Bug 389521

Created attachment 263001 [details]
system messages file

Reassigned to kernel.

Anyway, please consider to report it to ALSA project (www.alsa-project.org),
they're authors of ALSA linux sound system.

I forgot initially to tell that sound worked stable under Ubuntu 7.x
I made some further investigation using the script:
http://bulletproof.servebeer.com/alsa/scripts/alsa-info.sh
which lists also the loaded modules. When sound is not working, there are 4
modules not loaded: vfat, fat, usb_storage and usblp

Please attach the contents of /etc/modprobe.conf to this bugzilla.

Booted the computer and I can hear no sound.
I went to sound card detection and played the test sound with known result; no
sound. The screen shows the following info:
Vendor: Intel Corporation
Model: 82801DB/DBL/DBM (ICH4/ICH4-L/ICH4-M) AC'97 Audio Controller (rev 03)
Module: snd-intel8x0
...
PCM device: Intel 82801DB-ICH4


1. alsamixer
Card: PulseAudio
Chip: PulseAudio
View: [Playback] Capture All
Item: Master

There is one bar in the center of the screen. From the bottom to top the values are:
<Master>, 65<>65, 00
The channel is not muted.

2.
[root@MGPRJRWR ~]# /sbin/lsusb
Bus 001 Device 001: ID 0000:0000 
Bus 004 Device 001: ID 0000:0000 
Bus 003 Device 001: ID 0000:0000 
Bus 002 Device 002: ID 046d:c517 Logitech, Inc.
Bus 002 Device 001: ID 0000:0000

3.
[root@MGPRJRWR ~]# yum install alsa-lib
Setting up Install Process
Parsing package install arguments
Package alsa-lib - 1.0.15-1.fc8.i386 is already installed.
Nothing to do

[root@MGPRJRWR ~]# rpm -q alsa-lib
alsa-lib-1.0.15-1.fc8

4.
[root@MGPRJRWR ~]# aplay /usr/lib/firefox-2.0.0.9/res/samples/test.wav
Playing WAVE '/usr/lib/firefox- 2.0.0.9/res/samples/test.wav' : Unsigned 8 bit,
Rate 22050 Hz, Mono
[root@MGPRJRWR ~]# aplay /usr/lib/openoffice.org/share/gallery/sounds/horse.wav
Playing WAVE '/usr/lib/openoffice.org/share/gallery/sounds/horse.wav' : Signed
16 bit Little Endian, Rate 11025 Hz, Mono

.....but I hear no no sound

5.
[root@MGPRJRWR ~]# more /etc/modprobe.conf

alias eth0 8139too
alias scsi_hostadapter libata
alias scsi_hostadapter1 ata_piix
alias eth1 ipw2200
alias snd-card-0 snd-intel8x0
options snd-card-0 index=0
options snd-intel8x0 index=0

6.
[root@MGPRJRWR ~]# cat /proc/asound/cards

 0 [I82801DBICH4   ]: ICH4 - Intel 82801DB-ICH4
                      Intel 82801DB-ICH4 with VIA1612A at irq 9



7. extract from /vat/log/messages
...
Nov 28 08:13:27 MGPRJRWR kernel: agpgart: Detected an Intel 855PM Chipset.
...
Nov 28 08:13:27 MGPRJRWR kernel: intel_rng: FWH not detected
...
Nov 28 08:13:27 MGPRJRWR kernel: intel8x0_measure_ac97_clock: measured 50940 usecs
Nov 28 08:13:27 MGPRJRWR kernel: intel8x0: clocking to 48000
Nov 28 08:13:27 MGPRJRWR kernel: Unable to initialize codec #0




But I also found these messages in the same file
Nov 28 08:28:04 MGPRJRWR kernel: codec_write 0: semaphore is not ready for
register 0x2
Nov 28 08:28:05 MGPRJRWR kernel: codec_write 0: semaphore is not ready for
register 0x2
Nov 28 08:30:55 MGPRJRWR kernel: codec_write 0: semaphore is not ready for
register 0x2
Nov 28 08:30:55 MGPRJRWR kernel: codec_write 0: semaphore is not ready for
register 0x2
Nov 28 08:30:56 MGPRJRWR kernel: codec_read 0: semaphore is not ready for
register 0x2c
Nov 28 08:38:19 MGPRJRWR pulseaudio[2264]: module-alsa-sink.c: Error opening PCM
device hw:0: Device or resource busy
Nov 28 08:38:36 MGPRJRWR pulseaudio[2264]: module-alsa-sink.c: Error opening PCM
device hw:0: Device or resource busy
Nov 28 08:54:04 MGPRJRWR kernel: codec_read 0: semaphore is not ready for
register 0x2c


Nov 28 08:54:04 MGPRJRWR kernel: codec_read 0: semaphore is not ready for
register 0x2c; this record was created when plying the the test sound in sound
card detection.

Can you try blacklisting the modem driver? Just add the following line to
/etc/modprobe.d/blacklist:

blacklist snd-intel8x0m

Made this change and booted the laptop 10 times aprox. Sound was always working.
Seems to have fixed the problem. Thanks

The modem needs to be loaded after the sound driver for everything to work
properly. So if you want to use the modem this should work instead (all on one
line in modprobe.conf):

 install snd-intel8x0m { /sbin/modprobe snd-intel8x0; } ; /sbin/modprobe
--first-time --ignore-install snd-intel8x0m

Closing as not a bug since it's a config issue.

(In reply to comment #8)
> The modem needs to be loaded after the sound driver for everything to work
> properly. So if you want to use the modem this should work instead (all on one
> line in modprobe.conf):
> 
>  install snd-intel8x0m { /sbin/modprobe snd-intel8x0; } ; /sbin/modprobe
> --first-time --ignore-install snd-intel8x0m
> 
> Closing as not a bug since it's a config issue.

Short intro: I'm a Fedora contributer doing some kernel bug triaging,

Chuck I don't think that closing this as not a bug is correct, things do not
work out of the box, so atleast it should be reassigned to another Fedora
component to get properly fixed there.

Also if snd-intel8x0m must always be loaded after snd-intel8x0, then I believe
this is best fixed in the kernel, by making snd-intel8x0m depend on a symbol
defined in snd-intel8x0, or am I thinking to simple here?