snd_via8233 dxs_disabled patches (was: Re: skype on current/5.x and maestro-2E sound)

From: Ion-Mihai Tetcu <itetcu_at_people.tecnik93.com>
Date: Wed, 18 May 2005 14:59:51 +0300
On Mon, 16 May 2005 22:50:39 +0800
Ariff Abdullah <skywizard_at_MyBSD.org.my> wrote:

> On Sun, 15 May 2005 22:15:22 +0300
> Ion-Mihai Tetcu <itetcu_at_people.tecnik93.com> wrote:
> > On Sun, 15 May 2005 20:59:50 +0200
> > Pav Lucistnik <pav_at_FreeBSD.org> wrote:
> > 
> > > Ion-Mihai Tetcu pí¨e v ne 15. 05. 2005 v 21:51 +0300:
> > > > On Sun, 15 May 2005 20:35:40 +0200
> > > > Pav Lucistnik <pav_at_FreeBSD.org> wrote:
> > > > 
> > > > > Edwin L. Culp píše v ne 15. 05. 2005 v 12:14 -0500:
> > > > > > Quoting Divacky Roman <xdivac02_at_stud.fit.vutbr.cz>:
> > > > > > 
> > > > > > > On Sun, May 15, 2005 at 02:41:24AM -0700, Julian Elischer
> > > > > > > wrote:
> > > > > > >> cpghost_at_cordula.ws wrote:
> > > > > > >> >On Sat, May 14, 2005 at 06:51:48PM -0700, Julian
> > > > > > >Elischer wrote: > >
> > > > > > >> >>Has anyone run skype successfully on these versions (5
> > > > > > >or 6) of freeBSD? > >>I can run it successfully on 4.x but
> > > > > > >on my 5.x machine the audio is > >>completely
> > > > > > >> >>broken up. like someone is chopping the audio stream.
> > > > > > >> >
> > > > > > >> >
> > > > > > >> >I'm running Skype on 5.4 (via82c686). On an AMD Duron
> > > > > > >1200 MHz, the > >sound quality is all right; on an EPIA
> > > > > > >5000 Eden 500 MHz (also via82c686), > >the sound is totally
> > > > > > >chopped and it is impossible to follow. >
> > > > > > >> hmm so maybe its the fact that my machine is too slow..
> > > > > > >it's also 500MHz > my 1GHz 4.11 machine seems to run it
> > > > > > >fine.
> > > > > > >
> > > > > > > I have exactly the same problem (broken sound)
> > > > > > > pcm0: <VIA VT8237> at io 0xe800 irq 12 kld snd_via8233
> > > > > > > (5p/1r/0v channels duplex default)
> > > > > > 
> > > > > > I had this on all my AMD/Athlon boards with the via sound
> > > > > > chipset.  I  found a reference to the problem, no solution,
> > > > > > on one of the Skype  BB's.  I finally just disabled the
> > > > > > onboard sound and added cheap  available sound cards and
> > > > > > they all have worked great.  I've tried to  get the via
> > > > > > sound to work a couple of times after that, without success.
> > > > > 
> > > > > Same story, different solution. With Open Sound drivers from
> > > > > www.opensound.com Skype works correctly.
> > > > 
> > > > Is this with via8235/8237 on -STABLE ?
> > > 
> > > pcm0: <VIA VT8237> port 0xb400-0xb4ff irq 22 at device 17.5 on
> > > pci0 pcm0: <Avance Logic ALC850 AC97 Codec>
> > > 
> > > Both RELENG_5/i386 and RELENG_5/amd64 (different boards, same
> > > chip)
> > 
> > 
> > Yup, I got one of this.
> > 
> >
>  
> Can you guys with snd_via8233 driver try these patches?
> 
> http://staff.mybsd.org.my/skywizard/FreeBSD/sound/via8233.c.diff
> http://staff.mybsd.org.my/skywizard/FreeBSD/sound/vchan.c.diff
> 
> set your hw.snd.maxautovchans or hw.snd.pcm0.vchans appropriately, add
> hint.pcm.0.via_dxs_disabled="1" into your /boot/device.hints and
> possibly with option PREEMPTION in kernel.

I get an instant reboot when trying to play anything in xmms; I tested
it this morning before leaving for work so this is all that I can say
for now.

With hw.snd.maxautovchans=0 it doesn't happen.

5.4-STABLE #6: Wed May 18 04:35:34 EEST 2005 sources + your patches and
the hint, ULE and no PREEMPTION kernel,

pcm0_at_pci0:17:5: class=0x040100 card=0xa0021458 chip=0x30591106 rev=0x60 hdr=0x00
    vendor   = 'VIA Technologies Inc'
    device   = 'VT8233/33A/8235/8237 AC97 Enhanced Audio Controller'
    class    = multimedia
    subclass = audio

pcm0: <VIA VT8237> port 0xbc00-0xbcff irq 22 at device 17.5 on pci0
pcm0: Reserved 0x100 bytes for rid 0x10 type 4 at 0xbc00
pcm0: [MPSAFE]
pcm0: <Avance Logic ALC655 AC97 Codec (id = 0x414c4760)>
pcm0: Codec features 5 bit master volume, no 3D Stereo Enhancement
pcm0: Primary codec extended features reserved 1, center DAC, surround DAC, LFE DAC
, reserved 5
pcm0: sndbuf_setmap 252000, 1000; 0xc237e000 -> 252000
pcm0: sndbuf_setmap 274000, 1000; 0xc2380000 -> 274000
pcm0: <VIA DXS Disabled>

 # sysctl hw.snd
hw.snd.report_soft_formats: 1
hw.snd.targetirqrate: 32
hw.snd.verbose: 3
hw.snd.maxautovchans: 3
hw.snd.unit: 0
hw.snd.pcm0.buffersize: 4096
hw.snd.pcm0.vchans: 1

 # cat /dev/sndstat
FreeBSD Audio Driver (newpcm)
Installed devices:
pcm0: <VIA VT8237> at io 0xbc00 irq 22 kld snd_via8233 (1p/1r/1v channels duplex default)
        [pcm0:play:0]: spd 48000, fmt 0x10000010, flags 0x00003000, 0x00000000
        interrupts 5678, underruns 5650, ready 0
        {userland} -> feeder_vchan_s16(0x10000010) -> {hardware}
        pcm0:play:0[pcm0:virtual:0]: spd 44100/48000, fmt 0x10000010, flags 0x10000000, 0x00000010
        interrupts 0, underruns 0, ready 0
        {userland} -> feeder_root(0x10000010) -> feeder_rate(44100 -> 48000) -> {hardware}
        [pcm0:record:0]: spd 0, fmt 0x00000000/0x00000008, flags 0x00000000, 0x00000000
        interrupts 0, overruns 0, hfree 4096, sfree 0
        {hardware} -> feeder_root(0x00000000) -> {userland}

File Versions:
$FreeBSD: src/sys/dev/sound/pci/via8233.c,v 1.17.2.2 2005/01/30 01:00:04 imp Exp $
$FreeBSD: src/sys/dev/sound/isa/sndbuf_dma.c,v 1.2.4.1 2005/01/30 01:00:03 imp Exp $
$FreeBSD: src/sys/dev/sound/pcm/vchan.c,v 1.16.2.1 2005/01/30 01:00:05 imp Exp $
$FreeBSD: src/sys/dev/sound/pcm/sound.c,v 1.92.2.1 2005/01/30 01:00:05 imp Exp $
$FreeBSD: src/sys/dev/sound/pcm/sndstat.c,v 1.17.2.2 2005/01/30 01:00:05 imp Exp $
$FreeBSD: src/sys/dev/sound/pcm/mixer.c,v 1.40.2.1 2005/01/30 01:00:05 imp Exp $
$FreeBSD: src/sys/dev/sound/pcm/feeder_rate.c,v 1.10.6.1 2005/01/30 01:00:05 imp Exp $
$FreeBSD: src/sys/dev/sound/pcm/feeder_fmt.c,v 1.13.4.1 2005/01/30 01:00:05 imp Exp $
$FreeBSD: src/sys/dev/sound/pcm/feeder.c,v 1.32.4.1 2005/01/30 01:00:05 imp Exp $
$FreeBSD: src/sys/dev/sound/pcm/fake.c,v 1.13.4.1 2005/01/30 01:00:05 imp Exp $
$FreeBSD: src/sys/dev/sound/pcm/dsp.c,v 1.77.2.1 2005/01/30 01:00:04 imp Exp $
$FreeBSD: src/sys/dev/sound/pcm/channel.c,v 1.97.2.1 2005/01/30 01:00:04 imp Exp $
$FreeBSD: src/sys/dev/sound/pcm/buffer.c,v 1.23.2.2 2005/01/30 01:00:04 imp Exp $
$FreeBSD: src/sys/dev/sound/pcm/ac97_patch.c,v 1.2.4.1 2005/01/30 01:00:04 imp Exp $
$FreeBSD: src/sys/dev/sound/pcm/ac97.c,v 1.51.2.2 2005/05/01 14:31:06 scottl Exp $

and this xmms config:
[OSS]
audio_device=0
mixer_device=0
buffer_size=3000
prebuffer=25
use_master=FALSE
use_alt_audio_device=FALSE
            ^^^^^^^^^^^^^^^ (I think this was =TRUE, I'll check when I get home)
alt_audio_device=/dev/dsp0.2
use_alt_mixer_device=FALSE
alt_mixer_device=/dev/mixer


-- 
IOnut
Unregistered ;) FreeBSD "user"
Received on Wed May 18 2005 - 10:00:04 UTC

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