[mythtv-users] pcHDTV 3000: Questions from a MythTV newbie

Marc Tousignant drayson at net1plus.com
Fri Jul 22 06:14:50 EDT 2005


> -----Original Message-----
> From: mythtv-users-bounces at mythtv.org [mailto:mythtv-users-
> bounces at mythtv.org] On Behalf Of Brandon Rogers
> Sent: Thursday, July 21, 2005 11:47 PM
> To: Discussion about mythtv
> Subject: RE: [mythtv-users] pcHDTV 3000: Questions from a MythTV newbie
> 
> David,
>   Thanks for the reply.  I think my question was HOW
> to use the DVB drivers in Myth.  When I install the
> DVB drivers, several DVB device nodes appear, but when
> I tell Myth that I have a DVB card installed it tells
> me that it couldn't open the card.  I believe the
> reason for this is simply that Myth is looking for
> certain device nodes set up in a certain way and I
> have no idea how Myth is trying to read the card.  Any
> ideas?
> 
> Thanks,
> Brandon
> 
> --- David Maher <dm at netsol.com.au> wrote:
> 
> > I think you should use the DVB driver, don't worry
> > about testing it with
> > another program, if it's working myth will recognise
> > it when you select
> > the right card type in mythtvsetup and allow you to
> > scan for channels.
> > One tip though, make sure mythbackend is not running
> > when you set the
> > card up in mythtv, or else it won't be able to scan
> > for channels, the
> > card will be busy.
> >
> >
> > Regards
> >
> > David Maher
> >
> >
> >
> > -----Original Message-----
> > From: mythtv-users-bounces at mythtv.org
> > [mailto:mythtv-users-bounces at mythtv.org] On Behalf
> > Of David Sims
> > Sent: Friday, 22 July 2005 12:03 PM
> > To: Discussion about mythtv
> > Subject: Re: [mythtv-users] pcHDTV 3000: Questions
> > from a MythTV newbie
> >
> >
> > Take a look at this thread:
> >
> >
> http://www.gossamer-threads.com/lists/mythtv/users/135131?
> >
> > do=post_view_threaded
> >
> > Sounds like you might have the same problem.
> >
> > I think the long term answer is to figure out how to
> > use the dvb
> > drivers.  I'm still using the v4l drivers with my
> > hd-3000, because
> > that's what I got working first and haven't taken
> > the time to get the
> > dvb drivers working.  I've had difficulty like you
> > have with them, but
> > I honestly haven't spent much time on it.
> >
> > - David Sims
> >
> > On Jul 21, 2005, at 10:14 AM, blrogers at ieee.org
> > wrote:
> >
> > > All,
> > >    I've been scanning the archives of this list
> > for
> > > quite some time now and I had a few questions
> > > regarding the pcHDTV 3000 and it's compatibility
> > with
> > > Myth on Fedora Core 3.
> > >    I've compiled the drivers xine-hd (comes with
> > the
> > > pcHDTV card) and tested HDTV reception and NTSC
> > > reception.  Both work great.  I used xine to test
> > the
> > > HDTV (ATSC) signals and tvtime to test NTSC.  I am
> > > using the v4l drivers, not the DVB drivers for
> > reasons
> > > I'll discuss in a second.
> > >    When I load the v4l drivers (modprobe
> > cx88_atsc)
> > > the cx88xx drivers (NTSC) load as well as the ATSC
> > > drivers.  This creates several devices (duh),
> > namely /dev/vbi0,
> > > /dev/video0, and (I think) /dev/audio0. The ATSC
> > device is created as
> > > /dev/video1.  To get xine to recognize /dev/video1
> > as the ATSC driver,
> >
> > > I made a symbolic link to /dev/video1 called
> > /dev/dtv.
> > > This works great.  However, when I try to set up
> > Myth
> > > to read this card (I am using Myth 0.18.1), the
> > ATSC
> > > card is not recognized.  I can set up NTSC, but if
> > I
> > > erase all those card settings and try to set up an
> > > ATSC card, mythsetup just tells me that it
> > couldn't
> > > find inputs for the device (I know that they are
> > > there, though, because xine works great).  I have
> > > tried to every possible combination of Global TV
> > > settings (NTSC with standard TV, ATSC with HDTV,
> > NTSC
> > > with HDTV, etc), just on a whim that it might
> > work.
> > >   So why am I not using the DVB drivers?  When I
> > load
> > > the pcHDTV DVB drivers (modprobe cx88_dvb),
> > several
> > > devices are created (/dev/dvb0.dvr0,
> > > /dev/dvb0.frontend0, etc).  However, I don't know
> > how
> > > to use these devices and none of the programs from
> > > interpreting DVB seem to recognize or even look
> > for
> > > these devices.  Since, I could test and the v4l
> > > drivers and confirm that they work, I went that
> > route.
> > >   My system is built on the default FC3 load
> > (kernel
> > > 2.6.9), one pcHDTV card, nVidia FX 5200, 2.8 GHz
> > HT
> > > pentium 4, if that helps.  I guess my real
> > question is
> > > what MythTV is looking for to discover the v4l
> > ATSC
> > > driver and if I should be using DVB drivers, how
> > > should I configure them?  I installed Myth with
> > the
> > > RPMs available on atrpms (myth-suite package).
> > >   If anyone could clear up the confusion that I'm
> > > having, that would be great!  I would hate to have
> > to
> > > spend the time to rig up a pseudo-PVR replacement.
> > >
> > > Thanks!
> > > -B
> > > _______________________________________________
> > > mythtv-users mailing list
> > > mythtv-users at mythtv.org
> > >
> >
> http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
> >
> > > _______________________________________________
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> >
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> >
> 

I would recommend using the 2.6.12 kernel as the dvb drivers are in the
source. There is a guide on the pchdtv site that will tell you which modules
you need to select when compiling your kernel.



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