At Fri, 29 Jun 2007 13:36:15 +0200, Rainer Menzner wrote: > > Hi, > > my soundcard is an onboard AC97 CK804 NVidia. I use snd-intel8x0 module. > Everything works fine except recording sound. When calling > > arecord -f cd buffer.wav > > the program infinitely hangs, and an strace shows that it is a poll() > call that does not return. After interrupting, a wave file of 44 bytes > which is the header only is left. My setup is Kernel 2.6.21.3, all > ALSA-software is updated to the latest version, that is 1.0.14(a). > > In a previous setup with an older ALSA version and kernel 2.6.16.11 > recording did work with the same hardware. Now that I updated all ALSA > software, even with that older kernel version the same recording problem > came up. From that I concluded that it is somehow related to the > ALSA-lib version. I have tried to downgrade ALSA-lib down to 1.0.0 to no > avail. > > I have also made tests appropriate if this would be an interrupt problem > (using pci=noroute et al) which also did not solve the problem. > > I have scrolled though the archives of alsa-user and there have been a > few posts regarding the same problem (but with other chip sets). > However, in those threads no definitive solution of the problem has been > discussed. So I tried it again in alsa-user but did not get any feedback ... > > Now, I finally try this developer list. Your comments and help are much > appreciated. Let me know if you need further info. I'm not a Linux > system programmer or specialist, but I would be willing to do some > debugging if somebody explains what to check. Most likely a mixer configuration. For example, it's now set up to record from the SPDIF input or so. You can check the detailed configuration from the generated file via "alsactl -f somefile store". Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
