Adam Jones wrote:

>On 23-Feb-02, Ola Andersson wrote:
>
>>When I start Muse (a midi sequenser) I get
>>
>>ALSA lib pcm_hw.c:597:(snd_pcm_hw_open) open /dev/snd/pcmC0D0p failed:
>>tkomst nekas ("tkomst nekas" meens "Access denied")
>>
>>I don't seem to be able to play sound with ALSA (only the OSS 
>>compatibility seem to work)
>>
>
>This sounds like a file permissions problem.  You probably have
>permissions to write to /dev/dsp but not to /proc/asound/dev/*
>
The other way around....
[root@ola etc]# ls -l /dev/dsp
lr-xr-xr-x    1 root     root            9 feb 24 17:13 /dev/dsp -> 
sound/dsp
[root@ola etc]# ls -l /proc/asound/dev/*
crw-rw-rw-    1 root     root     116,   0 feb 24 19:44 
/proc/asound/dev/controlC0
crw-rw-rw-    1 root     root     116,   4 feb 24 19:44 
/proc/asound/dev/hwC0D0
crw-rw-rw-    1 root     root     116,   8 feb 24 19:44 
/proc/asound/dev/midiC0D0
crw-rw-rw-    1 root     root     116,   9 feb 24 19:44 
/proc/asound/dev/midiC0D1
crw-rw-rw-    1 root     root     116,  10 feb 24 19:44 
/proc/asound/dev/midiC0D2
crw-rw-rw-    1 root     root     116,  24 feb 24 19:44 
/proc/asound/dev/pcmC0D0c
crw-rw-rw-    1 root     root     116,  16 feb 24 19:44 
/proc/asound/dev/pcmC0D0p
crw-rw-rw-    1 root     root     116,  25 feb 24 19:44 
/proc/asound/dev/pcmC0D1c
crw-rw-rw-    1 root     root     116,  26 feb 24 19:44 
/proc/asound/dev/pcmC0D2c
crw-rw-rw-    1 root     root     116,  19 feb 24 19:44 
/proc/asound/dev/pcmC0D3p
crw-rw-rw-    1 root     root     116,   1 feb 24 19:44 /proc/asound/dev/seq
crw-rw-rw-    1 root     root     116,  33 feb 24 19:44 
/proc/asound/dev/timer
[root@ola etc]#


>
>Try using the snd_device_uid= and snd_device_gid= options to the snd
>module in modules.conf.  (Perhaps make a "sound" group in /etc/group,
>put yourself in it, and use snd_device_gid=<id of sound group>)  Then do
>a "depmod -a" and reload the sound modules.
>
I already have a group "audio" with number 81. I added option 
snd_device_gui=81 to modules.conf and rebooted my system. Still access 
denied.

Any other known pitfalls?

btw, running muse as root gets me a litle bit further. No Access denied, 
but otoh no sound when playing a midifile....

/Ola A



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