Dear Mr. Iwai, I made the changes you suggested to work around the problem with mmap. However, when I run speaker-test now, I get another problem: /usr/local/src/files # 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 This is my asound.conf file: pcm.ca0106 { type hw card 0 } ctl.ca0106 { type hw card 0 } pcm.!default plughw What am I doing wrong? -- 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