Messages in this thread | | | Date | Wed, 10 Mar 2010 08:58:16 +0100 (CET) | From | Jaroslav Kysela <> | Subject | Re: [alsa-devel] [PATCH]Support MCP89 and GT21x hdmi audio |
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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.
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