[Alsa-user] Audio drop-out with ac3 on iec958 during heavy SATA io

Hello While watching hi-definitions video, I've noticed a lots of audio drop-outs when watching movies with raw ac3 on spdif output (ac3 decoding is done by my Yamaha amplifier). Long story short, I've been able to reproduce the problem when playing a raw ac3 stream with ac3dec while loading my

Re: [Alsa-user] Audio drop-out with ac3 on iec958 during heavy SATA io

> > Hello > > While watching hi-definitions video, I've noticed a lots of audio > drop-outs when watching movies with raw ac3 on spdif output (ac3 > decoding is done by my Yamaha amplifier). > > Long story short, I've been able to reproduce the problem when playing > a raw ac3 stream with ac3dec wh

Re: [Alsa-user] Audio drop-out with ac3 on iec958 during heavy SATA io

"Andrew Lyon" <[EMAIL PROTECTED]> writes: > as root cat /proc/interrupts , are your onboard sata and spdif sharing > interrupt? if so try changing bios settings or moving it into another > slot to change the interrupt. No. they do not share the same interrupt. sata/libata is on irq 201. The SB so

Re: [Alsa-user] Audio drop-out with ac3 on iec958 during heavy SATA io

> "Andrew Lyon" <[EMAIL PROTECTED]> writes: > > > as root cat /proc/interrupts , are your onboard sata and spdif sharing > > interrupt? if so try changing bios settings or moving it into another > > slot to change the interrupt. > > No. they do not share the same interrupt. sata/libata is on irq >

Re: [Alsa-user] Audio drop-out with ac3 on iec958 during heavy SATA io

"Andrew Lyon" <[EMAIL PROTECTED]> writes: > You are using APIC, the only thing i can suggest is to try without apic. No change at all. The ac3 stream still has so many drop-out it's quasi mute. Here's the command (with output) that I used: $ ac3dec -C en.ac3 Using PCM device 'plug:iec958:

Re: [Alsa-user] Audio drop-out with ac3 on iec958 during heavy SATA io

"Andrew Lyon" <[EMAIL PROTECTED]> writes: > hmm, which one is your sata ? sata_sil depends on libata. So the libata counter is the one you're looking for. > while reading from the drive and playing audio repeat the command 10 > seconds later and show what the interrupt counters have changed to.

Re: [Alsa-user] Audio drop-out with ac3 on iec958 during heavy SATA io

Dominique Dumont <[EMAIL PROTECTED]> writes: > So far, I've noticed that: > - Playing ac3 while loading PATA drive (same commands) works perfectly > - Playing PCM (with mplayer) on spdif while loading SATA leads to high > frequency noises (like a constinuous scritch-scritch) I've just tried the

Re: [Alsa-user] Audio drop-out with ac3 on iec958 during heavy SATA io

At Wed, 06 Sep 2006 15:17:20 +0200, Dominique Dumont wrote: > > Dominique Dumont <[EMAIL PROTECTED]> writes: > > > So far, I've noticed that: > > - Playing ac3 while loading PATA drive (same commands) works perfectly > > - Playing PCM (with mplayer) on spdif while loading SATA leads to high > >

Re: [Alsa-user] Audio drop-out with ac3 on iec958 during heavy SATA io

Takashi Iwai <[EMAIL PROTECTED]> writes: > Does the patch below have any influence? > The patch was necessary to run a52 plugin on emu10k1 on my test > system. No, sorry. AC3 output is still practically cut off when I run md5sum. Cheers --

Re: [Alsa-user] Audio drop-out with ac3 on iec958 during heavy SATA io

At Wed, 06 Sep 2006 18:56:17 +0200, Dominique Dumont wrote: > > Takashi Iwai <[EMAIL PROTECTED]> writes: > > > Does the patch below have any influence? > > The patch was necessary to run a52 plugin on emu10k1 on my test > > system. > > No, sorry. AC3 output is still practically cut off when I ru

Re: [Alsa-user] Audio drop-out with ac3 on iec958 during heavy SATA io

Takashi Iwai <[EMAIL PROTECTED]> writes: > Then check the buffer and period sizes of the PCM stream by checking > /proc/asound/card0/pcm2p/sub0/hw_params. Here we go: $ sudo cat /proc/asound/card0/pcm2p/sub0/hw_params access: RW_INTERLEAVED format: S16_LE subformat: STD channels: 2 rate: 48000 (

Re: [Alsa-user] Audio drop-out with ac3 on iec958 during heavy SATA io

At Wed, 06 Sep 2006 20:29:39 +0200, Dominique Dumont wrote: > > Takashi Iwai <[EMAIL PROTECTED]> writes: > > > Then check the buffer and period sizes of the PCM stream by checking > > /proc/asound/card0/pcm2p/sub0/hw_params. > > Here we go: > > $ sudo cat /proc/asound/card0/pcm2p/sub0/hw_params

Re: [Alsa-user] Audio drop-out with ac3 on iec958 during heavy SATA io

Takashi Iwai <[EMAIL PROTECTED]> writes: > Then check whether XRUN occurs at next. Make sure that you compiled > the driver with debug option (--with-debug=full configure option), > then do the following as root: > > # echo 2 > /proc/asound/card0/pcm2p/xrun_debug > > then play the ac3 file.

Re: [Alsa-user] Audio drop-out with ac3 on iec958 during heavy SATA io

On Sun, 2006-09-10 at 14:24 +0200, Dominique Dumont wrote: > Takashi Iwai <[EMAIL PROTECTED]> writes: > > > Then check whether XRUN occurs at next. Make sure that you compiled > > the driver with debug option (--with-debug=full configure option), > > then do the following as root: > > > > # e

Re: [Alsa-user] Audio drop-out with ac3 on iec958 during heavy SATA io

Lee Revell <[EMAIL PROTECTED]> writes: > I see your kernel uses the ACPI PM timer for timing. Is it a dual > core AMD by any chance? No, it's a 32 bits monocore (Barton XP3200) > If you use an SMP kernel, do you get different results with a UP > kernel? I use the kernel provided by Debian whic

Re: [Alsa-user] Audio drop-out with ac3 on iec958 during heavy SATA io

At Sun, 10 Sep 2006 20:30:30 +0200, Dominique Dumont wrote: > > Lee Revell <[EMAIL PROTECTED]> writes: > > > I see your kernel uses the ACPI PM timer for timing. Is it a dual > > core AMD by any chance? > > No, it's a 32 bits monocore (Barton XP3200) > > > If you use an SMP kernel, do you get

Re: [Alsa-user] Audio drop-out with ac3 on iec958 during heavy SATA io

On Tue, 2006-09-19 at 18:13 +0200, Takashi Iwai wrote: > Well, you've seen the xrun detection there, so it's basically the > problem of other parts, such as disk contoller driver. That is, > something else takes too long time, and the irq for sound can't be > handled at the right time. > > If the

Re: [Alsa-user] Audio drop-out with ac3 on iec958 during heavy SATA io

Takashi Iwai <[EMAIL PROTECTED]> writes: > Well, you've seen the xrun detection there, so it's basically the > problem of other parts, such as disk contoller driver. That is, > something else takes too long time, and the irq for sound can't be > handled at the right time. ok. But then, why is th

Re: [Alsa-user] Audio drop-out with ac3 on iec958 during heavy SATA io

Lee Revell <[EMAIL PROTECTED]> writes: > Does this help? > > # echo 64 > /sys/block/hdc/queue/max_sectors_kb > Replace hdc with sda or whatever the kernel calls your disk and repeat > for all disks. No change. > It's still a bug IMHO if this is needed, but might make your system > usable

Re: [Alsa-user] Audio drop-out with ac3 on iec958 during heavy SATA io

At Wed, 20 Sep 2006 16:35:35 +0200, Dominique Dumont wrote: > > Takashi Iwai <[EMAIL PROTECTED]> writes: > > > Well, you've seen the xrun detection there, so it's basically the > > problem of other parts, such as disk contoller driver. That is, > > something else takes too long time, and the irq

Re: [Alsa-user] Audio drop-out with ac3 on iec958 during heavy SATA io

Takashi Iwai <[EMAIL PROTECTED]> writes: > Well, you've seen the xrun detection there, so it's basically the > problem of other parts, such as disk contoller driver. That is, > something else takes too long time, and the irq for sound can't be > handled at the right time. Another question: shoul

Re: [Alsa-user] Audio drop-out with ac3 on iec958 during heavy SATA io

Takashi Iwai <[EMAIL PROTECTED]> writes: > If the preempt option doesn't solve the problem, I'd recommend you to > consult on LKML. This is weird. With the preempt kernel, I get an xrun every time I start reading the ac3 stream on sata disk. Not other I/O on the sata device: Sep 24 20:50:10 gand