At Sun, 08 Oct 2006 19:34:29 +0200, Pierre Ossman wrote: > > Hi! > > I bought some cheap ass sound card yesterday to use in my HTPC system. > Unfortunately, I cannot seem to get it to output any sound. > > The card is labeled "PC Line" but is a C-Media CM8738, i.e. snd_cmipci. > There are no error messages whatsoever, just no audio out. > > The problem only seems to affect PCM as I did some tests with a mic that > worked just fine. The mixer controls for mic playback and capture both > work and I get valid data when recording. PCM eats data at a reasonable > pace, but no sound it sent out. Also, no data is generated when I set > capture to PCM and try to loop stuff. > > I also notice two other effects, but I do not know if they're relevant. > First, the mixer setting "IEC958 In Monitor" cannot be turned off. > Second, when "IEC958 Output" is activated, mic playback is activated > unconditionally. It's weird. Possibly a new chip revision that is slightly incompatible with the olders? Check /proc/asound/cards which revision it has. Anyway, please show the current mixer state (/etc/asound.state, or a file generated via "alsactl -f somefile store"), and the register dump of /proc/asound/card0/cmipci. Takashi ------------------------------------------------------------------------- Take Surveys. Earn Cash. Influence the Future of IT Join SourceForge.net's Techsay panel and you'll get the chance to share your opinions on IT & business topics through brief surveys -- and earn cash http://www.techsay.com/default.php?page=join.php&p=sourceforge&CID=DEVDEV _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.sourceforge.net/lists/listinfo/alsa-devel
