[mythtv-users] Bt87x strange problem

Colin McGregor colin.mc151 at hotmail.com
Mon Dec 6 15:26:49 UTC 2010

> horvathcsabalaszlo at gmail.com wrote:
> Hi,
> Sorry for disturbing, i have a strange problem on my TV recording box, and i'
> completely stuck with it...
> I have installed Mythbuntu 8.04, 9.10, and 10.10 for trying to wtach and
> record TV with MythTV, but none of them can handle my TV tuner card, wich is a
> BT879 card (i have tried it with a BT878, but the errors remained the same).
> (Card 1 is a Lifeview Flyvideo (879), Card 2 is an Avermedia TVphone 98
> (878)).
> So after installation, i detect the card with MythTV backend, it is OK, it
> recognizes the card. Then when i start to scan channels, i cannot use the
> "Scan channels" button in backend... It happens in every Mythbuntu version.
> (I have added the capture card, added an Input Connection, as the Myth manual
> says.)
> The card and bttv module must be OK, because it works fine with TVtime, VLC, or
> mplayer.

A possible lead for you, 5? years ago I played with an Avermedia TV98 card, which is BT879 based. A problem I encountered was that it would only get a handful of stations, all at the top end of the cable TV channel list. The problem turned out to be that this card was sold with more than one tuner module, the software could not auto-detect which module was installed, so the programs went with a default that turned out to be wrong for my version of this card. The solution turned out to be creating a file : /etc/modprobe.d/bttv.conf and explicitly telling the system what tuner I was using.

If this is your problem, well your first step will be some research. In my case I found out that there were three versions of the tuner for my card, then simple trial and error through the three tuners allowed me to find the right one.

Hope this helps.

Colin McGregor

> So if anybody can help me, i will give a big thx for it :)
> Cs.


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