From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mout.gmx.net ([212.227.15.18]:49786 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752598Ab3G0S6H (ORCPT ); Sat, 27 Jul 2013 14:58:07 -0400 Received: from [192.168.1.101] ([146.52.53.248]) by mail.gmx.com (mrgmx103) with ESMTPSA (Nemesis) id 0LufbI-1U3nh63koa-00zkd3 for ; Sat, 27 Jul 2013 20:58:05 +0200 Message-ID: <51F4183C.3000505@gmx.net> Date: Sat, 27 Jul 2013 20:58:04 +0200 From: Jan Taegert MIME-Version: 1.0 To: Antti Palosaari CC: linux-media@vger.kernel.org, thomas.mair86@googlemail.com Subject: Re: PROBLEM: dvb-usb-rtl28xxu and Terratec Cinergy TStickRC (rev3) - no signal on some frequencies References: <51E927EC.5030701@gmx.net> <51E92A78.50706@iki.fi> <51E974DB.7010609@gmx.net> <51ED9F8F.10206@iki.fi> <51EFDF55.90500@iki.fi> In-Reply-To: <51EFDF55.90500@iki.fi> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: Am 24.07.2013 16:06, schrieb Antti Palosaari: > Could you test attached patch? > > It enhances reception a little bit, you should be able to receive more > weak signals. > > I was able to made test setup against modulator. Modulator + attenuator > + attenuator + TV-stick, where I got picture using Windows driver at > signal level -29dBm whilst on Linux -26.5dBm was needed. With that patch > Linux driver started performing same as Windows. > > regards > Antti > Hello, unfortunately your patch doesn't bring any change: I rebuild the kernel with it but the driver still gives no signal on the two higher frequencies. For safety I tried the channel.conf with windows and vlc and everything worked as it should. Thanks, jan # kernel 3.8.0-26-patched1 - output of: tzap -c channels.conf -t 10 MDR using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' tuning to 538000000 Hz video pid 0x0611, audio pid 0x0612 status 00 | signal 0000 | snr 0000 | ber 0000ffff | unc b7768b48 | status 1f | signal bfa0 | snr 0102 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal bfa0 | snr 0104 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal bfa0 | snr 0102 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal bfa0 | snr 00fb | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal bfa0 | snr 00fd | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal bfa0 | snr 0103 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal bfa0 | snr 00ff | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal bfa0 | snr 00f9 | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal bfa0 | snr 00fa | ber 00000000 | unc 00000000 | FE_HAS_LOCK status 1f | signal bfa0 | snr 00f7 | ber 00000000 | unc 00000000 | FE_HAS_LOCK reading channels from file 'channels.conf' # kernel 3.8.0-26-patched1 - output of: 'dvbsnoop -s feinfo' while watching MDR [shortened] Current parameters: Frequency: 538000.000 kHz Inversion: OFF Bandwidth: 8 MHz Stream code rate (hi prio): FEC 2/3 Stream code rate (lo prio): FEC 1/2 Modulation: QAM 64 Transmission mode: 8k mode Guard interval: 1/4 Hierarchy: none # kernel 3.8.0-26-patched1 - output of: tzap -c channels.conf -t 10 ZDF using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' tuning to 594000000 Hz video pid 0x0221, audio pid 0x0222 status 00 | signal 0000 | snr 0000 | ber 0000ffff | unc b7718b48 | status 00 | signal bfca | snr 0000 | ber 0000ffff | unc 00000000 | status 00 | signal bfca | snr 0000 | ber 0000ffff | unc 00000000 | status 00 | signal bfca | snr 0000 | ber 0000ffff | unc 00000000 | status 00 | signal bfca | snr 0000 | ber 0000ffff | unc 00000000 | status 00 | signal bfca | snr 0000 | ber 0000ffff | unc 00000000 | status 00 | signal bfca | snr 0000 | ber 0000ffff | unc 00000000 | status 00 | signal bfca | snr 0000 | ber 0000ffff | unc 00000000 | status 00 | signal bfca | snr 0000 | ber 0000ffff | unc 00000000 | status 00 | signal bfca | snr 0000 | ber 0000ffff | unc 00000000 | reading channels from file 'channels.conf' # kernel 3.8.0-26-patched1 - output of: 'dvbsnoop -s feinfo' while watching ZDF [shortened] Current parameters: Frequency: 594000.000 kHz Inversion: AUTO Bandwidth: 8 MHz Stream code rate (hi prio): FEC 1/2 Stream code rate (lo prio): FEC 1/2 Modulation: QPSK Transmission mode: 2k mode Guard interval: 1/32 Hierarchy: none # kernel 3.8.0-26-patched1 - output of: tzap -c channels.conf -t 10 ARD using '/dev/dvb/adapter0/frontend0' and '/dev/dvb/adapter0/demux0' tuning to 618000000 Hz video pid 0x0601, audio pid 0x0602 status 00 | signal 0000 | snr 0000 | ber 0000ffff | unc b7767b48 | status 00 | signal bf93 | snr 0000 | ber 0000ffff | unc 00000000 | status 00 | signal bf93 | snr 0000 | ber 0000ffff | unc 00000000 | status 00 | signal bf93 | snr 0000 | ber 0000ffff | unc 00000000 | status 00 | signal bf93 | snr 0000 | ber 0000ffff | unc 00000000 | status 00 | signal bf93 | snr 0000 | ber 0000ffff | unc 00000000 | status 00 | signal bf93 | snr 007f | ber 00004ca0 | unc 00000000 | status 00 | signal bf93 | snr 0000 | ber 0000ffff | unc 00000000 | status 00 | signal bf93 | snr 0000 | ber 0000ffff | unc 00000000 | status 00 | signal bf93 | snr 0000 | ber 0000ffff | unc 00000000 | reading channels from file 'channels.conf' # kernel 3.8.0-26-patched1 - output of: 'dvbsnoop -s feinfo' while watching ARD [shortened] Current parameters: Frequency: 618000.000 kHz Inversion: AUTO Bandwidth: 8 MHz Stream code rate (hi prio): FEC 1/2 Stream code rate (lo prio): FEC 1/2 Modulation: QPSK Transmission mode: 2k mode Guard interval: 1/32 Hierarchy: none