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Thread: Tuner 'lost' when all in use

  1. #1
    Join Date
    Aug 2009
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    119

    Tuner 'lost' when all in use

    Hi Folks!

    Fresh install of Mythbuntu 9.10; Hauppauge HVR-1600 and HVR-2250, the latter using LowSky's instructions (thank you!!).

    Only have the digital portion of the HVR-1600 running; both digital tuner halves of the HVR-2250 work fine BUT won't put a display (video nor audio) if all three tuners are used concurrently. If the HVR-1600 and half of the HVR-2250 record concurrently there doesn't seem to be a problem.

    Additionally, the recordings on the HVR-2250 were not made (if all three tuners recording concurrently). The Recordings screen does list the programmes but gives a file not found type of messege. (If only do two concurrent recordings records properly.)

    (I've repeated the tests a couple of times and have the same results, so not an isolated incident.)

    I have not tested what happens if I try recording using both halves of the HVR-2250 but not the HVR-1600. Current configuration is Tuner #1 is the HVR1600 Digital, Tuner #4 is the HVR-2250-0 and Tuner #6 is the 2250-1.

    I looked at the Mythbuntu log and have next to no idea what I'm looking at(!). Looks like its posted at http://mythbuntu.pastebin.com/f1ff2d88e. Some notes and important-looking lines:

    I tested to see if the HVR-2250 tuners 'worked' (displayed programming) after the thee concurrent recordings test -- they did not. Did give me the show title, station channel, and "Signal 0% | BE 0 | (1___) No Lock".

    I then exited MythTV to the Desktop, then re-entered MythTV -- same problem with the HVR-2250 tuners.

    I exited MythTV, rebooted the system (clicked on the icon); all three tuners display Live TV now. However, as noted above, if I do three concurrent recordings I'll have the same problem again.


    Extracts from the Log. I may have the capitalization wrong.

    In /var/log/syslog:
    s5h1411_readreg: reading error (ret == -5)
    saa7164_cmd_send() no free sequences
    saa7164_api_i2c_read() error, ret(1) = 0xc
    (the log repeats these three lines over and over)

    In /var/log/mythtv/mythfrontend.log
    VideoOutputXv error: XvMC output requested, but is not supported by display
    XLib: extension "XVideo_MotionCompensation" missing on display ":0.0".
    /usr/lib/libXvMC.so.1: undefined symbol: XvMCCreateContext
    Error in my_thread_global_end(): 1 threads didn't exit

    (As I typed that I semi-realized the FrontEnd probably isn't the problem.)

    FWIW I am fairly certain this problem occurred with Mythbuntu v. 9.04 (same computer).

    TIA!

  2. #2
    Join Date
    Jan 2009
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    1

    Re: Tuner 'lost' when all in use

    I'm curious if you have found a solution to this problem yet. I'm getting the same errors you are finding in syslog, but I only have an HVR-2250. I can't isolate the conditions that create the error. In fact, the error seems to occur at times when neither HVR-2250 tuner is in use.

  3. #3
    Join Date
    Aug 2009
    Beans
    119

    Re: Tuner 'lost' when all in use

    Quote Originally Posted by dedrooster View Post
    I'm curious if you have found a solution to this problem yet. I'm getting the same errors you are finding in syslog, but I only have an HVR-2250. I can't isolate the conditions that create the error. In fact, the error seems to occur at times when neither HVR-2250 tuner is in use.
    Hi dedrooster, and welcome, since that appeared to be your first post.

    No, unfortunately haven't found a solution. I'm thinking (hoping) it's a quirk in the motherboard as no one else seems to be having the problem (except you and I <g>), plus I ordered a new mb. Reasonings: the same problem occurs with both versions of Mythbuntu; I added a second HVR-1600 (digital + analog) which would give me a total of four digital tuners and and now the HVR-2250's don't load at all. (All of the cards show up with the lspci command.)

  4. #4
    Join Date
    Mar 2006
    Beans
    56

    Re: Tuner 'lost' when all in use

    im also using the hvr-2250 tuner and am also having this problem. i have tried several ways to replicate it, but i cant. yesterday i was recording on both of the 2250 tuners and my pvr-150 then i switched to mythmusic and into the 3rd song the system locked up.

    other times its when im watching a recorded show and recording on the 2250, it will lock up.

  5. #5
    Join Date
    Dec 2009
    Beans
    1

    Re: Tuner 'lost' when all in use

    I too get this problem. After a recording from an HVR-2250 tuner I can no longer get a lock when trying to watch TV, If I exit the frontend and restart the backend all is well.

  6. #6
    Join Date
    Aug 2009
    Beans
    119

    Re: Tuner 'lost' when all in use

    Quote Originally Posted by honsch View Post
    I too get this problem. After a recording from an HVR-2250 tuner I can no longer get a lock when trying to watch TV, If I exit the frontend and restart the backend all is well.

    Hi Honsch!

    Welcome to Mythbuntu Forums! At least I know I'm not alone with this problem -- wonder if it's a quirk in the programming (and whose?). FWIW I'd be willing to help test out this problem -- right now getting the new system together. (Wonder who gets contacted for volunteering for this type of thing?)

    ...Sorry for delay in responding: low battery in the UPS, we had a storm, power flickered, power supply in this computer failed. Not all bad news: found out the case fan had seized and the dust bunnies were growing up!


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