From: Raymond Yau <superquad.vortex2@gmail.com>
To: ALSA Development Mailing List <alsa-devel@alsa-project.org>
Subject: Re: [RFC] disabling ALSA period interrupts
Date: Sat, 1 May 2010 06:51:28 +0800 [thread overview]
Message-ID: <m2z4f3252891004301551u6dd4d47elab1d03ec6fdf98b3@mail.gmail.com> (raw)
In-Reply-To: <m2m6160a5131004300646v2c9af945geaec5bc8610e7146@mail.gmail.com>
2010/4/30 pl bossart <bossart.nospam@gmail.com>
> >
> > Do your test need the patch which you have posted to pulseaudio developer
> > mailing list
> >
> > http://thread.gmane.org/gmane.comp.audio.pulseaudio.general/6671
> >
> > it seem that fix should be in driver side if it is hardware specific
>
> No it's totally unrelated.
>
>> On my HDAudio test system, 128 bytes was already more than enough to
prevent audible noises.
>> Rewinding the ring buffer completely causes audible issues with DMAs.
Previous solution didn't work with tsched=0, and used tsched_watermark
for guardband, which isn't linked to hardware and could become really high
if underflows occurred.
But the rewind issue is not limiting to (PCIE) HDaudio since all PCI sound
cards would have the same problem ?
i.e. snd_pcm_rewindable() return wrong value
next prev parent reply other threads:[~2010-04-30 22:51 UTC|newest]
Thread overview: 58+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-29 22:38 [RFC] disabling ALSA period interrupts pl bossart
2010-04-29 23:18 ` Raymond Yau
[not found] ` <k2j6160a5131004291644rd8645dc7oecee28ee290b683f@mail.gmail.com>
2010-04-30 0:59 ` Raymond Yau
2010-04-30 1:09 ` Raymond Yau
2010-04-30 13:46 ` pl bossart
2010-04-30 22:51 ` Raymond Yau [this message]
2010-04-30 3:47 ` Raymond Yau
2010-04-30 11:24 ` Clemens Ladisch
2010-04-30 13:44 ` pl bossart
2010-05-06 1:24 ` Raymond Yau
2010-05-14 8:12 ` Takashi Iwai
2010-05-14 13:36 ` pl bossart
2010-05-14 21:03 ` pl bossart
2010-05-17 9:12 ` Clemens Ladisch
2010-05-17 9:14 ` [PATCH 1/3] add API to allow disabling " Clemens Ladisch
2010-05-17 9:23 ` Jassi Brar
2010-05-17 11:16 ` Clemens Ladisch
2010-05-17 11:27 ` Jassi Brar
2010-05-17 14:42 ` Jaroslav Kysela
2010-05-17 16:05 ` pl bossart
2010-05-17 16:22 ` Jaroslav Kysela
2010-05-17 16:37 ` pl bossart
2010-05-17 16:54 ` Jaroslav Kysela
2010-05-18 9:11 ` Jassi Brar
2010-05-17 13:59 ` pl bossart
2010-05-17 9:14 ` [PATCH 2/3] ALSA: hda-intel: add support for disabling period irq Clemens Ladisch
2010-05-17 14:05 ` pl bossart
2010-05-17 9:15 ` [PATCH 3/3] ALSA: oxygen: " Clemens Ladisch
2010-05-17 14:17 ` [RFC] disabling ALSA period interrupts pl bossart
2010-05-20 14:50 ` Clemens Ladisch
2010-04-30 16:44 ` Liam Girdwood
2010-04-30 17:39 ` pl bossart
2010-05-04 3:18 ` Raymond Yau
2010-05-07 23:25 ` [alsa-devel] " Lennart Poettering
2010-05-08 3:12 ` pl bossart
2010-05-12 4:00 ` pl bossart
2010-05-12 13:00 ` Jaroslav Kysela
2010-05-12 17:10 ` [alsa-devel] " pl bossart
2010-05-12 18:15 ` Jaroslav Kysela
2010-05-13 3:56 ` pl bossart
2010-05-12 7:22 ` James Courtier-Dutton
2010-05-12 12:42 ` pl bossart
2010-05-13 0:37 ` Raymond Yau
2010-05-14 0:43 ` Raymond Yau
2010-05-14 1:51 ` pl bossart
2010-05-14 2:45 ` Raymond Yau
2010-05-14 3:09 ` Raymond Yau
2010-05-14 4:03 ` Raymond Yau
2010-05-12 13:08 ` Jassi Brar
2010-05-12 13:50 ` [alsa-devel] " pl bossart
2010-05-12 14:15 ` Jassi Brar
2010-05-12 14:16 ` Mark Brown
2010-05-13 0:04 ` Raymond Yau
2010-05-14 4:07 ` Jassi Brar
2010-05-14 4:39 ` pl bossart
2010-05-14 5:27 ` Jassi Brar
2010-05-12 14:41 ` Raymond Yau
2010-05-13 7:27 ` Raymond Yau
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