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

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Date:	Thu, 8 Nov 2007 08:38:18 -0500 (EST)
From:	Gerhard Mack <gmack@...erfire.net>
To:	Takashi Iwai <tiwai@...e.de>
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

On Thu, 8 Nov 2007, Takashi Iwai wrote:

> 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).

The machine is an Asus M2NPV-VM motherboard with an Nforce MCP51 chpset. 
and there is not an CONFIG_SND_HDA_CODEC_ option for NVIDIA so I selected 
generic instead.

Pci info:
00:10.1 Audio device: nVidia Corporation MCP51 High Definition 
Audio (rev a2)
00:10.1 0403: 10de:026c (rev a2)

	Gerhard

--
Gerhard Mack

gmack@...erfire.net

<>< As a computer I find your faith in technology amusing.
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