From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavel Machek Subject: Re: 3.19 on Nokia n900: audio quality awful Date: Sun, 18 Jan 2015 13:01:39 +0100 Message-ID: <20150118120139.GA1509@amd> References: <20150106170433.GA5408@amd> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Received: from atrey.karlin.mff.cuni.cz ([195.113.26.193]:60574 "EHLO atrey.karlin.mff.cuni.cz" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751685AbbARMBm (ORCPT ); Sun, 18 Jan 2015 07:01:42 -0500 Content-Disposition: inline In-Reply-To: <20150106170433.GA5408@amd> Sender: linux-omap-owner@vger.kernel.org List-Id: linux-omap@vger.kernel.org To: pali.rohar@gmail.com, sre@debian.org, sre@ring0.de, kernel list , linux-arm-kernel , linux-omap@vger.kernel.org, tony@atomide.com, khilman@kernel.org, aaro.koskinen@iki.fi, ivo.g.dimitrov.75@gmail.com, peter.ujfalusi@ti.com, jarkko.nikula@bitmer.com Hi! If you have any idea about playback problems, help would be still welcome. I'll have to do bisect, otherwise, and it will not be easy. > In 3.18, sound is nice and clear. > > In 3.19, sound is unusable. It produces nasty tone when it should be > quiet, and there's at least as much noise as is sound. > > Unfortunately, list of mixers also changed (and there's cca 120 > settings), but a) it does not work with the old list and b) nothing I > could figure out did make the sound usable. Some setting resulted in > even more noise. > > Any idea what could have caused it? I tried audio recording this time. In 2.6.28-nokia, it is neccessary to set "Input select" na "digital mic", then it works. Input select being in "playback" option makes it easy to miss. In 3.18 and 3.19-rc3, all I can record are zeros. Does playback/recording work for you on OMAP 3430-based machines? Thanks, Pavel -- (english) http://www.livejournal.com/~pavelmachek (cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html