Dear Mr. Iwai, Takashi Iwai wrote: > As mentioned in the previous mail, it should be like > > pcm.!default { > type plug > slave.pcm { > type hw > card 0 > } > } I put only those lines in my asound.conf file and I still got this output: /etc # speaker-test speaker-test 1.0.13 Playback device is default Stream parameters are 48000Hz, S16_BE, 1 channels Using 16 octaves of pink noise ALSA lib pcm_plug.c:773:(snd_pcm_plug_hw_refine_schange) Unable to find an usable access for 'default' Sample format not available for playback: Invalid argument Setting of hwparams failed: Invalid argument I put back the original ca0106 stuff at the beginning of my asound.conf file, as in pcm.ca0106 { type hw card 0 } ctl.ca0106 { type hw card 0 } pcm.!default { type plug slave.pcm { type hw card 0 } } but I still got the same error when I ran speaker-test. Should I punt and try to implement your suggested version of dma_mmap_coherent? -- Thank you, David Cullen Teligy (864) 527-1263 Office (864) 415-7063 Cell ------------------------------------------------------------------------- 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