> 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@linux-foundation.org>
> > > To: Gerhard Mack <gmack@innerfire.net>
> > > Cc:
linux-kernel@vger.kernel.org, Jaroslav Kysela <perex@suse.cz>,
> > > Takashi Iwai <tiwai@suse.de>, Rafael J. Wysocki <rjw@sisk.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@innerfire.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).
