[kde-freebsd] Sound problem with KDE4

[David Johnson]

On Tuesday 17 February 2009 09:32:30 am Thomas Schlesinger wrote:
> Hi,
>
> I don't have sound support on KDE4 (fresh built machine).
>
> When I play a video with the dragon player or music with Juk or try to use
> notifications in Kopete or play some KDE4 games, I don't have sound.
> Playing videos with vlc (UNIX OSS audio output on /dev/dsp1.0) or xine
> (audio.device.oss_device_name:/dev/dsp, audio.device.oss_device_number:1,
> audio.device.oss_mixer_number:1)  or "cat soundfile.wav > /dev/dsp1.0"
> works just fine (the cat on /dev/dsp doesn't). I can even control the
> volume with the KDE4 mixer, so KDE4 seems to access my sound devices in
> some way.
>
> This are my sound devices (cat /dev/sndstat):
>
> FreeBSD Audio Driver (newpcm: 64bit 2007061600/amd64)
> Installed devices:
> pcm0: <HDA ATI R6xx HDMI PCM #0 Digital> at cad 0 nid 1 on hdac0 kld
> snd_hda [MPSAFE] (1p:3v/0r:0v channels default) pcm1: <HDA IDT 92HD73C1 PCM
> #0 Analog> at cad 0 nid 1 on hdac1 kld snd_hda [MPSAFE] (1p:1v/1r:1v
> channels duplex) pcm2: <HDA IDT 92HD73C1 PCM #1 Analog> at cad 0 nid 1 on
> hdac1 kld snd_hda [MPSAFE] (1p:1v/1r:1v channels duplex)
>
> I have three entries at the KDE4 Multimedia System Settings (in this order)
> and already tried to reorder them with no success: snd_hda [MPSAFE]
> (1p:1v/1r:1v channels duplex) (HDA IDT 92HD73C1 PCM #0 Analog (pcm))
> snd_hda [MPSAFE] (1p:1v/1r:1v channels duplex) (HDA IDT 92HD73C1 PCM #1
> Analog (pcm)) snd_hda [MPSAFE] (1p:1v/0r:0v channels default) (HDA ATI R600
> HDMI PCM #1 Analog (pcm))

It's the accursed HDA! Great audio chipset, but FreeBSD gives you way too many 
device.hints knobs. /dev/dsp defaults to /dev/dsp0.0, but there is a sysctl 
knob that supposedly changes this, and you can also do some virtual rewiring 
with device.hints.  Consult the snd_hda manpage

Also make sure you're running -STABLE, as a lot of HDA changes got committed 
in January.

-- 
David Johnson