From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.kapsi.fi ([217.30.184.167]:50967 "EHLO mail.kapsi.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751078AbaI0CCS (ORCPT ); Fri, 26 Sep 2014 22:02:18 -0400 Message-ID: <54261AA6.10800@iki.fi> Date: Sat, 27 Sep 2014 05:02:14 +0300 From: Antti Palosaari MIME-Version: 1.0 To: Hamish Moffatt , linux-media@vger.kernel.org Subject: Re: problem with second tuner on Leadtek DTV dongle dual References: <542406DE.10403@cloud.net.au> <5424627F.9010306@iki.fi> <54261797.7080509@cloud.net.au> In-Reply-To: <54261797.7080509@cloud.net.au> Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: On 09/27/2014 04:49 AM, Hamish Moffatt wrote: > On 26/09/14 04:44, Antti Palosaari wrote: >> Moikka >> Performance issues are fixed recently (at least I hope so), but it >> will took some time in order to get fixes in stable. Unfortunately I >> don't have any IT9135 BX (ver 2 chip) dual device to test like yours... >> >> Could you install that kernel tree: >> http://git.linuxtv.org/cgit.cgi/media_tree.git/log/?h=devel-3.17-rc6 >> and firmwares from there: >> http://palosaari.fi/linux/v4l-dvb/firmware/IT9135/ITE_3.25.0.0/ >> > > OK I have > http://git.linuxtv.org/cgit.cgi/media_tree.git/log/?h=devel-3.17-rc6 > running now (reporting itself as 3.17-rc5), with the 3.40.1.0 firmware > from your site. > > Both tuners work for all stations, except that the first tuning attempt > on each tuner simply doesn't lock. Doesn't seem to matter what I tune to. :/ Sounds like a something is not initialized in a correct order. I suspect it is it913x tuner driver. But without a hardware, I cannot do much for it. So let it be. Good to hear that it works that better, even first tune will fail. It is though annoying as you will need to close app and then try again. I suspect it needs "power on - sleep - power on" in order to init all properly. > > [Unplug & replug device] > > [11:44AM] hamish@quokka:~ $ tzap -a3 'ABC' > using '/dev/dvb/adapter3/frontend0' and '/dev/dvb/adapter3/demux0' > reading channels from file '/home/hamish/.tzap/channels.conf' > tuning to 226500000 Hz > video pid 0x0200, audio pid 0x028a > status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | > status 07 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | > status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | > status 07 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | > status 00 | signal ffff | snr 0032 | ber 00000000 | unc 00000000 | > status 07 | signal ffff | snr 0032 | ber 00000000 | unc 00000000 | > ^C > [11:44AM] hamish@quokka:~ $ tzap -a3 'ABC' > using '/dev/dvb/adapter3/frontend0' and '/dev/dvb/adapter3/demux0' > reading channels from file '/home/hamish/.tzap/channels.conf' > tuning to 226500000 Hz > video pid 0x0200, audio pid 0x028a > status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | > status 1f | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | > FE_HAS_LOCK > status 1f | signal ffff | snr 0122 | ber 00000000 | unc 00000000 | > FE_HAS_LOCK > status 1f | signal ffff | snr 0122 | ber 00000000 | unc 00000000 | > FE_HAS_LOCK > ^C > [11:44AM] hamish@quokka:~ $ tzap -a2 'ABC' > using '/dev/dvb/adapter2/frontend0' and '/dev/dvb/adapter2/demux0' > reading channels from file '/home/hamish/.tzap/channels.conf' > tuning to 226500000 Hz > video pid 0x0200, audio pid 0x028a > status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | > status 07 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | > status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | > status 07 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | > status 00 | signal ffff | snr 0032 | ber 00000000 | unc 00000000 | > status 07 | signal ffff | snr 0032 | ber 00000000 | unc 00000000 | > status 00 | signal ffff | snr 0032 | ber 00000000 | unc 00000000 | > status 07 | signal ffff | snr 0032 | ber 00000000 | unc 00000000 | > status 00 | signal ffff | snr 0028 | ber 00000000 | unc 00000000 | > status 07 | signal ffff | snr 0028 | ber 00000000 | unc 00000000 | > ^C > [11:45AM] hamish@quokka:~ $ tzap -a2 'ABC' > using '/dev/dvb/adapter2/frontend0' and '/dev/dvb/adapter2/demux0' > reading channels from file '/home/hamish/.tzap/channels.conf' > tuning to 226500000 Hz > video pid 0x0200, audio pid 0x028a > status 00 | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | > status 1f | signal ffff | snr 0000 | ber 00000000 | unc 00000000 | > FE_HAS_LOCK > status 1f | signal ffff | snr 0122 | ber 0009a140 | unc 00002685 | > FE_HAS_LOCK > ^C > > > I left it trying to tune for minutes, and occasionally it would get a > lock for one sample but then lose it again for the next. regards Antti -- http://palosaari.fi/