From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugtrack@alsa-project.org Subject: [ALSA - driver 0000543]: Noisy sound, broken mixer with via8235 (driver regression) Date: Sat, 25 Sep 2004 23:15:06 +0200 (CEST) Sender: alsa-devel-admin@lists.sourceforge.net Message-ID: <20040925211506.17BB425017@server.perex-int.cz> Content-Type: text/plain; charset=iso-8859-1 Return-path: Received: from mail.perex.cz (gate.perex.cz [82.113.61.162]) by alsa.alsa-project.org (ALSA's E-mail Delivery System) with ESMTP id 705B22BF for ; Sat, 25 Sep 2004 23:15:06 +0200 (MEST) Received: from server.perex-int.cz (server.perex-int.cz [192.168.100.2]) by gate.perex-int.cz (Perex's E-mail Delivery System) with ESMTP id 2F03025F67 for ; Sat, 25 Sep 2004 23:15:06 +0200 (MEST) Errors-To: alsa-devel-admin@lists.sourceforge.net List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , List-Archive: To: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org The following bug has been SUBMITTED. ====================================================================== https://bugtrack.alsa-project.org/alsa-bug/bug_view_page.php?bug_id=0000543 ====================================================================== Reported By: obsidian Assigned To: ====================================================================== Project: ALSA - driver Bug ID: 543 Category: PCI - via82xx Reproducibility: always Severity: major Priority: normal Status: new Distribution: Debian Sarge Kernel Version: 2.6.8-1-k7 ====================================================================== Date Submitted: 09-25-2004 23:15 CEST Last Modified: 09-25-2004 23:15 CEST ====================================================================== Summary: Noisy sound, broken mixer with via8235 (driver regression) Description: Sound is "shimmery" or "staticky" - noticeably bad. Mixer "master volume" has no effect. "PCM volume" cannot be adjusted. "DXS https://bugtrack.alsa-project.org/alsa-bug/bug_view_page.php?bug_id=0000001" volume has an effect but not "correct" - i.e. zero != silent. I do get the message (at boot): via82xx: Assuming DXS channels with 48k fixed sample rate. Please try dxs_support=1 or dxs_support=4 option and report if it works on your machine. This is a big prob. on this particular machine, which is supposed to connect to the stereo and play mp3s, among other things. Sound works normally outside Linux, and in Linux 2.4 with some Alsa 0.9.*. But with Linux 2.6 and alsa 1.0.5/6, bleah. I have been googling and troubleshooting all day. Here's what I've already tried: dxs_support=1, 2, 3 and 4 This makes zero difference, so I thought I might be doing it wrong; I tried it in modprobe.conf, modprobe.d/sound, and manually as an argument to modprobe, i.e. "modprobe snd-via82xx dxs_support=1", also with both rmmod'ing all alsa-related modules and rebooting altogether. Is there any way to tell if a dxs_support or other argument has been acted on? It really felt like they were all ignored. I could never get that original message to happen anytime but at boot, not matter what I did. modprobe -v did show an "insmod" line with the parameter(s) on it, though. ac97_quirk=0,1,2,3,4 No effect. Various kernel boot parameters, both alone and in combination with the above: noapic, nolapic, acpi=off, and pci=noacpi. No effect. (BTW, I am currently running with all 4.) Frustrating, because it seemed from searching a great many people have the exact same problem I do, but none of the many, varying "worked for me" answers have helped me. I'm a developer, somewhat kernel-savvy, and at your disposal. What do we try first? ====================================================================== Bug History Date Modified Username Field Change ====================================================================== 09-25-04 23:15 obsidian New Bug 09-25-04 23:15 obsidian Distribution => Debian Sarge 09-25-04 23:15 obsidian Kernel Version => 2.6.8-1-k7 ====================================================================== ------------------------------------------------------- This SF.Net email is sponsored by: YOU BE THE JUDGE. Be one of 170 Project Admins to receive an Apple iPod Mini FREE for your judgement on who ports your project to Linux PPC the best. Sponsored by IBM. Deadline: Sept. 24. Go here: http://sf.net/ppc_contest.php