lkml.org 
[lkml]   [2010]   [Mar]   [10]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
    /
    Date
    From
    SubjectRe: [alsa-devel] [PATCH]Support MCP89 and GT21x hdmi audio
    On Tue, 9 Mar 2010, VDR User wrote:

    > On Sun, Mar 7, 2010 at 8:46 PM, Wu Fengguang <fengguang.wu@intel.com> wrote:
    >> CC Jaroslav, maybe he has some idea on
    >>
    >>        pcm_hw.c: snd_pcm_hw_delay() SNDRV_PCM_IOCTL_DELAY failed.
    >>
    >> On Mon, Mar 08, 2010 at 12:35:37PM +0800, Wei Ni wrote:
    >>> Hi,
    >>> Because I don't have GT220 card on hand, I didn't test it yet.
    >>> So I didn't add this card to the patch file. I think you could add it after
    >>> you test it.
    >>>
    >>> About the warning messages, I don't know why.
    >>> May be some others can answer.
    >>>
    >>> Thanks
    >>> Wei.
    >>> nvpublic
    >>>
    >>> -----Original Message-----
    >>> From: VDR User [mailto:user.vdr@gmail.com]
    >>> Sent: Monday, March 08, 2010 3:22 AM
    >>> To: Wei Ni
    >>> Cc: Takashi Iwai; akpm; alsa-devel; Wu Fengguang; linux-kernel; Pavel Hofman
    >>> Subject: Re: [alsa-devel] [PATCH]Support MCP89 and GT21x hdmi audio
    >>>
    >>> I think this may be relevant to this subject, if not then my apologies.
    >>>
    >>> I've just installed a GT220 card and was able to get audio-over-hdmi
    >>> working by compiling the snapshot drivers from 20100307 which contain
    >>> Wei's new code.  I further had to patch the driver to recognize my
    >>> card with:
    >>>
    >>> --- alsa-driver-orig/alsa-kernel/pci/hda/patch_nvhdmi.c 2010-03-06
    >>> 18:00:12.000000000 -0800
    >>> +++ alsa-driver/alsa-kernel/pci/hda/patch_nvhdmi.c      2010-03-06
    >>> 18:02:00.000000000 -0800
    >>> @@ -1335,6 +1335,8 @@ static struct hda_codec_preset snd_hda_p
    >>>           .patch = patch_nvhdmi_8ch_89 },
    >>>         { .id = 0x10de000b, .name = "GT21x HDMI",
    >>>           .patch = patch_nvhdmi_8ch_89 },
    >>> +       { .id = 0x10de000a, .name = "GT220 HDMI",
    >>> +         .patch = patch_nvhdmi_8ch_89 },
    >>>         { .id = 0x10de000d, .name = "GT240 HDMI",
    >>>           .patch = patch_nvhdmi_8ch_89 },
    >>>         {} /* terminator */
    >>> @@ -1347,6 +1349,7 @@ MODULE_ALIAS("snd-hda-codec-id:10de0006"
    >>>  MODULE_ALIAS("snd-hda-codec-id:10de0007");
    >>>  MODULE_ALIAS("snd-hda-codec-id:10de0067");
    >>>  MODULE_ALIAS("snd-hda-codec-id:10de8001");
    >>> +MODULE_ALIAS("snd-hda-codec-id:10de000a");
    >>>  MODULE_ALIAS("snd-hda-codec-id:10de000c");
    >>>  MODULE_ALIAS("snd-hda-codec-id:10de000b");
    >>>  MODULE_ALIAS("snd-hda-codec-id:10de000d");
    >>>
    >>> This seems to work fine when running VDR but if I do anything else
    >>> like upgrade packages, compile something, or maybe create a bz2, then
    >>> I start to see _a lot_ of the following in my xine log:
    >>>
    >>> pcm_hw.c: snd_pcm_hw_delay() SNDRV_PCM_IOCTL_DELAY failed.
    >>>
    >>> With the old code this didn't happen.  However, my setup was an 8400gs
    >>> using SPDIF OUT from my mainboard to SPDIF IN on the card.  Then using
    >>> a dvi->hdmi cable into the tv.
    >>>
    >>> Again, I apologize if I'm posting this in the wrong place.
    >>>
    >>> Best regards.
    >
    > So nobody has any ideas at all? This is turning out to be a big
    > problem and I've discovered it will occur even without anything else
    > happening on the system. (originally I thought you needed to do some
    > other activity.) I've checked with some other devs I know and
    > everyone has said the problem is with alsa so it would seem there is a
    > serious bug somewhere since eventually those errors will happen and
    > the audio will start skipping like crazy.
    >
    > Please let me know if there's anything I can do within my ability to help.

    Could you do strace for ALSA ioctls? At least having the error code might
    help to identify this issue.

    Jaroslav

    -----
    Jaroslav Kysela <perex@perex.cz>
    Linux Kernel Sound Maintainer
    ALSA Project, Red Hat, Inc.
    \
     
     \ /
      Last update: 2010-03-10 09:01    [from the cache]
    ©2003-2014 Jasper Spaans. Advertise on this site