Alsa detects modem as a sound card?

[David Johnson]

I had a problem where I wasn't getting any sound out of Ubuntu. All the mixer
options were OK but there was just no output.

I wondered if this was related to my on-board modem (SiS chipset) which has a
habit of being detected as a mixer device, so I rebooted and disabled it in the
BIOS. On reboot, my sound was working. I wonder if Alsa had detected my modem as
a mixer device and set it to be the default audio device or something like that?

My actual sound card is a SIS SI7012 using the snd_intel8x0 driver. Prior to
dist-upgrading to Hoary, sound was working fine.

I have had a similar bug with Debian Sarge on different hardware, where the
modem was being detected by Alsa as an empty mixer. This didn't cause the sound
to stop working (it just caused mixer apps to crash), but it might have done if
it had been set as the default device. This bug report may be useful:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=271653&archive=yes

Let me know what further information is needed.

[Matt Zimmerman (mdz)]

Send a copy of the output from the follow commands:

- lsmod
- lspci
- dmesg
- aplay -l

This is probably a duplicate of bug #8050; you may also wish to refer to bug #8744.

[David Johnson (dj-david-web)]

Here's my lsmod output:

Module Size Used by
proc_intf 3876 0
freq_table 3972 0
cpufreq_userspace 5112 0
cpufreq_ondemand 6012 0
cpufreq_powersave 1600 0
ds 18276 2
button 6448 0
ac 4644 0
battery 9188 0
ipv6 256352 10
af_packet 21960 2
yenta_socket 20960 0
pcmcia_core 67780 2 ds,yenta_socket
8139cp 20288 0
8139too 25664 0
mii 4864 2 8139cp,8139too
crc32 4160 2 8139cp,8139too
ehci_hcd 31012 0
ohci_hcd 20708 0
usbcore 116036 4 ehci_hcd,ohci_hcd
snd_intel8x0 34348 1
gameport 4416 1 snd_intel8x0
snd_mpu401_uart 7648 1 snd_intel8x0
snd_rawmidi 24420 1 snd_mpu401_uart
snd_seq_device 7848 1 snd_rawmidi
snd_intel8x0m 18152 1
snd_ac97_codec 70448 2 snd_intel8x0,snd_intel8x0m
snd_pcm_oss 51912 0
snd_mixer_oss 19552 2 snd_pcm_oss
snd_pcm 95176 3 snd_intel8x0,snd_intel8x0m,snd_pcm_oss
snd_timer 24932 1 snd_pcm
snd 54916 12
snd_intel8x0,snd_mpu401_uart,snd_rawmidi,snd_seq_device,snd_intel8x0m,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
soundcore 9984 2 snd
snd_page_alloc 9736 3 snd_intel8x0,snd_intel8x0m,snd_pcm
ohci1394 34660 0
ieee1394 111416 1 ohci1394
pciehp 95780 0
shpchp 99108 0
pci_hotplug 33456 2 pciehp,shpchp
sis_agp 7972 1
agpgart 33608 1 sis_agp
floppy 59024 0
irtty_sir 8832 0
sir_dev 18796 1 irtty_sir
irda 191392 2 irtty_sir,sir_dev
crc_ccitt 1888 1 irda
pcspkr 3464 0
rtc 12440 0
md 47532 0
dm_mod 57756 1
parport_pc 36580 1
lp 10600 0
parport 40584 2 parport_pc,lp
ide_cd 41536 0
cdrom 39676 1 ide_cd
evdev 9312 0
mousedev 11288 1
tsdev 7488 0
psmouse 24332 0
ext3 122792 1
jbd 62264 1 ext3
mbcache 8964 1 ext3
ide_generic 1280 0
sis5513 16552 1
ide_disk 19968 3
ide_core 139248 4 ide_cd,ide_generic,sis5513,ide_disk
unix 27988 760
thermal 13064 0
processor 17288 1 thermal
fan 3812 0
fbcon 39264 0
font 8160 1 fbcon
vesafb 6592 0
cfbcopyarea 3776 1 vesafb
cfbimgblt 2880 1 vesafb
cfbfillrect 3456 1 vesafb

My lspci output:

0000:00:00.0 Host bridge: Silicon Integrated Systems [SiS] 650/M650 Host (rev 80)
0000:00:01.0 PCI bridge: Silicon Integrated Systems [SiS] Virt...

[Matt Zimmerman (mdz)]

This bug has been marked as a duplicate of bug 8744.

[Matt Zimmerman (mdz)]

This is more appropriately a duplicate of bug #8050, since if your "real" sound
device were detected ahead of the modem, it would fix your problem

This bug has been marked as a duplicate of bug 8050.