Half success with snd_hda and NVidia MCP51

Jean-Baptiste Quenot jbq at caraldi.com
Sun Dec 31 03:24:04 PST 2006


Hi,

Thank you very much for providing sound support on the High
Definition Audio Controller, and for your help on IRC.

Here is my environment:

$ uname -a
FreeBSD zoupla.cottages 6.2-PRERELEASE FreeBSD 6.2-PRERELEASE #0: Fri Dec 15 23:24:25 CET 2006     jbq at zoupla.cottages:/usr/obj/usr/src/sys/GENERIC  amd64

$ pciconf -lv | grep -B 4 multimedia
                          ^^^^^^^^^^ NOTE that I replaced audio
                                     with multimedia!
    class    = bridge
    subclass = PCI-PCI
pcm0 at pci0:16:1: class=0x040300 card=0x01ed1028 chip=0x026c10de rev=0xa2 hdr=0x00
    vendor   = 'NVIDIA Corporation'
    class    = multimedia

$ sysctl hw.snd
hw.snd.latency_profile: 1
hw.snd.latency: 5
hw.snd.report_soft_formats: 1
hw.snd.feeder_buffersize: 16384
hw.snd.feeder_fmt_downmix: 0
hw.snd.feeder_rate_round: 25
hw.snd.feeder_rate_max: 2016000
hw.snd.feeder_rate_min: 1
hw.snd.verbose: 1
hw.snd.sndstat_isopen: 0
hw.snd.maxautovchans: 4
hw.snd.default_unit: 0


The result is  a half-success: sound output works  fine, but sound
recording  has a  weird sample  rate, like  two times  slower than
normal.  Also note that with  the rear sound panel, recording does
not work at all.

Any input will be appreciated.  Thanks in advance,
-- 
     Jean-Baptiste Quenot
aka  John Banana   Qwerty
Don't buy the Dell E521 and C521 computers...
http://blog.caraldi.com/jbq/2006/11/30/dont-buy-the-dell-e521-and-c521-computers/


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