TV channel search doesn't find cable channels (1 Viewer)


New Member
August 14, 2011
MediaPortal Version: 1.1.3
MediaPortal Skin: Standard Skin
Windows Version: WinXP 32. Bit SP3
CPU Type: Intel Pentium 4 2.4 Ghz
HDD: 40 GB
Memory: 1 GB
Video Card: Matrox
Video Card Driver:
Sound Card:
Sound Card AC3:
Sound Card Driver:
1. TV Card: WinTV PCI (Old)
1. TV Card Type: WinTV with 878 chip
1. TV Card Driver: Conexants BtPCI WDM Video Capture Version
MPEG2 Video Codec:
MPEG2 Audio Codec:
h.264 Video Codec:
Satelite/CableTV Provider: KabelDeutschland Germany / Cable

I can look the cable tv channels with K!TV without any issues. But MediaPortal is not able to find any cabel channel for me.
I'm trying it already for days without success. Last chance is to ask you in the Forum.

In some installations I got a "can't write Graph error" messages.
Currently I'm not getting any error message but he is not finding any tv channel.

Attached you can see the current log files after a fresh new installation and here is a part that I think can already tell you something about the problem:


2011-08-14 09:00:25.843750 [(4)]: Exception :confused:ystem.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
at DirectShowLib.IGraphBuilder.Connect(IPin ppinOut, IPin ppinIn)
at TvLibrary.Implementations.DVB.FilterGraphTools.ConnectFilter(IGraphBuilder graphBuilder, IPin pinSource, IBaseFilter destinationFilter, Int32& destinationPinIndex)
at TvLibrary.Implementations.Analog.Components.Capture.CreateAutomaticFilterInstance(Graph graph, ICaptureGraphBuilder2 capBuilder, IFilterGraph2 graphBuilder, Tuner tuner, Crossbar crossbar, TvAudio tvAudio)
at TvLibrary.Implementations.Analog.Components.Capture.CreateFilterInstance(Graph graph, ICaptureGraphBuilder2 capBuilder, IFilterGraph2 graphBuilder, Tuner tuner, Crossbar crossbar, TvAudio tvAudio)
at TvLibrary.Implementations.Analog.TvCardAnalog.BuildGraph()

2011-08-14 09:00:25.859375 [(4)]: Exception :confused:ystem.NullReferenceException: Object reference not set to an instance of an object.
at TvLibrary.Implementations.Analog.TvCardAnalog.Dispose()
at TvLibrary.Implementations.Analog.TvCardAnalog.BuildGraph()
at TvLibrary.Implementations.Analog.TvCardAnalog.Tune(Int32 subChannelId, IChannel channel)
at TvService.CardTuner.Tune(User& user, IChannel channel, Int32 idChannel)

2011-08-14 09:00:26.375000 [(4)]: Exception :confused:ystem.AccessViolationException: Attempted to read or write protected memory. This is often an indication that other memory is corrupt.
at System.Runtime.Remoting.RemotingServices.AllocateUninitializedObject(RuntimeType objectType)
at System.Runtime.Remoting.RemotingServices.AllocateUninitializedObject(Type objectType)
at System.Runtime.Remoting.Activation.ActivationServices.CreateInstance(Type serverType)
at System.Runtime.Remoting.Activation.ActivationServices.IsCurrentContextOK(Type serverType, Object[] props, Boolean bNewObj)
at TvLibrary.Implementations.Analog.TvCardAnalog.BuildGraph()


Would be great if somebody could get me the software running :) thx


Development Group
  • Team MediaPortal
  • September 1, 2008
    New Zealand New Zealand
    Country flag
    Hi and welcome davidsch! :)

    I'm sorry to have to give you bad news, but your tuner is not supported by TV Server. The reason is that your tuner requires a connection to your sound card for audio to work. Such tuners can't timeshift or record properly, and that is why we don't support them. You can see this on the supported cards page in our wiki -->here<--:

    In general the TV-Server supports
    3. some analog cards which use software encoding. The TV card must not require a connection to the "Line In" or "Microphone" input of the sound card to make the audio work.
    Sorry once again to give you this bad news. :sorry:


    Users Who Are Viewing This Thread (Users: 0, Guests: 1)

    OP Similar threads Forum Replies Date
    P Missing channels after rebuild (all on one MUX ?) General 2
    Ralph Holmes One TV channel is duff - all the others are OK General 6
    A UK Freeview channel changes Installation, configuration support 14
    framug [solved] TVguide : channel number. MediaPortal 1 Talk 7
    T Client / Server slow channel-to-channel change (zapping) General Support 1
    V [solved] FTA channels but reported as encrypted MediaPortal 1 Talk 7
    T Server / client channel logo location Installation, configuration support 6
    g0rsq UK Freesat not tunning BBC HD channels, and lots of other freesat channels missing. Newcomers Forum 4
    W [solved] MP suddenly Crashes when starting live TV on most channels and on recordings from the same channels General Support 20
    W [solved] MP suddenly Crashes when starting live TV on some channels and on some recordings Television (MyTV frontend and TV-Server) 1
    raffe [TV] Option for adding IPTV channels without checking Improvement Suggestions 0
    C Telenet analog-to-digital switch -- manually finding and inputting DVB-C channels in Mediaportal2 General 0
    vapourEyes Automatically Tune to Strongest Duplicate Channel Improvement Suggestions 106
    T [solved] Any idea where Channel 107 (DVB-T2) BBC News HD (and others!) have gone??? Installation, configuration support 12
    B [solved] tvguide.xml not importing australian channels Electronic Program Guide 10
    R [fixed] [MP2-819] MP2 Server crashes on ATSC OTA channel scan Submit: Bug Reports 33
    R [solved] All Channel 7 stations listed in guide as 1000 Newcomers Forum 4
    J Rename channel by name Television (MyTV frontend and TV-Server) 2
    P IPTV Channel Problem TV-Server 0
    T Freeview EPG-Anyone know what channel sends the guide data? Electronic Program Guide 10
    M Guide mapping schedules direct, tvguide, epg buddy How to get correct entry to the correct channel? Electronic Program Guide 0
    nominefi Problem scanning channels. General Support 0
    limpwhizkid 1.22.0 Stutter and or artifact problem when recording and watching the same live tv channel 1.22 2
    C Can the XmlTv Plugin handle 600+ channels? General 3
    C How do I see the broadcast channel decimal numbers in the guide? General 0
    Similar threads

    Top Bottom