In attempting to implement my proposed mixer control name changes (see " RFC: Enhance AD AC '97 mixer control names") I have encountered behavior that makes no sense to me: If module snd_ac97_codec does not create a control with the name 'PCM Playback Volume' then something else creates a control with that name. Not surprisingly, this phantom control serves no useful purpose in my environment, as it has no affect on AC '97 control registers. Configuration details: Using Fedora Core 5 kernel 2.6.18-1.2239.fc5 (i686) with the latest ALSA-driver source from Mercurial. Details: - I have ruled out the possibility that module snd_ac97_codec or snd_intel8x0 could be creating the control, because the following steps cause the control to disappear: # modprobe -r snd_intel8x0 # modprobe -r snd_ac97_codec # modprobe snd_ac97_codec # modprobe snd_intel8x0 - I have also ruled out (using calls to printk) the possibility of the control being created via calls to snd_ac97_cnew(), snd_ac97_cmute_new_stereo() or snd_ac97_cvol_new(). - The phantom control appears after booting to runlevel 3 or 5. - If removed using the above modprobe commands, the phantom control will appear after logging into a KDE session. - If removed using the above modprobe commands, the phantom control does not appear after logging into a Gnome session. Any suggestions for how I might track down the source of this phantom control would be welcome. Randy Cushman ------------------------------------------------------------------------- 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
