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

[Li Bo]

Hi, Robert
  Thank you for reply. We will test VT18128S S/PDIF function later.
  About 48 kHz sample rate limit, it is set for HW's stable work. Other
  sample rate can also work, if you need them just ignore this patch.

On Tue, Oct 6, 2009 at 9:42 AM, Robert Hancock <hancockrwd at gmail.com> wrote:
> 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..
>