From owner-freebsd-multimedia@FreeBSD.ORG Tue Aug 14 07:15:09 2007 Return-Path: Delivered-To: freebsd-multimedia@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 35FCE16A421 for ; Tue, 14 Aug 2007 07:15:09 +0000 (UTC) (envelope-from johnson.peter@gmail.com) Received: from wa-out-1112.google.com (wa-out-1112.google.com [209.85.146.180]) by mx1.freebsd.org (Postfix) with ESMTP id 07DD413C469 for ; Tue, 14 Aug 2007 07:15:08 +0000 (UTC) (envelope-from johnson.peter@gmail.com) Received: by wa-out-1112.google.com with SMTP id k17so2249394waf for ; Tue, 14 Aug 2007 00:15:08 -0700 (PDT) DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta; h=domainkey-signature:received:received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=WtB1L7h0McZxVMqebh42gsV6vVTp3WyCxwuSAOE+zhwrjCI47JvGbhO+PaamMVE2v7AlMjqCBuYZn8DcYXx7XIkvuF9jngw/sp/UDdM23G1NRqEgaGUFX3FLYcGlbCN9PWEo/OtWOJdTpzzyhaB9ql9vlenHf2QIPzvR9ms8AoE= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta; h=received:message-id:date:from:to:subject:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references; b=R+cZPyVd48Mlqnw6YKNznm9pH84Ky1BlR+bG3J7rklrA8MOnRu0rZTa4kue7TRRZ34ajjtZKgAT0jWZxjAdy1i6/9MtOlCBRcqli9PktfyNTi/u9Y+BECdNOf+70C6NXS06Y4SaXxUZls1jULrxrvYAtJPngtk2EtAWZcFFg1Zk= Received: by 10.114.110.1 with SMTP id i1mr5562492wac.1187075708641; Tue, 14 Aug 2007 00:15:08 -0700 (PDT) Received: by 10.114.56.4 with HTTP; Tue, 14 Aug 2007 00:15:08 -0700 (PDT) Message-ID: <1233f1b60708140015h4290c0ban4699dc0f6a9143a1@mail.gmail.com> Date: Tue, 14 Aug 2007 00:15:08 -0700 From: "Peter Johnson" To: "Peter Johnson" , "Ariff Abdullah" , freebsd-multimedia@freebsd.org In-Reply-To: <20070813194022.GE1463@roadrunner.spoerlein.net> MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Content-Disposition: inline References: <1233f1b60708052316r4943e5bbi29b1f194ab271019@mail.gmail.com> <20070806160331.4f0cce1d.ariff@FreeBSD.org> <1233f1b60708121140s324153c3sd6e39bf3b8c2a8a2@mail.gmail.com> <20070813194022.GE1463@roadrunner.spoerlein.net> Cc: Subject: Re: HDA STAC9205 X-BeenThere: freebsd-multimedia@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Multimedia discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Tue, 14 Aug 2007 07:15:09 -0000 On 8/13/07, Ulrich Spoerlein wrote: > On Sun, 12.08.2007 at 11:40:23 -0700, Peter Johnson wrote: > > - More problematic, the sound sounds like it's from a tape recorder > > with low battery: it speeds up and slows down, seemingly randomly, > > with a period of seconds. Makes for bad-sounding music playback at > > least. This is a laptop, so I suspected powerd, but even disabling > > powerd didn't seem to help. Is there a buffering setting I should be > > looking at changing? > > Perhaps something else is throttling? Try running some shell loops in > the background, like this: while :;do :;done On trying this again, stopping powerd seems to fix it after all, although the shell loop approach with powerd enabled also works. I do also have semi-random sound clicking with either approach and doing something like holding pagedown in firefox on a very long page, but this is probably unrelated. The core issue is that it appears cpu freq changing is interfering poorly with hda. Is this an insurmountable issue? How might we go about fixing it? (Yes, I'm willing to lend a hand). Cheers, Peter