[Alsa-user] alsamixer: function snd_ctl_open failed for default: Permission denied

[Sebastian R. <itl...@ra...>]

Hi alsa users,    
    
I am trying to get a  mentioned card to work. unable to find the error.    
So I downloaded the alsa-driver-1.0.9.tar.bz2 archive to have the latest    
drivers.     
  
lspci:  
0000:00:02.7 Multimedia audio controller: Silicon Integrated Systems [SiS]  
Sound Controller (rev a0)  
the suse hardware config tool says it is the following model:  
  Model: Fujitsu Siemens Sound Controller  
Device identifier (spec): 69699     
Device identifier: 94226  
  
# lsmod | grep snd    
snd_intel8x0           37184  0    
snd_ac97_codec         83452  1 snd_intel8x0    
snd_pcm                97412  2 snd_intel8x0,snd_ac97_codec    
snd_timer              29828  1 snd_pcm    
snd                    60260  4 snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer   

soundcore              13664  1 snd    
snd_page_alloc         14084  2 snd_intel8x0,snd_pcm    
   
but when I start alsamixer I get:   
   
alsamixer: function snd_ctl_open failed for default: Permission denied  
When running it through strace, grepping for open I see this:    
 
# strace alsamixer 2>&1 | grep open 
open("/etc/ld.so.cache", O_RDONLY)      = 3 
open("/usr/lib/libncursesw.so.5", O_RDONLY) = 3 
open("/usr/lib/libasound.so.2", O_RDONLY) = 3 
open("/lib/tls/libm.so.6", O_RDONLY)    = 3 
open("/lib/libdl.so.2", O_RDONLY)       = 3 
open("/lib/tls/libpthread.so.0", O_RDONLY) = 3 
open("/lib/tls/libc.so.6", O_RDONLY)    = 3 
open("/lib/libresmgr.so.0.9.8", O_RDONLY) = 3 
open("/usr/share/alsa/alsa.conf", O_RDONLY) = 3 
open("/dev/snd/controlC0", O_RDONLY)    = -1 ENODEV (No such device) 
sendmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"open -ro /dev/snd/controlC0\n", 
28}], msg_controllen=0, msg_flags=0}, 0) = 28 
open("/dev/snd/controlC0", O_RDWR)      = -1 ENODEV (No such device) 
sendmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"open  /dev/snd/controlC0\n", 25}], 
msg_controllen=0, msg_flags=0}, 0) = 25 
open("/dev/snd/controlC0", O_RDONLY)    = -1 ENODEV (No such device) 
sendmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"open -ro /dev/snd/controlC0\n", 
28}], msg_controllen=0, msg_flags=0}, 0) = 28 
open("/dev/snd/controlC0", O_RDWR)      = -1 ENODEV (No such device) 
sendmsg(3, {msg_name(0)=NULL, msg_iov(1)=[{"open  /dev/snd/controlC0\n", 25}], 
msg_controllen=0, msg_flags=0}, 0) = 25 
write(2, "alsamixer: function snd_ctl_open"..., 71alsamixer: function 
snd_ctl_open failed for default: Permission denied 
 
but an  ls -l /dev/snd/controlC* 
crwxrwxrwx  1 root audio 116,   0 2005-03-19 20:36 /dev/snd/controlC0 
crwxrwxrwx  1 root audio 116,  32 2005-03-19 20:36 /dev/snd/controlC1 
crwxrwxrwx  1 root audio 116,  64 2005-03-19 20:36 /dev/snd/controlC2 
crwxrwxrwx  1 root audio 116,  96 2005-03-19 20:36 /dev/snd/controlC3 
crwxrwxrwx  1 root audio 116, 128 2005-03-19 20:36 /dev/snd/controlC4 
crwxrwxrwx  1 root audio 116, 160 2005-03-19 20:36 /dev/snd/controlC5 
crwxrwxrwx  1 root audio 116, 192 2005-03-19 20:36 /dev/snd/controlC6 
crwxrwxrwx  1 root audio 116, 224 2005-03-19 20:36 /dev/snd/controlC7 
 
I chmod it to 777 just to make sure that not the file permissions are the 
culprit. 
 
what do I miss, I searched google for my problem but most of the things I 
found people with other soundcards that only mixed up the permissions 
somewhere. 
 
also tried different combinations of the parameter, especially the buggy_irq, 
and xbox. 
 
in another post I found someone with the same card. he stated that the alsa 
and oss drivers do not work together, therefore I only use the alsa drivers. 
 
Any hint how to proceed? 
 
kind regards 
sebastian