From mboxrd@z Thu Jan 1 00:00:00 1970 From: Clemens Ladisch Subject: Re: "modprobe snd_hda_intel" crashes on my hardware Date: Wed, 28 Sep 2011 17:01:15 +0200 Message-ID: <4E8336BB.2090502@ladisch.de> References: <4E817010.7030607@ezono.com> <4E82D2C6.9060307@ezono.com> <4E83116A.7070000@ezono.com> <4E83184E.10203@ezono.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from out3.smtp.messagingengine.com (out3.smtp.messagingengine.com [66.111.4.27]) by alsa0.perex.cz (Postfix) with ESMTP id 51107103894 for ; Wed, 28 Sep 2011 17:00:58 +0200 (CEST) In-Reply-To: <4E83184E.10203@ezono.com> 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: Abdelghani Ouchabane Cc: Takashi Iwai , alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org Abdelghani Ouchabane wrote: > in /proc/asound/card0/codec#2 > > system 1 : Subsystem Id: 0x7fafffdd > system 2 : Subsystem Id: 0xffffffff > system 3 : Subsystem Id: 0xff7f7fa3 > > Why the "Subsystem Id" is different between the three systems? This is a HDA codec register that should be initialized by the BIOS. Apparently, yours doesn't, and the register contents are somewhat random. Bug whoever is responsible for that BIOS. A system not initializing the pin config and subsystem registers is a violation of the HDA specification. Regards, Clemens