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Thread: U6012A QAM Tuner in Windows 7 - Device as DVB-C instead of QAM

  1. #1
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    U6012A QAM Tuner in Windows 7 - Device as DVB-C instead of QAM

    Hello,

    Just started trying NPVR using Mygica U6012A USB TV Tuner on Windows 7 and XP for QAM channels.

    In Windows 7:
    The QAM device is seen as 'Microtune Dongle Digital QAM Tuner', but the type is listed as 'DVB-C' instead of QAM. I selected 256 QAM and tried to scan. It did not find any QAM channels (quite obvious I suppose...).

    In Windows XP:
    NPVR only found the ATSC 'HDTV Stick Digital Tuner' but not the QAM Tuner. I do have the HVR-1600 QAM tuner also on this PC and NPVR was able to find the HVR-1600 QAM tuner as QAM device.

    Thanks.

  2. #2
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    What is this device capable of? Analog+ATSC+QAM like most north american devices?

    View the Devices screen, then post the npvr.log and I'll take a look.

  3. #3
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    Hi Sub,

    Yes it is a US-based USB TV Tuner device (Analog+ATSC+QAM).

    I went to the 'Devices' screen and I was able to see the tuner appearing as 1 ATSC device and 1 DVB-C device (instead of QAM device). I was not able to locate any npvr.log file in the install directory. Is there some setting I need to enable for logging?

    Here are 2 sets of entries in gbpvr bda.ini for XP and Windows 7 that work:


    Windows XP:
    ---------------

    [Mygica U6012 HDTV Stick]
    TUNING_TYPE=ATSC
    FILTER_TUNER=HDTV Stick Digital Tuner
    FILTER_CAPTURE=HDTV Stick Digital Capture
    PIN_TUNER_IN=Input0
    PIN_TUNER_OUT=MPEG2 Transport
    PIN_CAPTURE_IN=MPEG2 Transport
    PIN_CAPTURE_OUT=MPEG2 Transport

    [Mygica U6012 HDTV Stick (QAM)]
    TUNING_TYPE=ATSC
    TUNING_SPECIAL=2
    FILTER_TUNER=HDTV Stick Digital Tuner
    FILTER_CAPTURE=HDTV Stick Digital Capture
    PIN_TUNER_IN=Input0
    PIN_TUNER_OUT=MPEG2 Transport
    PIN_CAPTURE_IN=MPEG2 Transport
    PIN_CAPTURE_OUT=MPEG2 Transport


    Windows 7
    -------------

    [Mygica U6012 HDTV Stick]
    TUNING_TYPE=ATSC
    FILTER_TUNER=Microtune Dongle Digital Tuner
    FILTER_CAPTURE=Microtune Dongle Digital Capture
    PIN_TUNER_IN=Input0
    PIN_TUNER_OUT=MPEG2 Transport
    PIN_CAPTURE_IN=MPEG2 Transport
    PIN_CAPTURE_OUT=MPEG2 Transport


    [Mygica U6012 HDTV Stick (QAM)]
    TUNING_TYPE=ATSC
    TUNING_SPECIAL=2
    FILTER_TUNER=Microtune Dongle Digital QAM Tuner
    FILTER_CAPTURE=Microtune Dongle Digital QAM Capture
    PIN_TUNER_IN=Input0
    PIN_TUNER_OUT=MPEG2 Transport
    PIN_CAPTURE_IN=MPEG2 Transport
    PIN_CAPTURE_OUT=MPEG2 Transport


    Let me know if this helps.

  4. #4
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    Ok, I am able to locate the npvr.log. Here is the info:

    2010-06-20 00:24:24.803 [DEBUG][1] About to detect digital tuners
    2010-06-20 00:24:24.803 [DEBUG][1] - 'Microtune Dongle Digital Tuner'
    2010-06-20 00:24:24.803 [DEBUG][1] - 'Microtune Dongle Digital QAM Tuner'
    2010-06-20 00:24:24.834 [DEBUG][1] About to check standards supported by 'Microtune Dongle Digital Tuner'
    2010-06-20 00:24:24.834 [DEBUG][1] Found IBDA_Topology
    2010-06-20 00:24:24.834 [DEBUG][1] - KSNODE_BDA_RF_TUNER
    2010-06-20 00:24:24.834 [DEBUG][1] - KSNODE_BDA_8VSB_DEMODULATOR
    2010-06-20 00:24:24.834 [DEBUG][1] Done
    2010-06-20 00:24:24.849 [DEBUG][1] About to check standards supported by 'Microtune Dongle Digital QAM Tuner'
    2010-06-20 00:24:24.849 [DEBUG][1] Found IBDA_Topology
    2010-06-20 00:24:24.849 [DEBUG][1] - KSNODE_BDA_RF_TUNER
    2010-06-20 00:24:24.849 [DEBUG][1] - KSNODE_BDA_QAM_DEMODULATOR
    2010-06-20 00:24:24.849 [DEBUG][1] Done


    DirectX 9
    Also, I have a problem trying to install DirectX version 9 in Windows 7. I believe Windows 7 has DirectX version 11. Is that OK? Or I have to install DirectX version 9 for npvr to work? As I am seeing this log:

    2010-06-20 00:24:01.434 [ERROR][1] Error initialising Direct3D: SlimDX.Direct3D9.Direct3DX9NotFoundException: Direct3DX 9 was not found. Please install the latest DirectX end-user redistributable package from Microsoft. ---> System.Runtime.InteropServices.SEHException: External component has thrown an exception.
    at D3DXCheckVersion(UInt32 , UInt32 )
    at SlimDX.Direct3D9.Direct3D..ctor()
    --- End of inner exception stack trace ---
    at SlimDX.Direct3D9.Direct3D..ctor()
    at NextPVR.Utility.Direct3DHelper..ctor(IntPtr windowHandle, Int32 width, Int32 height)
    at NextPVR.ControllerForm.Form1_Load(Object sender, EventArgs e)
    2010-06-20 00:24:01.434 [INFO][1] Continuing with Direct3D disabled

    Thanks.

  5. #5
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    U6012A QAM Tuner in Windows 7 - Device as DVB-C instead of QAM

    I have attached a screen shot and the npvr.log. Let me know if I can perhaps add additional entries in Digital Devices.xml to make it work w/ this device--thanks.

  6. #6
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    I've made a change for the next release that should fix this QAM detection. I cant release it as a patch, but there will be another release in a day or so that'll include this functionality.

  7. #7
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    Thx Sub. I can't wait to download the new release.

    By the way, two other questions:

    1. EPG
    I wonder how to set the EPG data location for XMLTV for *all* channels. In gbpvr I can set the EPG source location for XMLTV but I cannot seem to be able to find a way to enter the directory for the XMLTV xml file in npvr. I've found out I can select a channel, and then provide the XMLTV xml file. But this is for one channel only. I don't think I'd want to enter that same directory for every single channel.

    Or did I miss some steps?



    2. Audio codec - default is 'Disabled'
    After install, I noticed that the default values for all the audio decoder selections were 'disabled.' So initially there was no audio and I had to go back to set up to manually select an audio decoder.

    Can there be a 'System default' for the audio decoder selections so no one would be misled in thinking something is not working when hearing no audio in Live TV the first time?

    Thanks.

  8. #8
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    Hi Sub,

    I wonder if the new version 1.5.21 supports U6012A yet. I tried installing the new version but in Windows XP the QAM/Analog device do not show up at all. It only shows the 'ATSC HDTV Stick Digital Tuner' device (note I have both the U6012A and the HVR-1600 on this PC). I haven't tried Windows 7 yet.

  9. #9
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    I had hoped this version would work with the filters mentioned in your logs above. Its possible the XP filter names are not the same as the Win7 ones above though.

    Either way, visit the Devices screen, then post the npvr.log and I'll take a look.

  10. #10
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    Sub,

    Yes the filter name for this device in XP is different than the name in WIndows 7.

    Here is the log info you're looking for (Windows XP):


    2010-06-25 09:23:58.281 [DEBUG][1] About to detect digital tuners
    2010-06-25 09:23:58.296 [DEBUG][1] - 'Hauppauge WinTV 418 BDA Tuner'
    2010-06-25 09:23:58.296 [DEBUG][1] - 'HDTV Stick Digital Tuner'

    2010-06-25 09:23:58.656 [DEBUG][1] About to check standards supported by 'Hauppauge WinTV 418 BDA Tuner'
    2010-06-25 09:23:58.656 [DEBUG][1] Found IBDA_Topology
    2010-06-25 09:23:58.656 [DEBUG][1] - KSNODE_BDA_RF_TUNER
    2010-06-25 09:23:58.656 [DEBUG][1] - KSNODE_BDA_8VSB_DEMODULATOR
    2010-06-25 09:23:58.656 [DEBUG][1] Done

    2010-06-25 09:23:58.687 [DEBUG][1] About to check standards supported by 'HDTV Stick Digital Tuner' <---- U6012A Tuner
    2010-06-25 09:23:58.687 [DEBUG][1] Found IBDA_Topology
    2010-06-25 09:23:58.687 [DEBUG][1] - KSNODE_BDA_RF_TUNER
    2010-06-25 09:23:58.687 [DEBUG][1] - KSNODE_BDA_8VSB_DEMODULATOR

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