From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.kapsi.fi ([217.30.184.167]:50648 "EHLO mail.kapsi.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752191Ab3ABASB (ORCPT ); Tue, 1 Jan 2013 19:18:01 -0500 Message-ID: <50E37C95.3020208@iki.fi> Date: Wed, 02 Jan 2013 02:17:25 +0200 From: Antti Palosaari MIME-Version: 1.0 To: Diorser CC: "linux-media@vger.kernel.org" Subject: Re: AverTV_A918R (af9035-af9033-tda18218) / patch proposal References: <50E36298.3040009@iki.fi> In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: 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/