Hi Elimar, many thanks for your quick reply.
On Sunday 06 April 2014 14:09:18 Elimar Riesebieter wrote: > * Rainer Dorsch <m...@bokomoko.de> [2014-04-06 11:00 +0200]: > > Hi, > > > > I have two usb devices on my system, which register with the snd_usb_audio > > module, a USB Headset and a USB webcam (has a microphone built-in). I use > > > > options snd-usb-audio index=-2 > > > > in modprobe.d to keep the usb devices away from card index 0, since I want > > to be snd_hda_intel the default. > > Sounds somewhat different than in your bugreport. I decided to try without pulseaudio. Pulseaudio did not really solve issues (flashplayer was still playing through card 0) and it did not allow to play sound on two cards concurrently.... > > That works well as long as I do not plug in the USB webcam. If I plug in > > the USB webcam, the webcam grabs card index 0. > > > > Does anybody understand why that is? > > > > Here are some more detailed data (the usb device asr both from Logitech): > > > > blackbox:~# lsusb > > Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > > Bus 008 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > > Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > > Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > > Bus 001 Device 006: ID 046d:0825 Logitech, Inc. Webcam C270 > > Bus 001 Device 005: ID 046d:0a44 Logitech, Inc. > > Bus 001 Device 004: ID 04b4:6560 Cypress Semiconductor Corp. CY7C65640 > > USB-2.0 "TetraHub" > > Bus 001 Device 003: ID 0781:5567 SanDisk Corp. Cruzer Blade > > Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub > > Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > > Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > > Bus 003 Device 002: ID 046d:c05b Logitech, Inc. M-U0004 810-001317 [B110 > > Optical USB Mouse] > > Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub > > blackbox:~# cat /proc/asound/cards > > > > 0 [U0x46d0x825 ]: USB-Audio - USB Device 0x46d:0x825 > > > > USB Device 0x46d:0x825 at usb-0000:00:1a.7-5.4, high > > > > speed > > > > 1 [Headset ]: USB-Audio - Logitech USB Headset > > > > Logitech Logitech USB Headset at > > usb-0000:00:1a.7-5.1, > > > > full speed > > > > 2 [Intel ]: HDA-Intel - HDA Intel > > > > HDA Intel at 0xfe7f4000 irq 45 > > > > blackbox:~# cat /proc/asound/modules > > > > 0 snd_usb_audio > > 1 snd_usb_audio > > 2 snd_hda_intel > > Create as root a file /etc/modprobe.d/alsa_local.conf: > > ### > options snd slots=snd-hda-intel > options snd-usb-audio index=1,2 vid=0x46d,0x46d pid=0xa44,0x825 > ### > > > This should preserve the first soundslot for your intel card. Your > headset (ID 046d:0a44) will become index 1 and your webcam (ID > 046d:0825) index 2 though. > > See http://alsa.opensrc.org/MultipleCards Indeed that makes a lot of sense. I will try your suggestion, fixing the USB devices is nice. I will try that. I tried already options snd-usb-audio index=-2,-2 which made at least snd_hda_intel back to card index 0. Thanks, Rainer -- Rainer Dorsch http://bokomoko.de/ -- To UNSUBSCRIBE, email to debian-user-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org Archive: https://lists.debian.org/9444733.9xiOi4qevB@blackbox
