At Mon, 17 Sep 2007 07:32:46 +0200, Maxim Levitsky wrote: > > On Monday 17 September 2007 07:21:03 Giovanni Maruzzelli wrote: > > Hi all, > > > > I hope someone can give me an hint on this problem, that is stopping me. > > > > On my new laptop (asus f5v) dsnoop do not works, neither I can record > > at the same moment with more than one application. The second > > application that want to use the dsnoop, fail to open it. > > > > I'm using Ubuntu 7.04 fully updated. > > > > lspci gives: > > 00:0f.0 Audio device: Silicon Integrated Systems [SiS] Azalia Audio Controller > > > > cat /proc/asound/card0/codec#* | grep Codec gives: > > Codec: Realtek ALC660-VD > > Codec: Motorola Si3054 > > > > I've upgraded driver, lib, and utils to 1.0.14 but it do not helped. > > > > I've put at the end of /etc/modprobe.d/alsa-base > > options snd-hda-intel model=3stack-660 > > > > I can always reproduce the behavior, for eg: > > > > root@ubuntu-lap:~# arecord -Ddefault ciao.wav & > > [1] 6923 > > root@ubuntu-lap:~# Recording WAVE 'ciao.wav' : Unsigned 8 bit, Rate > > 8000 Hz, Mono > > > > root@ubuntu-lap:~# arecord -Ddefault ciao2.wav & > > [2] 6926 > > root@ubuntu-lap:~# ALSA lib pcm_dsnoop.c:606:(snd_pcm_dsnoop_open) > > unable to open slave > > arecord: main:545: audio open error: Invalid argument > > > > [2]+ Exit 1 arecord -Ddefault ciao2.wav > > > > I can give any additional info is needed. > > > > Thank you all in advance, > > > > Giovanni Maruzzelli > > _______________________________________________ > > Alsa-devel mailing list > > Alsa-devel@xxxxxxxxxxxxxxxx > > http://mailman.alsa-project.org/mailman/listinfo/alsa-devel > > > > Hi, > > I was also hit by this problem > > To fix this you need to open /usr/share/alsa/pcm/dsnoop.conf > and change > > @args.SUBDEV { > type string > default -1 > > to > > @args.SUBDEV { > type string > default 0 > > I was told that this is a feature of alsa, not bug, I don't know. > > the above will make dsnoop to record from hw:0,0 > > Also, I bet that your hardware can record more that one stream a time. > So you can also try recording from hw:0,1 or hw:0,2 > > you can check how many streams can be recording at same time in /proc/asound/Intel/pcm0c/info > look at subdevices_count > > Each stream can have its own input source, so check your mixer to make sure that > each stream records what you want, eg: records from same source, or not, > is enabled or not, and has enough gain. Ah, actually it should be counted as a bug. The -1 works well for the devices with a single substream but not for the devices with multiple substreams. Should be 0 for dmix/dsnoop. I'll fix alsa-lib HG tree now. thanks, Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
