[alsa-devel] [PATCH 0/31] HDA patch_via.c update

[Robert Hancock]

On Mon, Oct 5, 2009 at 7:15 AM, Li Bo <liboat at gmail.com> wrote:
> Hi!
>
> Following are a series of patches for patch_via.c, started from git clone of
> git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound-2.6 recently.
>
> Please have a review and give comments, thank you!
>
> Outlook Access Web cannot send plain-text mail, so my gmail is used
> instead.
> You can also contact with me with LoganLi at viatech.com.cn, or
> mail to HaraldWelte at viatech.com and lydiawang at viatech.com.cn.

OK, I just tried this patchset on my Asus P7P55D PRO (VIA VT1828S).
Good news is that the analog 5.1 output and microphone input appear to
work fine. However I am getting no output on SPDIF optical output at
all, the jack doesn't even light up which suggests that the codec
isn't powering on the SPDIF port, or something like that.

I've seen a few of these messages in dmesg while poking around with
things, they may or may not be related:

ALSA sound/pci/hda/hda_intel.c:683: No response from codec, disabling
MSI: last cmd=0x01ef0100
ALSA sound/pci/hda/hda_intel.c:698: azx_get_response timeout,
switching to polling mode: last cmd=0x01ef0100

ALSA sound/pci/hda/hda_intel.c:683: No response from codec, disabling
MSI: last cmd=0x024f0900
ALSA sound/pci/hda/hda_intel.c:698: azx_get_response timeout,
switching to polling mode: last cmd=0x024f0900

ALSA sound/pci/hda/hda_intel.c:683: No response from codec, disabling
MSI: last cmd=0x021f0200
ALSA sound/pci/hda/hda_intel.c:698: azx_get_response timeout,
switching to polling mode: last cmd=0x021f0200

I also tested in Windows and SPDIF output works (obviously) with rates
up to 192KHz, so I'm not sure why this patch set limits it to 48KHz
only..