Re: ALSA Problems
On Tuesday 05 October 2004 03:39, Jason Martens wrote:
> I have a debian testing system that will be my mythtv, as soon as I can
> get the sound working. I had it working previously with Fedora Core 1,
> but decided to move to a much better distro.
>
> I think I have alsa configured correctly, but for some reason, it
> doesn't detect the sound card. My motherboard (Abit KV7, KT 600) has
> built-in audio, which is detected by Alsaconf as a via82xx
> VT8233/A/8235/8237 AC97 Audio Controller. It detects it, and adds (what
> I think) are the proper modules to /etc/modprobe.d/sound. Here is a
> listing of my loaded snd modules:
There are two cards here, via82xx and bt87x
Both exist in alsa-drivers
This is what I get from lsmod
snd_pcm_oss 57480 0
snd_mixer_oss 19104 1 snd_pcm_oss
snd_via82xx 26468 2
snd_ac97_codec 70212 1 snd_via82xx
snd_pcm 95972 4 snd_pcm_oss,snd_via82xx
snd_timer 23620 1 snd_pcm
gameport 3552 1 snd_via82xx
snd_mpu401_uart 6880 1 snd_via82xx
snd_rawmidi 21984 1 snd_mpu401_uart
snd_seq_device 6856 1 snd_rawmidi
snd 56132 11
snd_pcm_oss,snd_mixer_oss,snd_via82xx,snd_ac97_codec,snd_pcm,snd_timer,snd_mpu401_uart,snd_rawmidi,snd_seq_device
soundcore 7328 1 snd
snd_page_alloc 9672 2 snd_via82xx,snd_pcm
Also ensure that only ALSA is enabled in the kernel, using 2.4.xx just enable
sound support, nothing else, and use the alsa drivers from the alsa-project
you might have to modprobe snd_pcm_oss to get oss emulation
With 2.6.x kernel they are supposed to be built in but I'm damned if I can get
them to work...
soundcore is loading in the 'old' drivers as well as the alsa ones, eg
via82cxxx is an 'old' driver, snd_via82xx is alsa.
>
> mythtv:/proc/asound# lsmod | grep snd
> snd_mixer_oss 20416 0
> snd_via82xx 30820 0
> snd_ac97_codec 70660 1 snd_via82xx
> gameport 5376 1 snd_via82xx
> snd_mpu401_uart 8896 1 snd_via82xx
> snd_rawmidi 26496 1 snd_mpu401_uart
> snd_seq_device 8712 1 snd_rawmidi
> snd_bt87x 15304 0
> snd_pcm 101920 2 snd_via82xx,snd_bt87x
> snd_timer 27460 1 snd_pcm
> snd 60132 10
> snd_mixer_oss,snd_via82xx,snd_ac97_codec,snd_mpu401_uart,snd_rawmidi,snd_se
>q_device,snd_bt87x,snd_pcm,snd_timer snd_page_alloc 12168 3
> snd_via82xx,snd_bt87x,snd_pcm
> soundcore 11168 5 snd,bttv,via82cxxx_audio,sound
>
> However, it can't detect any cards:
> mythtv:/proc/asound# cat cards
> --- no soundcards ---
>
> All alsa commands fail, and I get nothing out of my speakers. I'm not
> sure what to try next, any pointers would be greatly appreciated.
>
> Thanks,
> Jason
--
-----------------
Bob Hutchinson
Midwales dot com
-----------------
Reply to: