linux-kernel - Re: 2.6.24-rc2 breaks nVidia MCP51 High Definition Audio

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Message-ID: <s5hsl3h9zf7.wl%tiwai@suse.de>
Date:	Thu, 08 Nov 2007 04:41:32 +0100
From:	Takashi Iwai <tiwai@...e.de>
To:	Gerhard Mack <gmack@...erfire.net>
Cc:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org, Jaroslav Kysela <perex@...e.cz>,
	"Rafael J. Wysocki" <rjw@...k.pl>
Subject: Re: 2.6.24-rc2 breaks nVidia MCP51 High Definition Audio

At Wed, 7 Nov 2007 19:07:07 -0500 (EST),
Gerhard Mack wrote:
> 
> On Wed, 7 Nov 2007, Andrew Morton wrote:
> 
> > Date: Wed, 7 Nov 2007 15:21:27 -0800
> > From: Andrew Morton <akpm@...ux-foundation.org>
> > To: Gerhard Mack <gmack@...erfire.net>
> > Cc: linux-kernel@...r.kernel.org, Jaroslav Kysela <perex@...e.cz>,
> >     Takashi Iwai <tiwai@...e.de>, Rafael J. Wysocki <rjw@...k.pl>
> > Subject: Re: 2.6.24-rc2 breaks nVidia MCP51 High Definition Audio
> > 
> > > On Wed, 7 Nov 2007 17:39:41 -0500 (EST) Gerhard Mack <gmack@...erfire.net> wrote:
> > > hello,
> > > 
> > > This worked fine in 2.6.23 but now the kernel no longer sees my audio 
> > > controller.
> > > 
> > > 00:10.1 Audio device: nVidia Corporation MCP51 High Definition Audio (rev 
> > > a2)
> > > 00:10.1 0403: 10de:026c (rev a2)
> > > 
> > > Let me know if I can provide more info or test patches.
> > > 
> > 
> > Please provide the output of `dmesg -s 1000000' for both 2.6.23
> > and 2.6.24-rc3, thanks.
> > 
> > Are you sure that the driver is suitably configured?  Sometimes
> > we like to fiddle config options so that a `make oldconfig' will go and
> > unconfigure drivers which you need.
> 
> Found an option for generic HD audio and enabled that with only marginally 
> better results.  Now instead of not detecting my card it's showing a 
> single volume control in the mixer and not providing any sound at all.
> 
> 2.6.23:
> Advanced Linux Sound Architecture Driver Version 1.0.14 (Fri Jul 20 
> 09:12:58 2007 UTC).
> ACPI: PCI Interrupt Link [AAZA] enabled at IRQ 22
> ACPI: PCI Interrupt 0000:00:10.1[B] -> Link [AAZA] -> GSI 22 (level, low) 
> -> IRQ 22
> PCI: Setting latency timer of device 0000:00:10.1 to 64
> ALSA device list:
>   #0: HDA NVidia at 0xfe024000 irq 22
> GACT probability on
> 
> 2.6.24-rc2:
> Advanced Linux Sound Architecture Driver Version 1.0.15 (Tue Oct 23 
> 06:09:18 2007 UTC).
> ACPI: PCI Interrupt Link [AAZA] enabled at IRQ 22
> ACPI: PCI Interrupt 0000:00:10.1[B] -> Link [AAZA] -> GSI 22 (level, low) 
> -> IRQ 22
> PCI: Setting latency timer of device 0000:00:10.1 to 64
> ieee1394: Host added: ID:BUS[0-00:1023]  GUID[0011d8000101f761]
> ALSA device list:
>   #0: HDA NVidia at 0xfe024000 irq 22
> GACT probability on

Both look OK.

Please show your kernel config and /proc/asound/card0/codec#*
contents.  Did you choose CONFIG_SND_HDA_CODEC_* properly?

Also, please be more specific about your hardware.  The implementation
of HD-audio stuff is deifferent greatly among products.  It's very
important to know what kind of machine (h/w vendor, product name,
model, etc) to identify whether the configuration is known or not
(i.e. it was really supported or it worked just casually).


Takashi
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