** Description changed:
Ubuntu 10.04 LTS - Lucid Lynx
cx88_alsa, usb-audio
I use an USB-audio-interface and a cx88-TV-card.
Out of the box sound doesn't work with many applications like vlc or zapping
because there is no alsa-default-device specified. No sound can be heared.
(Other applications, totem for instance, work.)
Some applications throw errors not finding a mixer device. For example
alsamixer does so if started without a command-line-parameter specifying the
device.
The reason can be found in /etc/modprobe.d/alsa-base.conf
The following section is to blame:
# Prevent abnormal drivers from grabbing index 0
options bt87x index=-2
options cx88_alsa index=-2
options saa7134-alsa index=-2
options snd-atiixp-modem index=-2
options snd-intel8x0m index=-2
options snd-via82xx-modem index=-2
options snd-usb-audio index=-2
options snd-usb-us122l index=-2
options snd-usb-usx2y index=-2
options snd-usb-caiaq index=-2
If there are only those "abnormal drivers" in use alsa starts counting the
devices by 1 instead of zero.
Therefore there is no ALSA-default-device causing the mentioned problems.
Workaround: Uncomment the appropriate line. For me it's the usb-audio-
line
-
- apport-data with workaround:
---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
- card 0: Audio [USB Audio], device 0: USB Audio [USB Audio]
+ card 1: Audio [USB Audio], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
- /dev/snd/controlC0: video 1474 F.... pulseaudio
- /dev/snd/controlC1: video 1474 F.... pulseaudio
- Card0.Amixer.info:
- Card hw:0 'Audio'/'USB Audio at usb-0000:00:10.0-1, full speed'
+ /dev/snd/controlC2: video 1702 F.... pulseaudio
+ /dev/snd/controlC1: video 1702 F.... pulseaudio
+ Card1.Amixer.info:
+ Card hw:1 'Audio'/'USB Audio at usb-0000:00:10.0-1, full speed'
Mixer name : 'USB Mixer'
Components : 'USB145f:0090'
Controls : 12
Simple ctrls : 7
- Card1.Amixer.info:
- Card hw:1 'CX8811'/'Conexant CX8811 at 0xec000000'
+ Card2.Amixer.info:
+ Card hw:2 'CX8811'/'Conexant CX8811 at 0xec000000'
Mixer name : 'CX88'
Components : ''
Controls : 3
Simple ctrls : 2
DistroRelease: Ubuntu 10.04
NonfreeKernelModules: nvidia
Package: alsa-base 1.0.22.1+dfsg-0ubuntu3
PackageArchitecture: all
ProcEnviron:
LANGUAGE=de_DE:de:en_GB:en
PATH=(custom, no user)
LANG=de_DE.utf8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-25.44-generic 2.6.32.21+drm33.7
Tags: lucid
Uname: Linux 2.6.32-25-generic i686
UserGroups: adm admin audio cdrom dialout dip fax floppy mysql mythtv plugdev
sambashare scanner tape
dmi.bios.date: 10/29/2004
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: 6.00 PG
dmi.board.name: MS-6734
dmi.board.vendor: MICRO-STAR INTERNATIONAL CO., LTD
dmi.chassis.type: 3
dmi.modalias:
dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd10/29/2004:svnMICRO-STARINTERNATIONALCO.,LTD:pnKM400-8235:pvr:rvnMICRO-STARINTERNATIONALCO.,LTD:rnMS-6734:rvr:cvn:ct3:cvr:
dmi.product.name: KM400-8235
dmi.sys.vendor: MICRO-STAR INTERNATIONAL CO., LTD
- ---
+
+ apport-data with workaround:
+ ---
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.21.
AplayDevices:
**** List of PLAYBACK Hardware Devices ****
- card 1: Audio [USB Audio], device 0: USB Audio [USB Audio]
+ card 0: Audio [USB Audio], device 0: USB Audio [USB Audio]
Subdevices: 1/1
Subdevice #0: subdevice #0
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
- /dev/snd/controlC2: video 1702 F.... pulseaudio
- /dev/snd/controlC1: video 1702 F.... pulseaudio
- Card1.Amixer.info:
- Card hw:1 'Audio'/'USB Audio at usb-0000:00:10.0-1, full speed'
+ /dev/snd/controlC0: video 1474 F.... pulseaudio
+ /dev/snd/controlC1: video 1474 F.... pulseaudio
+ Card0.Amixer.info:
+ Card hw:0 'Audio'/'USB Audio at usb-0000:00:10.0-1, full speed'
Mixer name : 'USB Mixer'
Components : 'USB145f:0090'
Controls : 12
Simple ctrls : 7
- Card2.Amixer.info:
- Card hw:2 'CX8811'/'Conexant CX8811 at 0xec000000'
+ Card1.Amixer.info:
+ Card hw:1 'CX8811'/'Conexant CX8811 at 0xec000000'
Mixer name : 'CX88'
Components : ''
Controls : 3
Simple ctrls : 2
DistroRelease: Ubuntu 10.04
NonfreeKernelModules: nvidia
Package: alsa-base 1.0.22.1+dfsg-0ubuntu3
PackageArchitecture: all
ProcEnviron:
LANGUAGE=de_DE:de:en_GB:en
PATH=(custom, no user)
LANG=de_DE.utf8
SHELL=/bin/bash
ProcVersionSignature: Ubuntu 2.6.32-25.44-generic 2.6.32.21+drm33.7
Tags: lucid
Uname: Linux 2.6.32-25-generic i686
UserGroups: adm admin audio cdrom dialout dip fax floppy mysql mythtv plugdev
sambashare scanner tape
dmi.bios.date: 10/29/2004
dmi.bios.vendor: Phoenix Technologies, LTD
dmi.bios.version: 6.00 PG
dmi.board.name: MS-6734
dmi.board.vendor: MICRO-STAR INTERNATIONAL CO., LTD
dmi.chassis.type: 3
dmi.modalias:
dmi:bvnPhoenixTechnologies,LTD:bvr6.00PG:bd10/29/2004:svnMICRO-STARINTERNATIONALCO.,LTD:pnKM400-8235:pvr:rvnMICRO-STARINTERNATIONALCO.,LTD:rnMS-6734:rvr:cvn:ct3:cvr:
dmi.product.name: KM400-8235
dmi.sys.vendor: MICRO-STAR INTERNATIONAL CO., LTD
--
no default ALSA-device
https://bugs.launchpad.net/bugs/650665
You received this bug notification because you are a member of Ubuntu
Bugs, which is subscribed to Ubuntu.
--
ubuntu-bugs mailing list
[email protected]
https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
