Last week I sent out the message below trying to describe my problems with a
reinstallation of Debian sid on my laptop. After working it quite a bit
more, I THINK it may actually be a devfs problem. I feel like I'm missing
something very simple, and am sure I'll be embarrassed I didn't think of it
when it's solved! Here are my symptoms:
The modules still get the error message(s) first described (see below) and
still stay loaded. I am able to use alsamixer and play files with "aplay"
as root only but not my audio group-priviledged user (I get Permission
Denied messages). I still don't have links like /dev/dsp or /dev/mixer, but
I do have a /dev/snd directory that looks like:
# ls -l /dev/snd
total 0
crw-rw---- 1 root audio 116, 0 1969-12-31 18:00 controlC0
crw-rw---- 1 root audio 116, 32 1969-12-31 18:00 controlC1
crw-rw---- 1 root audio 116, 64 1969-12-31 18:00 controlC2
crw-rw---- 1 root audio 116, 96 1969-12-31 18:00 controlC3
crw-rw---- 1 root audio 116, 128 1969-12-31 18:00 controlC4
crw-rw---- 1 root audio 116, 160 1969-12-31 18:00 controlC5
crw-rw---- 1 root audio 116, 192 1969-12-31 18:00 controlC6
crw-rw---- 1 root audio 116, 224 1969-12-31 18:00 controlC7
crw-rw---- 1 root audio 116, 8 1969-12-31 18:00 midiC0D0
crw-rw---- 1 root audio 116, 24 1969-12-31 18:00 pcmC0D0c
crw-rw---- 1 root audio 116, 16 1969-12-31 18:00 pcmC0D0p
crw-rw---- 1 root audio 116, 17 1969-12-31 18:00 pcmC0D1p
crw-rw---- 1 root audio 116, 18 1969-12-31 18:00 pcmC0D2p
crw-rw---- 1 root audio 116, 33 1969-12-31 18:00 timer
With all the searching I've done over the last 2-3 weeks, I can't find a
list of devices that should be in there. All devfs/devfsd threads that I've
seen only have talked about the items at the end of my previous email -
nothing mentioning /dev/dsp at all. Does /dev/dsp link against on of the
pcm entries or should there be a dsp device in this list too?
I do have a /proc/asound/ directory and everything looks to be OK in there.
Other than that, I still get the cs46xx errors on the module load and as
touched above, my "audio" group user can't open a mixer or aplay:
$ alsamixer
alsamixer: function snd_ctl_open failed for default: Permission denied
$ aplay
aplay: main:480: audio open error: Permission denied
The root user can set the mixer and play sound files fine, even though
everything in the /dev directory relating to sound has the "audio" group
read/write permissions set (see above). For the heck of it I tried changing
ownership of all sound-related devices in /dev to my user (gweber), but that
didn't help either.
# groups gweber
gweber: gweber disk cdrom audio src video staff oracle
Thanks in advance for any help you can offer!!!
Geoff Weber
[EMAIL PROTECTED]
-----Original Message-----
From: Weber, Geoffrey M.
Sent: Friday, 11 July, 2003 13:27
To: '[EMAIL PROTECTED]'
Subject: Problem with Alsa 0.9.4 with IBM Thinkpad A22e (cs46xx module)
Hello,
I have been using Alsa for a couple of years with different Linux installs
(primarily Debian unstable) on my home and laptop machines, and for over a
year with this particular laptop (IBM Thinkpad A22e) without any major
difficulties. I have done quite a few installations on my own and others'
machines with the same basic configuration - compiled kernel, Alsa compiled
as modules, etc.
However, due to a recent harddrive crash on my laptop I was forced to
reinstall my system, and that's when I started running into some
difficulties. I have not been able to find any relevant help online
directly related to this problem, so am turning to this list as a result
(BTW - I had been keeping fairly well up-to-date on the alsa drivers
(0.9alpha through 0.9.3 I believe), but with the new install I had moved to
0.9.4). What I am now seeing on bootup is:
ALSA ../../alsa-kernel/pci/cs46xx/cs46xx_lib.c:416:cs46xx: failure waiting
for FIFO command to complete
ALSA ../../alsa-kernel/pci/cs46xx/cs46xx_lib.c:167:AC'97 read problem
(ACSTS_VSTS), codec_index 0, reg = 0x7e
...and when I try to stop and start Alsa manually I get the following:
ALSA ../../alsa-kernel/pci/cs46xx/cs46xx_lib.c:416:cs46xx: failure waiting
for FIFO command to complete
The modules DO stay loaded, but I only get dmmidi and
midi00 devices in the /dev/sound directory (no
/dev/dsp link or other device entries in /dev/sound).
Here are some relevant commands and their output:
# lsmod
Module Size Used by Not tainted
snd-cs46xx 70888 0
snd-pcm 62500 0 [snd-cs46xx]
snd-timer 15364 0 [snd-pcm]
snd-ac97-codec 40072 0 [snd-cs46xx]
snd-page-alloc 5116 0 [snd-cs46xx snd-pcm]
snd-rawmidi 14048 0 [snd-cs46xx]
snd-seq-device 4288 0 [snd-rawmidi]
snd 31524 0 [snd-cs46xx snd-pcm
snd-timer snd-ac97-codec snd-rawmidi snd-seq-device]
mousedev 4436 1 (autoclean)
agpgart 26164 0 (autoclean) (unused)
uhci 27356 0 (unused)
vfat 10892 1 (autoclean)
fat 32920 0 (autoclean) [vfat]
fan 1632 0 (unused)
thermal 6276 0 (unused)
button 2540 0 (unused)
processor 8344 0 [thermal]
battery 5760 0 (unused)
ac 1824 0 (unused)
eepro100 20500 1
mii 2496 0 [eepro100]
keybdev 2148 0 (unused)
usb-storage 121968 0 (unused)
scsi_mod 89280 0 [usb-storage]
hid 19716 0 (unused)
usbcore 65548 1 [uhci usb-storage
hid]
input 3744 0 [mousedev keybdev
hid]
# ls -lA /dev/sound
total 0
crw-rw---- 1 root audio 14, 9 1969-12-31 18:00 dmmidi
crw-rw---- 1 root audio 14, 2 1969-12-31 18:00 midi00
Can anyone please help me resolve this issue?
Many thanks!!!!
Geoff Weber
[EMAIL PROTECTED]
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