
    Comcast cable (in Arlington, VA)

    I initially had the ESPNHD/ESPN2HD problem about a week ago - ESPNHD worked, ESPN2HD was black, but all other channels that I tried were working. Later, ESPN2HD was working again. Then several days later, I noticed other HD channels missing, but non-HD still looked fine. Then today, I lost all non-HD channels and the only channels that worked were the local HD channels. I called Comcast and while I was on the phone I was going through the CC diagnostics menus and got the black background behind the menus and then all channels were gone. I then rebooted and after the "few more minutes" screen came up, it froze. Stayed there for almost 40 minutes. I unplugged the box and after it rebooted everything works.

    When I was in the diagnostic menus, both cards had 100 for signal strength and appeared to be tuning properly. SNR was about 36dB for both. But when I tried to test channels, I got "No Channels Available."

    Since my problem appeared to occur in phases over about a week, I can't remember if there was a common denominator to the occurrence of problems (e.g., using menus, live TV button, network connection etc. as others have reported).
     
  2. steinercat

    steinercat New Member

    108
    0
    Nov 16, 2007
    I've experienced the sqame problem on an unmodified THD.

    Philips 1.3a HDMI cable.

    the black screen freaked me out as I just got this thing hooked up last Friday.

    Could it be the quality/type of the HDMI cable? I doubt that as the Philips HDMi cable is pretty darn good.
     
  3. pjhartman

    pjhartman excitable boy

    160
    0
    Jan 21, 2002
    Omaha, NE
    Folks not using HDMI have also experienced the black screen problem.
     
  4. uforia

    uforia Member

    33
    0
    Jul 29, 2004
    Houston, TX
    I had this issue with my original box and had it replaced by Tivo a few weeks ago. I have not seen this issue with the new box at all, although I've not purposely tried to make the issue reoccur. I have gone in and looked at system info, diagnostics, forced some updates, and have copied shows via MRV and have not had the problem again.

    I was very skeptical that the new box would not have the same problem. Since I had both the new one and bad one at the same time while doing the swap, I popped the hoods on both and tried to see a if there was any difference. There were actually 2-3 chips that had later version numbers on them. None were obviously an MPEG decoder or anything that'd lead me to think it could fix the issue, but I've not had the issue occur again.

    So, if Tivo wants to replace the box, I say let them. Just hopefully you can copy your shows off to another Tivo or PC so you don't lose them. We cannot, in any way, say they've fixed the problem on newer boxes, but it may just be the luck of the draw.
     
  5. ajcadoo

    ajcadoo New Member

    10
    0
    Nov 11, 2007

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    so i got a tivo hd last week and plugged it in to my cable. i was only able to recieve the first 100 channels because they are not digital. i find out that it is only possible to watch digital channels with two S-CARDS or one M-CARD. a cox installer came to my house today to install the multistream card and after a couple of problems he finally got it to work. He then tests the channels, but every single one is BLACK! he tells me, "if there are no channels in the next couple hours, call tivo." so i do call tivo and they tell me, "have your cable provider to 'reactivate' the card." so i call back my installer and he says, "nope, thats not a problem. the card has already been activated and it is ready!" my installer suggests to get a new box. do i need to? are there any ways to fix it? HELP PLEASE! this box, by the way, was purchased brand new from amazon.com.
     
  6. expletive

    expletive New Member

    3
    0
    Nov 18, 2007
    Same problem for me, brand new box from amazon with 2 cablecards and latest software. Using component cables. For me i can reproduce it with some regularity by going into the setup menus and then trying to return to video. This is definitely not an HDMI issue unless, as some suggest, HDMI is looking for a handshake when one is not necessary. I get all the menus but no video playback or menu backgrounds, just grey (which is what my letterbox color is set to). Very annoying. I know this issue is slightly different than those with absolutely NO video but they do seem to be related.

    FWIW, my video output setting is 1080i Hybrid.
     
  7. Marc421

    Marc421 New Member

    17
    0
    Oct 14, 2002
    Norwalk, CT
    Same problem. Brand new TiVo from Amazon this week. Two cable cards installed yesterday and twice now, black screen.
    Running with HDMI out. 1080i fixed. Screen goes black menus stay, no live TV with menus.
     
  8. AZrob

    AZrob Member

    309
    12
    Mar 31, 2002
    Phoenix, AZ
    I had the blackout menu again tonight, a week since the last time. Of note this time: I have been trying to get TTCB to work this week, with very little success. All day I tried to get it to work, and then finally a transfer successfully started. But when I actually tried to go to the screen to see the show that was being transferred to Tivo - bam, got the black screen. So maybe there is something to this idea that increased network traffic and/or decoding of a show being transferred is correlated with this issue.

    Has anyone had this problem while in Native format mode? That was suggested to me by Tivo this week, but I never got around to switching to it.

    Rob
     
  9. wokNroll

    wokNroll New Member

    5
    0
    Nov 19, 2007
    I experienced this same problem with my new (unmodified) Tivo HD. No cablecards yet. I am using 1080i fixed output via HDMI. It has only happened once so far and a restart of the Tivo box fixed the problem.
     
  10. lessd

    lessd Well-Known Member

    7,963
    94
    Jan 23, 2005
    CT
    This is a known problem, it does not depend on anything you the owner does as it will happen when using the composite outputs also. After it happens a soft re-boot will fix the problem and for the 15 units my friends and I own it does not happen again (yet), again do a soft re-boot don't unplug the TiVo. I do hope TiVo will fix this problem.
     
  11. Marc421

    Marc421 New Member

    17
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    Oct 14, 2002
    Norwalk, CT
    Sorry, but it absolutely happens again after a soft reboot as documented in 6 pages of posts here and my own experience. You and your friends are very lucky.

    I only hope it is a temporary software issue. Seems to happen when I am playing around in system settings or accessing photos/music from my macs.
     
  12. CrispyCritter

    CrispyCritter Purple Ribbon Wearer

    3,653
    2
    Feb 28, 2001
    North...
    I disagree. That's only true if you believe that there is only one cause for the problem. There's absolutely no evidence for that belief. I certainly believe that for you (and many others) it will happen again after a soft reboot. But that is not true for everybody.
     
  13. TiVo Troll

    TiVo Troll Registered Troll

    1,164
    0
    Mar 22, 2006
    It is likely a s/w related glitch or bug.

    I experienced the HDTiVo blankscreen problem on two occasions, first right after initial running Guided Setup. There was no pix on analog channels but then they started coming in intermittantly. At first I thought it was caused by a bad a/d encoder, but a soft reboot fixed it.

    Then, a few weeks later, right after installing an 'M' CableCARD (and then rerunning Guided Setup) the same thing happened. Again a soft reboot fixed it. It hasn't recurred.
     
  14. mpmclaugh33

    mpmclaugh33 New Member

    18
    0
    Dec 30, 2004
    I use Native format and its happened to me 3 times.
     
  15. Marc421

    Marc421 New Member

    17
    0
    Oct 14, 2002
    Norwalk, CT
    So for some it only happens once and a soft reboot fixes the problem forever?

    And to be clear I was responding to Lessd's assertion "After it happens a soft re-boot will fix the problem".
     
  16. TiVo Troll

    TiVo Troll Registered Troll

    1,164
    0
    Mar 22, 2006
    I use two outputs simultaneously, HDMI and Component (to a DVD recorder), and blank screens appeared on both, both times it happened.

    Since my HDTiVo was brand new the first time it experienced the blankscreen issue, even though a soft reboot 'fixed' the problem, I called TiVo Tech Support the very next day to initiate a Case Number, to protect my warrantee rights in case blankscreen became a sleeper issue.
     
  17. lessd

    lessd Well-Known Member

    7,963
    94
    Jan 23, 2005
    CT
    Forever is a long time, I have seen the problem on about 6 of the 15 units I helped friends install and when the video goes it goes from ALL outputs as i tried them all I also tried changing resolution to every one TiVo had, still no video, with a soft re-boot the problem went away for good as of now for the 15 units i know about (I now do a one soft re-boot on HD-TiVos that don't show the problem). The problem could come up again tomorrow or 5 years from now, I can't answer that question but TiVo should. I had one fail in the first guided setup but I completed the setup (even the start-up video would not play, only a blank screen for that time). Again a soft re-boot fixed the problem. My sample of HD-TiVos is small compared to this board but large compared to any one person on this board. (anyone need a 160Gb SATA new Hard Drive as i have about 15 of them)
    Don't get me wrong, this is a problem TiVo should be addressing, they know about it and i hope it can be fixed by software. V9.2a does not fix the problem.
     
  18. AZrob

    AZrob Member

    309
    12
    Mar 31, 2002
    Phoenix, AZ
    Thank you, Les, for your helpful observations, since none of us has access to a larger sample of Tivo's. If you do start to hear of repeat occurrences I'd appreciate knowing about them...I'm talking to a couple of 2nd Tier techs at Tivo, and they can use all the data on this issue we can give them. It's obviously not such a glaring problem that it has risen to the top of their list yet, but the more we report it, the more likely it will receive proper attention.

    Rob
     
  19. Mars Rocket

    Mars Rocket Loosely wound

    10,402
    5
    Mar 24, 2000
    Sinnoh region
    I've only seen this problem twice: once on 10/19, when I was installing the Cable Cards, and once more on 10/22 while browsing through the menus. I haven't seen it since then. I have repeated Guided Setup once in the interim to add OTA channels, and I think the unit has been rebooted once or twice for other reasons since then (drive upgrade).

    So now I'm at the 4+ weeks mark with no black screens.
     
  20. Isprex

    Isprex New Member

    1
    0
    Jul 28, 2002
    Illinois
    This has happened to me on multiple occasions and I've only had the unit for a few days. Hope they come up with a fix soon.
     

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