[Pkg-alsa-devel] Bug#585488: alsa-base: The fix for bug #574593 breaks C-Media CM6501 built-in audio devices

Thu Jun 10 21:13:54 UTC 2010

Package: alsa-base
Version: 1.0.23+dfsg-1
Severity: normal
Tags: sid

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Hello,

I have recently upgraded alsa-base and on reboot found that sound had
stopped working. On investigation, it looks like the fix that was applied
for bug #574593 has caused the problem.

I have an Asus M2N-E motherboard which has an integrated C-Media CM6501
sound card, which, somewhat unusually for on-board sound, is connected
through the USB bus. By stopping snd-usb-audio from being set up as card
zero, this may have fixed the original bug but has just moved it to
people who use USB audio as their primary sound system.

I was unsure whether to request re-opening the bug or starting another,
but since the original problem was stop non-playback device from being
the default sound card and my problem is that USB audio can't be, I
thought it best to open a new bug. If it makes more sense to you to
re-open #574593 instead, please feel free to do so. Similarly, if I can
provide any further information, please do let me know and I'll add it
to the report as soon as possible.

All the best,
- -Dave.

- -- Package-specific info:
- --- Begin additional package status ---
Desired=Unknown/Install/Remove/Purge/Hold
| Status=Not/Inst/Conf-files/Unpacked/halF-conf/Half-inst/trig-aWait/Trig-pend
|/ Err?=(none)/Reinst-required (Status,Err: uppercase=bad)
||/ Name                                                         Version                                                      Description
+++-============================================================-============================================================-========================================================================================================================================
ii  libasound2                                                   1.0.23-1                                                     shared library for ALSA applications
- --- End additional package status ---
- --- Begin /proc/asound/version ---
Advanced Linux Sound Architecture Driver Version 1.0.20.
- --- End /proc/asound/version ---
- --- Begin /proc/asound/cards ---
 0 [default        ]: USB-Audio - PnP Audio Device        
                      PnP Audio Device         at usb-0000:00:02.0-7, full speed
- --- End /proc/asound/cards ---
- --- Begin /dev/snd/ listing ---
total 0
drwxr-xr-x  2 root root      60 Jun 10 21:51 by-id
drwxr-xr-x  2 root root      60 Jun 10 21:51 by-path
crw-rw----+ 1 root audio 116, 6 Jun 10 21:51 controlC0
crw-rw----+ 1 root audio 116, 5 Jun 10 21:51 pcmC0D0c
crw-rw----+ 1 root audio 116, 4 Jun 10 21:54 pcmC0D0p
crw-rw----+ 1 root audio 116, 3 Jun 10 21:51 seq
crw-rw----+ 1 root audio 116, 2 Jun 10 21:51 timer
- --- End /dev/snd/ listing ---

- -- System Information:
Debian Release: squeeze/sid
  APT prefers unstable
  APT policy: (500, 'unstable'), (500, 'testing')
Architecture: amd64 (x86_64)

Kernel: Linux 2.6.30 (SMP w/2 CPU cores)
Locale: LANG=en_GB, LC_CTYPE=en_GB (charmap=ISO-8859-1)
Shell: /bin/sh linked to /bin/bash

Versions of packages alsa-base depends on:
ii  linux-sound-base           1.0.23+dfsg-1 base package for ALSA and OSS soun
ii  lsof                       4.81.dfsg.1-1 List open files
ii  module-init-tools          3.12~pre2-3   tools for managing Linux kernel mo
ii  udev                       154-1         /dev/ and hotplug management daemo

Versions of packages alsa-base recommends:
ii  alsa-utils                    1.0.23-2   Utilities for configuring and usin

Versions of packages alsa-base suggests:
ii  alsa-oss                      1.0.17-4   ALSA wrapper for OSS applications
pn  apmd                          <none>     (no description available)
ii  oss-compat                    0.0.4+nmu3 OSS compatibility package

Versions of packages libasound2 depends on:
ii  libc6                         2.11.1-2   Embedded GNU C Library: Shared lib

- -- Configuration Files:
/etc/modprobe.d/alsa-base.conf changed:
install sound-slot-0 /sbin/modprobe snd-card-0
install sound-slot-1 /sbin/modprobe snd-card-1
install sound-slot-2 /sbin/modprobe snd-card-2
install sound-slot-3 /sbin/modprobe snd-card-3
install sound-slot-4 /sbin/modprobe snd-card-4
install sound-slot-5 /sbin/modprobe snd-card-5
install sound-slot-6 /sbin/modprobe snd-card-6
install sound-slot-7 /sbin/modprobe snd-card-7
install snd /sbin/modprobe --ignore-install snd && { /sbin/modprobe --quiet snd-ioctl32 ; /sbin/modprobe --quiet snd-seq ; }
install snd-rawmidi /sbin/modprobe --ignore-install snd-rawmidi && { /sbin/modprobe --quiet snd-seq-midi ; : ; }
install snd-emu10k1 /sbin/modprobe --ignore-install snd-emu10k1 && { /sbin/modprobe --quiet snd-emu10k1-synth ; : ; }
options bt87x index=-2
options cx88_alsa index=-2
options snd-atiixp-modem index=-2
options snd-intel8x0m index=-2
options snd-via82xx-modem index=-2
options snd-pcsp index=-2

- -- debconf information:
  alsa-base/alsactl_store_on_shutdown: always autosave

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