[Gllug] Soundcard heuristics

[Adrian McMenamin]

I have a box running Ubuntu which has a soundcard built in to the mobo
and a box with the same model of mobo running on a Fedora box. the
Fedora box plays sound, the Ubuntu one doesn't.

Is it likely that the soundcard is stuffed on the Ubuntu one? Are there
any tests I can run to see what might be wrong? Is there something I
have missed at a higher level (eg ALSA configuration - though I have
unmuted everything afaics)?


Ubuntu box: 

>From dmesg:

[4294696.497000] via82xx: Assuming DXS channels with 48k fixed sample
rate.
[4294696.497000]          Please try dxs_support=5 option
[4294696.497000]          and report if it works on your machine.
[4294696.497000]          For more details, read ALSA-Configuration.txt.

>From lspci:


0000:00:11.5 Multimedia audio controller: VIA Technologies, Inc.
VT8233/A/8235/8237 AC97 Audio Controller (rev 60)

I seem unable to get Ubuntu to play anything

On a Fedora box with the model of mobo (bought from the same shop at
more or less the same time - they are the same!). I can play sounds.

>From dmesg:

via82xx: Assuming DXS channels with 48k fixed sample rate.
         Please try dxs_support=5 option
         and report if it works on your machine.
         For more details, read ALSA-Configuration.txt.

>From lspci:

00:11.5 Multimedia audio controller: VIA Technologies, Inc.
VT8233/A/8235/8237 AC97 Audio Controller (rev 60)

On the Fedora box:

[root at dragoneye ~]# lsmod | grep snd
snd_via82xx            33025  0
gameport               21321  1 snd_via82xx
snd_ac97_codec         80829  1 snd_via82xx
snd_seq_dummy           3781  0
snd_seq_oss            42945  0
snd_seq_midi_event     10177  1 snd_seq_oss
snd_seq                78033  5
snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_pcm_oss            53105  0
snd_mixer_oss          18241  1 snd_pcm_oss
snd_pcm               112201  3 snd_via82xx,snd_ac97_codec,snd_pcm_oss
snd_timer              42437  2 snd_seq,snd_pcm
snd_page_alloc         10825  2 snd_via82xx,snd_pcm
snd_mpu401_uart        12481  1 snd_via82xx
snd_rawmidi            36321  1 snd_mpu401_uart
snd_seq_device          9165  4
snd_seq_dummy,snd_seq_oss,snd_seq,snd_rawmidi
snd                    62021  11
snd_via82xx,snd_ac97_codec,snd_seq_oss,snd_seq,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_mpu401_uart,snd_rawmidi,snd_seq_device
soundcore              12449  1 snd

On the Ubuntu box:

adrian at bossclass:~$ lsmod | grep snd
snd_mpu401              6344  0
snd_seq_dummy           3844  0
snd_seq_oss            29440  0
snd_seq_midi            8608  0
snd_seq_midi_event      6656  2 snd_seq_oss,snd_seq_midi
snd_seq                44688  6
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_via82xx            25792  1
gameport               14472  2 analog,snd_via82xx
snd_ac97_codec         72188  1 snd_via82xx
snd_pcm_oss            46368  0
snd_mixer_oss          16128  1 snd_pcm_oss
snd_pcm                78344  3 snd_via82xx,snd_ac97_codec,snd_pcm_oss
snd_timer              21764  2 snd_seq,snd_pcm
snd_page_alloc         10120  2 snd_via82xx,snd_pcm
snd_mpu401_uart         6784  2 snd_mpu401,snd_via82xx
snd_rawmidi            22816  2 snd_seq_midi,snd_mpu401_uart
snd_seq_device          8204  5
snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq,snd_rawmidi
snd                    48644  14
snd_mpu401,snd_seq_oss,snd_seq,snd_via82xx,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer,snd_mpu401_uart,snd_rawmidi,snd_seq_device
soundcore               9184  1 snd


The two kernels are (obviously) different:

Ubuntu: 
adrian at bossclass:~$ uname -a
Linux bossclass 2.6.12-9-386 #1 Mon Oct 10 13:14:36 BST 2005 i686
GNU/Linux

Fedora:
[root at dragoneye ~]# uname -a
Linux dragoneye 2.6.13-1.1532_FC4 #1 Thu Oct 20 01:30:08 EDT 2005 i686
i686 i386 GNU/Linux



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