Am Dienstag, den 13.03.2012, 14:32 +0100 schrieb Takashi Iwai:
At Tue, 13 Mar 2012 10:52:21 +0100, Takashi Iwai wrote:
At Mon, 12 Mar 2012 22:09:35 +0100, Christian Esken (KDE) wrote:
Hello,
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 :
- "Creative X-Fi" does not have any Enum's. alsamixer does not show
Enums's. amixer lists "penum" for ALL Simple mixer controls.
- "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.
I committed the fix to git tree now. The fix patch is below.
I compiled and installed the alsa-lib from git, and the existing old executable (1.0.24.2 from openSUSE 12.1) now shows the correct values. I also tested with amixer from git, and it also works for me.
Thanks for the quick fix.
Christian