[alsa-devel] amixer shows capability "penum" on every Simple mixer control
tiwai at suse.de
Tue Mar 13 10:52:21 CET 2012
At Mon, 12 Mar 2012 22:09:35 +0100,
Christian Esken (KDE) wrote:
> when I run amixer it shows the capability "penum" on nearly every
> Simple mixer control.
> I posted the bug report
> https://bugtrack.alsa-project.org/alsa-bug/view.php?id=5496 , but
> Raymond asked me to report it on this mailing list ("as it is related to
> this patch 6d511eefa05878abee9f8b9145697230de605200 Implements support
> for capture/playback enums.").
> I posted details for the following two examples in
> https://bugtrack.alsa-project.org/alsa-bug/view.php?id=5496 :
> 1) "Creative X-Fi" does not have any Enum's. alsamixer does not show
> Enums's. amixer lists "penum" for ALL Simple mixer controls.
> 2) "HDA ATI SB" has no penum's, only 3 cenum's. alsamixer shows it
> correctly, but amixer disagrees and shows penum for NEARLY ALL Simple
> mixer controls (except for those with cpability "cenum").
> I found this as I received several bug reports for KMix with "absurd"
> amixer output. I could perceive from those bug report that the bug is
> affecting a lot (or all?) sound cards.
Looks like a bug in alsa mixer abstraction, indeed.
Will take a look at it later.
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