[mythtv-users] DVB-T tzap versus mythtv 0.19

[Ben Kelly]

On Saturday 04 Mar 2006 09:04, Doug Scoular wrote:
> Hi All,
> A number of my colleagues and I have just upgraded
> our systems
> to mythtv 0.19.
>
> I'm running a gentoo system with a genkernel
2.6.15-gentoo-r5 kernel.
>
> I have a Hauppauge Nova-T DVB-T card as my primary
tuner and
> an AVerMedia AverTV DVB-T USB 2.0 (A800) external
tuner.
> While my colleagues all have Nova-T based systems.
>
> 0.18.1 changed channels and worked perfectly for the
Nova-T but
> I always had problems with using the A800 (although
tzap worked
> fine with both cards).
>
> Now that we've upgaded to 0.19 changing channels
takes significantly
> longer for the Nova-T, sometimes fails to get LOCK
and occasionally
> locks up the frontend too.
>
> Is anyone running mythtv 0.19 with a Nova-T and
getting similar
> speed channel changing compared with 0.18.1 ? None
of us are.
>
> Also, my A800 never gets LOCK at all and reports S/N
0.0dB and BE 65535
> but a signal of 99%... however it works perfectly
with tzap!?!!
>
> spug log # tzap -a 1 'NINE DIGITAL' -r
> using '/dev/dvb/adapter1/frontend0' and
'/dev/dvb/adapter1/demux0'
> reading channels from file
'/root/.tzap/channels.conf'
> tuning to 191625000 Hz
> video pid 0x0207, audio pid 0x02d0
> status 03 | signal ad31 | snr 0000 | ber 001fffff |
unc 0000ffff |
> status 1f | signal ad32 | snr 0000 | ber 00000000 |
unc 00000000 |
> FE_HAS_LOCK
> status 1f | signal 0000 | snr ffff | ber 00000000 |
unc 00000000 |
> FE_HAS_LOCK
> status 1f | signal 0000 | snr ffff | ber 00000000 |
unc 00000000 |
> FE_HAS_LOCK
>
> And yes, all channels were rescanned using mythtv
0.19. I
> also increased both the A800 tuning timeouts in
mythtv-setup
> by tenfold. I'm wondering if the fact the driver is
indicating
> that the signal is zero once tuned in the above. For
comparison
> here's the same output from tzap for the Nova-T
card:
>
> spug szap # tzap -a 0 'NINE DIGITAL' -r
> using '/dev/dvb/adapter0/frontend0' and
'/dev/dvb/adapter0/demux0'
> reading channels from file
'/root/.tzap/channels.conf'
> tuning to 191625000 Hz
> video pid 0x0207, audio pid 0x02d0
> status 00 | signal c4c4 | snr ffff | ber 0001fffe |
unc 00000000 |
> status 1f | signal c3c3 | snr fefe | ber 00000422 |
unc 00000000 |
> FE_HAS_LOCK
> status 1f | signal c3c3 | snr fefe | ber 00000700 |
unc 00000000 |
> FE_HAS_LOCK
> status 1f | signal c3c3 | snr fefe | ber 00000642 |
unc 00000000 |
> FE_HAS_LOCK
> status 1f | signal c4c4 | snr fcfc | ber 00000570 |
unc 00000000 |
> FE_HAS_LOCK
> status 1f | signal c4c4 | snr fefe | ber 000004dc |
unc 00000000 |
> FE_HAS_LOCK
>
> These figures look far more realistic compared to
the A800 output.
>
> Any thoughts much appreciated...
>
> Doug
>
> --
> "The big print giveth and the small print taketh
away." 

I'm seeing the same thing on Myth 19. When starting
LiveTV it takes about 6-10 secs to start, which is a
problem, but far worse is that that is that the card
(Nova-T DVB-T) fails to tune about 50% of the time.
Myth 18 worked perfectly.

If I tzap it, the card tunes in first time, every
time.

Quite often LiveTV will also lock up mythfrontend.

Any tips/tricks ?


	

	
		
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