From mboxrd@z Thu Jan 1 00:00:00 1970 From: Takashi Iwai Subject: Re: module snd-atiixp issue with suspend/hibernate/resume Date: Tue, 05 May 2009 12:52:14 +0200 Message-ID: References: <75b66ecd0904291942u3b352dbj74e5de00ebdf167b@mail.gmail.com> Mime-Version: 1.0 (generated by SEMI 1.14.6 - "Maruoka") Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Return-path: Received: from mx2.suse.de (cantor2.suse.de [195.135.220.15]) by alsa0.perex.cz (Postfix) with ESMTP id 1A1B92453B for ; Tue, 5 May 2009 12:52:15 +0200 (CEST) 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: Ryan Dunn Cc: alsa-devel@alsa-project.org List-Id: alsa-devel@alsa-project.org At Mon, 4 May 2009 20:21:24 -0400, Ryan Dunn wrote: > = > Thanks Takashi, I appreciate your help so far.=A0 I would normally agree = with > you that it is a BIOS issue, however, the machine is a dualboot with WinX= P, > where the mute LED works properly after a resume.=A0 Do you have any other > suggestions on where the issue may be?=A0 I hate to keep bugging the list= for > such a small issue, but I'm not familiar with the code at all.=A0 When I = get > more free time, I'll try to trace through the resume path to see if I can= find > anything.=A0 How does the driver actually toggle the LED?=A0 Is the regis= ter a > physical register on the card that the hardware reads?=A0 Or does the cod= e do > something else to toggle the LED? To be sure, you can toggle the bit of register 0x26 manually by writing the proc file. If it doesn't work, it's a BIOS issue indeed. However, there might be some fix / workaround in the suspend part. So, after confirming that the register change doesn't work, report it on either LKML or kernel bugzilla. Takashi > = > Ryan > = > On Mon, May 4, 2009 at 3:02 AM, Takashi Iwai wrote: > = > At Thu, 30 Apr 2009 22:24:35 -0400, > Ryan Dunn wrote: > > > > I apologize for the list spam.=A0 I didn't realize that this bit is= only > set > > when the led is on.=A0 So with that here are diffs of the regs with= and > without > > mute enabled, before and after suspend. > > Before suspend: > > diff regs_w-quirk.txt regs_w-quirk+mute.txt > > 2c2 > > < 0:02 =3D 1e1e > > --- > > > 0:02 =3D 9e1e > > 20c20 > > < 0:26 =3D 000f > > --- > > > 0:26 =3D 800f > > > > After resume: > > diff regs_w-quirk_after_resume.txt regs_w-quirk_after_resume+mute.t= xt > > 2c2 > > < 0:02 =3D 1e1e > > --- > > > 0:02 =3D 9e1e > > 20c20 > > < 0:26 =3D 000f > > --- > > > 0:26 =3D 800f > > > > So it looks as if the registers are all ok after a resume, but the = LED > doesn't > > turn back on. > = > Then I'd say it's rather a BIOS problem. > = > Takashi > = > =