From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from a-pb-sasl-quonix.pobox.com ([208.72.237.25]:39500 "EHLO sasl.smtp.pobox.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754582Ab0DMCad (ORCPT ); Mon, 12 Apr 2010 22:30:33 -0400 Message-ID: <4BC3D73D.5030106@pobox.com> Date: Mon, 12 Apr 2010 22:30:21 -0400 From: Mark Lord MIME-Version: 1.0 To: Andy Walls CC: Hans Verkuil , linux-media@vger.kernel.org, ivtv-devel@ivtvdriver.org, Darren Blaber Subject: Re: cx18: "missing audio" for analog recordings References: <4B8BE647.7070709@teksavvy.com> <1267493641.4035.17.camel@palomino.walls.org> <4B8CA8DD.5030605@teksavvy.com> <1267533630.3123.17.camel@palomino.walls.org> <4B9DA003.90306@teksavvy.com> <1268653884.3209.32.camel@palomino.walls.org> <4BC0FB79.7080601@pobox.com> <1270940043.3100.43.camel@palomino.walls.org> <4BC1401F.9080203@pobox.com> <1270961760.5365.14.camel@palomino.walls.org> <1270986453.3077.4.camel@palomino.walls.org> <4BC1CDA2.7070003@pobox.com> <1271012464.24325.34.camel@palomino.walls.org> <4BC37DB2.3070107@pobox.com> <1271107061.3246.52.camel@palomino.walls.org> <4BC3D578.9060107@pobox.com> In-Reply-To: <4BC3D578.9060107@pobox.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: On 12/04/10 10:22 PM, Mark Lord wrote: .. > Okay, the "fallback" works -- recordings made with it do have good audio. > > And.. my hypothesis appears to be true thus far: once the audio fails, > requiring the fallback, it stays failed until the driver is reloaded. > > Every subsequent recording made (after a "fallback") also experiences the fallback. > This is with a good channel, with good audio. Subsequent recordings > using the exact same channel. .. Mmm.. further to that: the problem went away as soon as I told it to tune to a different channel. No more fallbacks (for now). It can now even retune the original channel without fallbacks. So.. tuning to a new channel appears to fix whatever the bad state was that was triggering the fallbacks. Based on my sample of one, anyway. ;) Now that it is behaving again, I cannot poke further until the next time I'm lucky enough to be around when it fails. > Weird, eh. I wonder how to discover the real cause? > Good workaround, though! Thanks. Cheers -- Mark Lord Real-Time Remedies Inc. mlord@pobox.com