From: Antti Palosaari <crope@iki.fi>
To: Diorser <diorser@gmx.fr>
Cc: "linux-media@vger.kernel.org" <linux-media@vger.kernel.org>
Subject: Re: AverTV_A918R (af9035-af9033-tda18218) / patch proposal
Date: Wed, 02 Jan 2013 02:17:25 +0200 [thread overview]
Message-ID: <50E37C95.3020208@iki.fi> (raw)
In-Reply-To: <op.wp9b661h4bfdfw@quantal>
On 01/02/2013 02:12 AM, Diorser wrote:
>> Does it show 100% even antenna is unplugged ?
>
> It seems in fact that signal indicator is not reliable.
> I have to sometimes reset dvb with:
>
> for I in dvb_usb_af9035 af9033 tda18218 dvb_usb_v2 dvb_core rc_core; do
> rmmod $I; done
> modprobe dvb-usb-af9035
>
> The antenna signal input is fine, this is at least the point I am sure.
>
>> You mean you see LOCK flag gained, then there is maybe error pid
>> filter timeouts ?
>
> Not sure of that. tzap test seems to show the opposite:
>
> tzap -r TEST
> using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0'
> reading channels from file '/home/test_r/.tzap/channels.conf'
> tuning to 586167000 Hz
> video pid 0x0200, audio pid 0x028a
> status 00 | signal 0000 | snr 0000 | ber 00000000 | unc 00000000 |
> status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 |
> status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 |
> status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 |
> status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 |
> status 00 | signal 0000 | snr 0000 | ber 00000000 | unc 00000000 |
> status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 |
> status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 |
> status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 |
> status 00 | signal 0000 | snr 0000 | ber 00000000 | unc 00000000 |
> status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 |
> status 00 | signal 0000 | snr 0000 | ber 00000000 | unc 00000000 |
> status 00 | signal 0000 | snr 0000 | ber 00000000 | unc 00000000 |
> status 00 | signal 0000 | snr 0000 | ber 00000000 | unc 00000000 |
This says it quite clearly, it does not work at all. I don't know why
you resists to remove antenna or unplug stick, but even you remove
antenna I am quite sure you will see similar results.
> I also took the kaffeine dvb files perfectly working with saa7134 card,
> but A918R card does not tune on any channel.
> Then, the lack of signal strength stability / front-end problem is may
> be the root cause.
> Thanks again for your time
Maybe there is some GPIO controlling antenna input or switching some other.
Antti
--
http://palosaari.fi/
next prev parent reply other threads:[~2013-01-02 0:18 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-01-01 21:40 AverTV_A918R (af9035-af9033-tda18218) / patch proposal Diorser
2013-01-01 22:26 ` Antti Palosaari
[not found] ` <op.wp88epxu4bfdfw@quantal>
2013-01-01 23:09 ` Diorser
2013-01-01 23:32 ` Antti Palosaari
2013-01-02 0:12 ` Diorser
2013-01-02 0:17 ` Antti Palosaari [this message]
2013-01-03 21:24 ` Diorser
2013-01-03 21:45 ` Antti Palosaari
2013-01-02 0:23 ` Diorser
2013-04-09 14:46 ` Diorser
2013-04-09 18:33 ` Antti Palosaari
2013-04-09 18:58 ` Diorser
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