Re: skype on current/5.x and maestro-2E sound

On Mon, 16 May 2005 18:04:51 +0200
Divacky Roman <xdivac02_at_stud.fit.vutbr.cz> wrote:
> On Mon, May 16, 2005 at 10:50:39PM +0800, Ariff Abdullah 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 pí?e 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 tried this patch and with:
> sysctl hw.snd.maxautovchans=1
> sysctl hw.snd.pcm0.vchans=1
> 
> it works! so vchans seems to be the culprit... also one has to
> disable hint.pcm.0.via_dxs_disabled="1"
> 
> from my pov its an improvement! but why is vchans making such big
> regression? shouldnt be via_dsx_disabled set on default on rev=0x78
> (rev I use)?
> 
> thnx, what other info/help can I provide?
> 
> roman

Nice to hear that. How about other patches from

http://staff.mybsd.org.my/skywizard/FreeBSD/sound/

especially sound.c.diff / mixer.c.diff. It fix serious refcount
miscalculation, causing kernel panic while unloading busy sound driver
*twice*. I think it's for *everybody*, including vchan.c.diff.

--

Ariff Abdullah
MyBSD

http://www.MyBSD.org.my (IPv6/IPv4)
http://staff.MyBSD.org.my (IPv6/IPv4)
http://tomoyo.MyBSD.org.my (IPv6/IPv4)