[linux-audio-user] since recompilation of 2.6.18-rt3 I got this: alsamixer: function snd_ctl_open failed for default: Invalid argument

Gerhard Gaußling ggrubbish at web.de
Mon Oct 2 06:15:16 EDT 2006


Hello,

Since Yesterday I got these errors, but with gnome-alsamixer everything 
is fine, and I can hear sound etc.

$ amixer
amixer: Mixer attach default error: Invalid argument

$ alsamixer

alsamixer: function snd_ctl_open failed for default: Invalid argument

I patched 2.6.18 with Ingo Molnars rt patch 2.6.18-rt3.
This worked flawlessy.
Yesterday I recompiled that kernel without changing anything in spite of 
the nvidia beta driver. I had to leave  make-kpkg kernel-image out, and 
do modules-image only, I guess :(

$ dpkg -l *nvidia* |grep ^ii
ii  nvidia-glx                       1.0.9625+2.6.18-rt3                 
NVIDIA binary XFree86 4.x/X.Org driver
ii  nvidia-glx-dev                   1.0.9625+2.6.18-rt3                 
NVIDIA binary XFree86 4.x/X.Org driver devel
ii  nvidia-kernel-2.6.18-rt3         1.0.9625-0ubuntu3+1                 
NVIDIA binary kernel module for Linux 2.6.18
ii  nvidia-kernel-common             20051028+1                          
NVIDIA binary kernel module common files
ii  nvidia-kernel-source             1.0.9625+2.6.18-rt3                 
NVIDIA binary kernel module source

$ lsmod|egrep "(snd|sound)"|grep mixer
snd_mixer_oss          20608  2 snd_pcm_oss
snd                    69824  14 
snd_seq_oss,snd_seq,snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_mpu401,snd_mpu401_uart,snd_rawmidi,snd_seq_device,snd_pcm,snd_timer

$ modprobe -l|grep mixer
/lib/modules/2.6.18-rt3/kernel/sound/core/oss/snd-mixer-oss.ko
/lib/modules/2.6.18-rt3/kernel/drivers/media/video/tvmixer.ko

$ modinfo soundcore
filename:       /lib/modules/2.6.18-rt3/kernel/sound/soundcore.ko
[...]
vermagic:       2.6.18-rt3 SMP preempt mod_unload gcc-4.0

$ uname -a
Linux ubuntu 2.6.18-rt3 #1 SMP PREEMPT Sun Oct 1 21:14:11 CEST 2006 
x86_64 GNU/Linux

dpkg -l  gnome-alsamixer alsamixergui alsa-utils
ri  alsa-utils    1.0.10-1ubuntu14
ii  alsamixergui    0.9.0rc2-1-9
ii  gnome-alsamixer  0.9.6-3   




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