[mythtv-users] Re: Error tuning. Cant get PMT's (MythTV)

[Forest Lynn]

Suddenly I can receive sub-channel 5 now (after chaning the serviceid
to 5). Don't know why, maybe the station shut off the sub-channel 5
previously?

Sorry for replying to myself so frequently. Just want to give a true
description of the problem  and the progress so others can benefit, at
least not to mislead anyone.

Warren

On Tue, 8 Mar 2005 21:55:32 -0500, Forest Lynn <forlynn at gmail.com> wrote:
> Update on the problem:
> 
> In the mythconverg I found that the serviceid and atscsrcid are the
> same for all the sub-channels except the troubled one (sub-channel 5).
> For that sub-channel, the atscsrcid is 5, but the serviceid is 0. I
> manually changed the serviceid to 5, now from the backend output I can
> see "DVB#0 Successfully tuned to channel 585.", however, the backend
> won't be able to read any data from the card when I try to watch TV on
> that channel. The backend prints "Couldn't read data from the capture
> card in 15 secondes".
> 
> Hope this will help people fix things.
> 
> Warren
> 
> On Sat, 5 Mar 2005 22:31:55 -0500, Forest Lynn <forlynn at gmail.com> wrote:
> > Hi,
> >
> > I had the same problem.
> >
> > I just upgraded to mythtv 0.17, kernel 2.6.11 and air2pc (replaced the
> > HD-3000 for alleged better reception). The channel scan in mythtv
> > setup found 5 subchannels for a ATSC channel (PBS) with strong signal,
> > and I know all of them exists in the air since I could receive all of
> > them in mythtv 0.16 using HD-3000 (V4L driver), but now I can never
> > tune to subchannel 5 due to this "Timeout Getting PMT" issue. All
> > other 4 subchannels work fine.
> >
> > I did not try the "azap" the "dtvscan" since I don't know how to
> > create my own frequency/channel table (the script did not work for
> > me), so I am not sure whether this is a driver problem or mythtv
> > problem.
> >
> > Really hope somebody can shed some light on this issue because most of
> > the time that missing channel is the only channel I care, and is the
> > only channel that carries HD-signal in the five subchannels.
> >
> > Thanks in advance for any suggestions/fixes.
> >
> > Warren
> >
> > > Date: Sun, 27 Feb 2005 12:22:33 +1100
> > > From: MythTV <greg at wc.net.au>
> > > Subject: [mythtv-users] Error tuning. Cant get PMT's
> > > To: mythtv-users at mythtv.org
> > > Message-ID: <1109467353.11478.4.camel at wctv>
> > > Content-Type: text/plain
> > >
> > > Hi all,
> > >
> > > Been at this MythTV thing for a while now, and am starting to make
> > > headway, however am stuck getting an error during channel tuning
> > > (despite being able to tzap, and dvbscan manually fine):
> > >
> > > Starting up as the master server.
> > > 2005-02-27 11:52:41.249 DVB#0 DVB SI Table Parser Started
> > > 2005-02-27 11:52:41.250 DVB#0 Using DVB card 0, with frontend Philips
> > > TDA10045H DVB-T.
> > > 2005-02-27 11:52:41.252 DVB#0 DVB Signal Monitor Starting
> > > 2005-02-27 11:52:42.331 DVB#0 DVB signal c5c5 | snr 1515 | ber 1fffe |
> > > unc 0
> > > 2005-02-27 11:52:43.470 DVB#0 DVB signal c5c5 | snr cece | ber 1fffe |
> > > unc 0
> > > 2005-02-27 11:52:44.502 DVB#0 DVB signal c5c5 | snr 3f3f | ber 1fffe |
> > > unc 0
> > > 2005-02-27 11:52:45.518 DVB#0 DVB signal c5c5 | snr 2b2b | ber 0 | unc 0
> > > 2005-02-27 11:52:46.563 DVB#0 DVB signal c5c5 | snr d3d3 | ber 0 | unc 0
> > > 2005-02-27 11:52:46.954 DVB#0 Signal Locked
> > > 2005-02-27 11:52:47.186 DVB#0 Status: LOCK.
> > > 2005-02-27 11:52:47.187 DVB#0 Multiplex Locked
> > > 2005-02-27 11:52:53.207 DVB#0 Timeout Getting PMT
> > > 2005-02-27 11:52:53.207 DVB#0 ERROR - Tuning for channel #3 failed.
> > > 2005-02-27 11:52:53.281 mythbackend version:
> > > 0.17.20050130-1www.mythtv.org
> > >
> > > Can anyone offer any advice for how I might resolve this issue?
> > >
> > > As can be seen from the 'scan' output below (which was run during
> > > mythbackend startup just to be sure it was locking properly:
> > >
> > > [root at wctv scan]# ./dvbscan -c
> > > using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
> > > 0x0000 0x093e: pmt_pid 0x010a PRIME -- PRIME Newcastle (running)
> > > 0x0000 0x096a: pmt_pid 0x01cc PRIME -- PRIME View 1 (running)
> > > 0x0000 0x096b: pmt_pid 0x01cd PRIME -- PRIME View 2 (running)
> > > dumping lists (3 services)
> > > PRIME Newcastle          (0x093e) 01: PCR == V   V 0x0a64A 0x0a65 (eng)
> > > TT 0x0a69
> > > PRIME View 1             (0x096a) 01: PCR == V   V 0x0a64A 0x0a65
> > > PRIME View 2             (0x096b) 01: PCR == V   V 0x0a64A 0x0a65
> > > Done.
> > >
> > > Cheers,
> > > Greg.
> > >
> >
>