From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail.kapsi.fi ([217.30.184.167]:37216 "EHLO mail.kapsi.fi" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752636Ab3G2Tdf (ORCPT ); Mon, 29 Jul 2013 15:33:35 -0400 Message-ID: <51F6C364.105@iki.fi> Date: Mon, 29 Jul 2013 22:32:52 +0300 From: Antti Palosaari MIME-Version: 1.0 To: Torsten Seyffarth CC: Jan Taegert , 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> <51F56476.1090203@gmx.de> In-Reply-To: <51F56476.1090203@gmx.de> Content-Type: text/plain; charset=ISO-8859-15; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: Hello I don't want to read any random logs. It is just like looking for a needle in a haystack. Waste of time. I wrote a blog post and published my rtl2832u reverse-engineering/hacking scripts. Try to follow those: http://blog.palosaari.fi/2013/07/generating-rtl2832u-driver-code.html regards Antti On 07/28/2013 09:35 PM, Torsten Seyffarth wrote: > Hello Antti, > > Unfortunately the patch doesn't work for me either. Would it help you if > I send you an usb sniff with wireshark of an program search run with > kaffeine (27 MB)? > > regards > Torsten > > > 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 >> >> On 07/23/2013 12:09 AM, Antti Palosaari wrote: >>> On 07/19/2013 08:18 PM, Jan Taegert wrote: >>>> Hello, >>>> >>>> when the culprit is the e4000 driver but the old driver from >>>> https://github.com/valtri/DVB-Realtek-RTL2832U-2.2.2-10tuner-mod_kernel-3.0.0 >>>> >>>> >>>> worked for me, then must be somewhere there in the driver sources a >>>> solution for the signal issues. >>>> >>>> Does it make sense to look for a particular string in the sources? I >>>> don't have any clue of coding but perhaps I can be helpful in this way. >>> >>> Feel free to look. Those are different drivers and you cannot compare >>> easily. For my experience you will need huge amount of time and much >>> luck with that approach. >>> >>> As I said, the easiest solution is just to took sniffs and copy&paste >>> generated code until it starts working. >>> >>> regards >>> Antti >>> >>>> >>>> There are >>>> - tuner_e4000.c >>>> - nim_rtl2832_e4000.c >>>> >>>> Thanks, >>>> Jan. >>>> >>>> >>>> >>>> Am 19.07.2013 14:00, schrieb Antti Palosaari: >>>>> Hello >>>>> It is e4000 driver problem. Someone should take the look what there is >>>>> wrong. Someone sent non-working stick for me, but I wasn't able to >>>>> reproduce issue. I used modulator to generate signal with just same >>>>> parameters he said non-working, but it worked for me. It looks like >>>>> e4000 driver does not perform as well as it should. >>>>> >>>>> Maybe I should take Windows XP and Linux, use modulator to find out >>>>> signal condition where Windows works but Linux not, took sniffs and >>>>> compare registers... But I am busy and help is more than welcome. >>>>> >>>>> regards >>>>> Antti >>>> >>> >>> >> >> > -- http://palosaari.fi/