From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-in-14.arcor-online.net ([151.189.21.54]:40875 "EHLO mail-in-14.arcor-online.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752979Ab0C2UzJ (ORCPT ); Mon, 29 Mar 2010 16:55:09 -0400 Subject: Re: Kworld Plus TV Hybrid PCI (DVB-T 210SE) From: hermann pitton To: 0123peter@gmail.com Cc: linux-media@vger.kernel.org In-Reply-To: <0uh687-4c1.ln1@psd.motzarella.org> References: <4B94CF9B.3060000@gmail.com> <1268777563.5120.57.camel@pc07.localdom.local> <0h2e77-gjl.ln1@psd.motzarella.org> <1269298611.5158.20.camel@pc07.localdom.local> <0uh687-4c1.ln1@psd.motzarella.org> Content-Type: text/plain Date: Mon, 29 Mar 2010 22:52:13 +0200 Message-Id: <1269895933.3176.12.camel@pc07.localdom.local> Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: Hi Peter, Am Montag, den 29.03.2010, 23:10 +1100 schrieb 0123peter@gmail.com: > > Hi Hermann, > > I've been "fixing" my PC to the state that it stopped working. > Hence the delay. > > > Hi Peter, > > > > Am Samstag, den 20.03.2010, 16:20 +1100 schrieb 0123peter@gmail.com: > >> > >> [snip] > >> > > >> > unfortunately the problem with these cards is known, but no good > >> > solution for now. > >> > > >> > Best description is from Hartmut and starts here. > >> > > >> > http://www.spinics.net/lists/linux-dvb/msg26683.html > >> > > >> [snip] > >> > >> Interesting link. I have one of the cards mentioned > >> (an MSI TV(at)nywhere A/D hybrid). I've decided not to throw it away. > > > > to not leave you without any response at least. > > > > In hind sight, seeing how unfortunate using such devices can be, mainly > > because of being forced to try at random again with a cold boot after > > some i2c war brought down the tuner, we better should have such only in > > a still experimental league and not as supported. > > > > This was not foreseeable in such rudeness and neither Hartmut nor me > > have such devices. > > > > The Asus triple OEM 3in1 I have does not have any problems with loading > > firmware from file, the others do all get it from eeprom. > > > > So, actually nobody is investigating on it with real hardware. > > > > Maybe you can catch something with gpio_tracking and i2c_debug=1. > > I would expect that the complex analog tuner initialization gets broken > > somehow. This is at least known to be good to bring all down. > > > > Cheers, > > Hermann > > There was a patch about alignment that went through recently. > Revert "V4L/DVB (11906): saa7134: Use v4l bounding/alignment function" > Maybe that was it. did not even notice a problem with Trent's prior patch. The same is also at vivi. > Should I have a file called /etc/modprobe.d/TVanywhereAD > that contains the line, > > options saa7134 card=94 gpio_tracking i2c_debug=1 > > and then watch the command line output of "kaffeine"? If you want to produce debug output for failing firmware loading from file after a cold boot, yes, you might eventually be able to see that failing tuner initialization brings down i2c. If it is a additional new regression, then mercurial bisect can find the patch in question fairly quick. Mauro has a MSI cardbus device using also the card=94 entry, but at home he has no DVB-T. Cheers, Hermann