[alsa-devel] alsactl restore: unknown hardware: ymf724f

Angel Tsankov fn42551 at fmi.uni-sofia.bg
Thu Feb 25 14:31:13 CET 2010

Jaroslav Kysela wrote:
> On Thu, 25 Feb 2010, Angel Tsankov wrote:
>> Hello,
>> I run 'alsactl restore' on a machine with 2 sound cards -- a built-in
>> Intel Corporation 82801EB/ER (ICH5/ICH5R) AC'97 Audio Controller (rev
>> 02) and a non-built-in Yamaha Corporation YMF-724F [DS-1 Audio
>> Controller] (rev 03) -- and get the following message:
>> Unknown hardware: "YMF724F" "SigmaTel STAC9700,83,84" "AC97a:83847600"
>> "0x1073" "0x000d"
>> Hardware is initialized using a guess method
>> As a consequence the volume levels of the Yamaha card do not get
>> restored to the levels stored in /etc/asound.state.  The volume levels
>> of the built-in card however are properly restored.  The asound.state
>> file has been created by executing 'alsactl store'.
>> The kernel has been built with support for ALSA.  I've built and
>> installed the kernel modules for both cards (not the ones in the
>> alsa-driver package but those that come with kernel version
>> Any ideas why alsactl cannot find the hardware it has previously
>> identified as "YMF724F", "SigmaTel STAC9700,83,84", and so on?
> The logic of alsactl is to restore the state from /etc/asound.state if it 
> is valid. It seems like the set_controls() function in alsactl/state.c 
> returns an error code for a reason.
> Could you try to compile the latest alsa-utils snapshot 
> (http://www.alsa-project.org/snapshot/) and run './alsactl -d restore' in 
> alsa-utils/alsactl directory? A warning (fail reason) should be printed.
>  					Jaroslav

I've attached a bash shell script that I used to download, configure, 
compile, and run alsactl.  I've also attached a .log file with stdout 
and stderr that I got while executing the script.

Angel Tsankov
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