From mboxrd@z Thu Jan 1 00:00:00 1970 From: bugtrack@alsa-project.org Subject: [ALSA - driver 0001279]: Audigy2 NX produces crackles on USB2, fine on USB1 Date: Wed, 27 Jul 2005 10:53:12 +0200 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit Return-path: Received: from bugtrack.alsa-project.org (gate.perex.cz [82.113.61.162]) by alsa.jcu.cz (ALSA's E-mail Delivery System) with ESMTP id 8F4F81D5 for ; Wed, 27 Jul 2005 10:53:12 +0200 (MEST) Sender: alsa-devel-admin@lists.sourceforge.net 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 A NOTE has been added to this issue. ====================================================================== ====================================================================== Reported By: bluebottle Assigned To: Clemens Ladisch ====================================================================== Project: ALSA - driver Issue ID: 1279 Category: USB - usb-audio Reproducibility: always Severity: minor Priority: normal Status: assigned Distribution: Ubuntu Kernel Version: 2.6.12.2 ====================================================================== Date Submitted: 07-24-2005 07:03 CEST Last Modified: 07-27-2005 10:53 CEST ====================================================================== Summary: Audigy2 NX produces crackles on USB2, fine on USB1 Description: I recently upgraded to a 2.6.12.2 kernel (from 2.6.12) and now the Audigy2 NX is detected as a fully-fledged USB2 device. :) But... it produces crackles in the sound that fade in and out over about a two second period, continuously, upon trying to play any sound. The sound does play, but has all those crackles in it. :( If I go into BIOS and disable USB2, making my Audigy a USB1 device again, it works very well indeed. :) ====================================================================== ---------------------------------------------------------------------- Clemens Ladisch - 07-26-05 10:19 ---------------------------------------------------------------------- The new driver doesn't enable the NX's USB2 mode with kernels before 2.6.13 because those kernels have a bug in the EHCI driver that corrupts memory and eventually leads to a crash. To get USB2 with 2.6.12, apply the patch in itd.patch, and replace the version number in the line containing "KERNEL_VERSION(2, 6, 13)" in alsa-driver/usb/usbaudio.patch before compiling ALSA. What is the error when compiling the lib? ---------------------------------------------------------------------- bluebottle - 07-27-05 10:53 ---------------------------------------------------------------------- Yep, that patch did the trick. Works great now in USB2 mode. Cool to edit the device driver. :) I've uploaded the output of my alsa-libs compile - I did that with the cvscompile script because the "./build prep" script dies with "src/Makefile.am:21: invalid unused variable name: `AM_LDFLAGS'", but I don't know how valid my autoconf/automake environment is. Autoconf is 2.59a, automake is 1.4. Something wrong with my system could explain the link failure, I guess. Thank you for your time. Issue History Date Modified Username Field Change ====================================================================== 07-24-05 07:03 bluebottle New Issue 07-24-05 07:03 bluebottle Distribution => Ubuntu 07-24-05 07:03 bluebottle Kernel Version => 2.6.12.2 07-24-05 09:58 bluebottle Note Added: 0005557 07-25-05 11:03 Clemens LadischNote Added: 0005561 07-26-05 09:52 bluebottle Note Added: 0005569 07-26-05 10:16 Clemens LadischFile Added: itd.patch 07-26-05 10:19 Clemens LadischNote Added: 0005570 07-27-05 10:09 bluebottle File Added: libs-compile-error.txt 07-27-05 10:53 bluebottle Note Added: 0005572 ====================================================================== ------------------------------------------------------- SF.Net email is sponsored by: Discover Easy Linux Migration Strategies from IBM. Find simple to follow Roadmaps, straightforward articles, informative Webcasts and more! Get everything you need to get up to speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click