From mboxrd@z Thu Jan 1 00:00:00 1970 From: Guy Stalnaker Subject: Re: Issues with HP DV4 laptop sound after Ubuntu Jaunty 9.04 upgrade Date: Tue, 05 May 2009 08:54:59 -0500 Message-ID: <4A004533.6030204@wisc.edu> References: <49FD2446.7040001@wisc.edu> <49FF0923.60902@wisc.edu> Reply-To: jstalnak@wisc.edu Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from argol.doit.wisc.edu (argol.doit.wisc.edu [144.92.197.212]) by alsa0.perex.cz (Postfix) with ESMTP id 112341037FA for ; Tue, 5 May 2009 15:55:15 +0200 (CEST) Received: from avs-daemon.smtpauth3.wiscmail.wisc.edu by smtpauth3.wiscmail.wisc.edu (Sun Java(tm) System Messaging Server 7.0-5.01 32bit (built Feb 19 2009)) id <0KJ60070GC016900@smtpauth3.wiscmail.wisc.edu> for alsa-devel@alsa-project.org; Tue, 05 May 2009 08:55:13 -0500 (CDT) In-reply-to: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: alsa-devel-bounces@alsa-project.org Errors-To: alsa-devel-bounces@alsa-project.org To: Takashi Iwai Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Takashi, I will take my queries there. Thanks for your help!! Guy Takashi Iwai wrote: > At Mon, 04 May 2009 10:26:27 -0500, > Guy Stalnaker wrote: >> Hello again, Takashi, >> >> Can you think of why a new distribution might be the cause, or a change >> that a new distribution makes, that would result in such behavior? The >> new distribution includes a new kernel and a new version of xorg (I >> think), so everything on top of the hardware is new. What's damned >> peculiar is that the HTML output interface is always recognized >> successfully. It's only the Audio device: ATI Technologies Inc SBx00 >> Azalia (Intel HDA) on pci 00:14.2 that seems to have this issue. >> >> To add oddity to the issue, I brought the laptop to work this morning >> and on boot the Audio device was successfully recognized and aplay -l >> shows it a card 0!! >> >> I wonder ... do you think that it's possible that a keyboard, mouse, >> printer, or some other USB device plugged into the laptop at boot could >> affect something like this? That's really the only difference between >> work and home. > > I guess it's an issue with ACPI or core PCI layer. Or suspend, if > this happens only after suspend/resume and not after a fresh boot. > > In any way, I recommend you to report this on kernel bugzilla. > > > Takashi -- Guy Stalnaker, I2@DOIT, jstalnak@wisc.edu 1210 West Dayton Street, Room 3209 CSS, Madison WI 53706 work 608.263.8035, cell 608.235.4718, fax 608.265.6681