Sound patches and volume problems?

[Ariff Abdullah]

On Sun, 28 Aug 2005 23:46:13 +0200
Torfinn Ingolfsen <torfinn.ingolfsen at broadpark.no> wrote:
> Hello!
> 
> I installed the massive sound patches from
> http://staff.mybsd.org.my/skywizard/FreeBSD/sound/
> 
> on a laptop running an up-to-date 5.4-stable:
> tingo at kg-jobbpc3$ uname -a
> FreeBSD kg-jobbpc3.kg4.no 5.4-STABLE FreeBSD 5.4-STABLE #3: Thu Aug
> 25 23:20:08 CEST 2005    
> root at kg-jobbpc3.kg4.no:/storage/usr/obj/storage/usr/src/sys/T41_NOU
> HID  i386
> 
> The patches lets FreeBSD detect all the usb audio devices that I
> have; this is good.
> 
> However, there seems to be some problems with the volume controls...
> it seems like the volume is ... sort of relative now, not absolute.
> And when I adjust volume, equalizer settings etc, it seems lie the
> volume gets ... well, lost, and gets louder all the time, until
> finally I have to shut down xmms to save my speakers / headphones.
> 
> The last device tested was a set of USB speakers from Jazz Speakers
> (model no. J1116U), and theyu have the same problem.
> Here are the lines from /var/loig/messages showing how the speakers
> are detected:
> Aug 28 23:06:53 kg-jobbpc3 kernel: ugen0: C-Media INC. USB Audio,
> rev 1.10/0.10, addr 2 Aug 28 23:08:10 kg-jobbpc3 kernel: ugen0: at
> uhub1 port 2 (addr 2) disconnected Aug 28 23:08:10 kg-jobbpc3
> kernel: ugen0: detached Aug 28 23:08:17 kg-jobbpc3 kernel: uaudio0:
> C-Media INC. USB Audio, rev 1.10/0.10, addr 2 Aug 28 23:08:17
> kg-jobbpc3 kernel: uaudio0: audio rev 1.00 Aug 28 23:08:17
> kg-jobbpc3 kernel: pcm1: <USB Audio> on uaudio0 Aug 28 23:08:17
> kg-jobbpc3 kernel: record channel supported format list invalid Aug
> 28 23:08:17 kg-jobbpc3 kernel: pcm1: chn_init(pcm1:record:0) failed:
> err = 19 Aug 28 23:08:17 kg-jobbpc3 kernel: pcm1:
> pcm_chn_create(ua_chan, -1, 0xc2f12a00) failed
> 
> Currently, I have only tested with xmms, because there is no easy
> way in zinf to chenge output device.
> 
> I'm sorry that my little "problem report" isn't more accurate, but
> so far I'm just seeing the symptoms, and don't know where to start
> looking for the problems yet. -- 
> Regards,
> Torfinn Ingolfsen,
> Norway
> 
Unfortunately, this is pretty much usb audio specific and I don't have
any of it. People with this kind of hardware probably could tell you
more, but I do suspect it's all about incorrect volume resolution or
perhaps volume miscalculation within uaudio.c.


--

Ariff Abdullah
MyBSD

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