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jamba

Member

From: NC

Registered: 2010-02-14

Posts: 15

Website

Loss of Sound

hey everybody,

My desktop has lost all sound output. today I was trying to fix this, reconfiguring alsa, uninstalling and reinstalling it and setting everything up again. still no sound.

shutdown the comp, made sure the cables still hooked up on the inside (I had just put in a new fanless heatsink on my vid card last week). everything is fine.

I booted up with a live cd, first tried fedora13...only to have fedora barf and not load the live environment.
then booted from crunchbang 10a2, which worked fine. still no sound here, either.

could this be caused by anything else, or is my on-board sound just dead?

is there anything else to troubleshoot?

here's what I've got :

[b]$ ls -l /sys/module/snd/holders[/b]
total 0
lrwxrwxrwx 1 root root 0 Jul  9 21:54 snd_ac97_codec -> ../../snd_ac97_codec/
lrwxrwxrwx 1 root root 0 Jul  9 21:54 [b]snd_intel8x0 -> ../../snd_intel8x0/[/b]
lrwxrwxrwx 1 root root 0 Jul  9 21:54 snd_mixer_oss -> ../../snd_mixer_oss/
lrwxrwxrwx 1 root root 0 Jul  9 21:54 snd_mpu401 -> ../../snd_mpu401/
lrwxrwxrwx 1 root root 0 Jul  9 21:54 snd_mpu401_uart -> ../../snd_mpu401_uart/
lrwxrwxrwx 1 root root 0 Jul  9 21:54 snd_pcm -> ../../snd_pcm/
lrwxrwxrwx 1 root root 0 Jul  9 21:54 snd_pcm_oss -> ../../snd_pcm_oss/
lrwxrwxrwx 1 root root 0 Jul  9 21:54 snd_rawmidi -> ../../snd_rawmidi/
lrwxrwxrwx 1 root root 0 Jul  9 21:54 snd_seq -> ../../snd_seq/
lrwxrwxrwx 1 root root 0 Jul  9 21:54 snd_seq_device -> ../../snd_seq_device/
lrwxrwxrwx 1 root root 0 Jul  9 21:54 snd_seq_oss -> ../../snd_seq_oss/
lrwxrwxrwx 1 root root 0 Jul  9 21:54 snd_timer -> ../../snd_timer/

this one i'm not sure about.  should it be at the top?

[b]$ lsmod|grep '^snd' | column -t[/b]
snd_seq_dummy       1447    0
snd_seq_oss         28928   0
snd_seq_midi_event  5420    1   snd_seq_oss
snd_seq             50530   5   snd_seq_dummy,snd_seq_oss,snd_seq_midi_event
snd_mpu401          5376    0
snd_mpu401_uart     5931    1   snd_mpu401
snd_rawmidi         19235   1   snd_mpu401_uart
snd_pcm_oss         39096   0
snd_seq_device      5241    4   snd_seq_dummy,snd_seq_oss,snd_seq,snd_rawmidi
snd_mixer_oss       16932   1   snd_pcm_oss
[b]snd_intel8x0        26839[/b]   0
snd_ac97_codec      110525  [b]1   snd_intel8x0[/b]
snd_pcm             71653   3   snd_pcm_oss,snd_intel8x0,snd_ac97_codec
snd_timer           19660   2   snd_seq,snd_pcm
snd                 57225   12  snd_seq_oss,snd_seq,snd_mpu401,snd_mpu401_uart,snd_rawmidi,snd_pcm_oss,snd_seq_device,snd_mixer_oss,snd_intel8x0,snd_ac97_codec,snd_pcm,snd_timer
snd_page_alloc      7201    2   snd_intel8x0,snd_pcm

[b]$ ls -l /dev/snd[/b]
total 0
crw-rw----+ 1 root audio 116, 4 Jul  9 20:14 controlC1
crw-rw----+ 1 root audio 116, 3 Jul  9 20:14 midiC1D0
crw-rw----+ 1 root audio 116, 5 Jul  9 20:14 seq
crw-rw----+ 1 root audio 116, 2 Jul  9 20:14 timer

[b]$ lspci[/b]
00:00.0 Memory controller: nVidia Corporation CK804 Memory Controller (rev a3)
00:01.0 ISA bridge: nVidia Corporation CK804 ISA Bridge (rev a3)
00:01.1 SMBus: nVidia Corporation CK804 SMBus (rev a2)
00:02.0 USB Controller: nVidia Corporation CK804 USB Controller (rev a2)
00:02.1 USB Controller: nVidia Corporation CK804 USB Controller (rev a3)
00:06.0 IDE interface: nVidia Corporation CK804 IDE (rev f2)
00:07.0 IDE interface: nVidia Corporation CK804 Serial ATA Controller (rev f3)
00:08.0 IDE interface: nVidia Corporation CK804 Serial ATA Controller (rev f3)
00:09.0 PCI bridge: nVidia Corporation CK804 PCI Bridge (rev a2)
00:0a.0 Bridge: nVidia Corporation CK804 Ethernet Controller (rev a3)
00:0b.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3)
00:0c.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3)
00:0d.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3)
00:0e.0 PCI bridge: nVidia Corporation CK804 PCIE Bridge (rev a3)
00:18.0 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] HyperTransport Technology Configuration
00:18.1 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Address Map
00:18.2 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] DRAM Controller
00:18.3 Host bridge: Advanced Micro Devices [AMD] K8 [Athlon64/Opteron] Miscellaneous Control
01:00.0 VGA compatible controller: nVidia Corporation NV41.1 [GeForce 6800] (rev a2)
05:0b.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22/A IEEE-1394a-2000 Controller (PHY/Link)

THis is also weird...sometimes this will work, and sometimes it won't.  when I say sometimes I mean as I've been fidling around with settings.  but even when it worked a while ago I still had no sound.

[b]$ alsamixer[/b]
cannot open mixer: No such file or directory

Right now, alsamixer opens normally. (after a reboot)

/etc/rc.conf excerpt:

MODULES=(!usblp !acpi-cpufreq !snd_intel8x0m vboxdrv vboxnetflt !snd-pcsp snd_i$

/etc/modprobe.d/modprobe.conf

#
# /etc/modprobe.d/modprobe.conf (for v2.6 kernels)
#
options snd-intel8x0 ac97_quirk=1
#NVidia CK804 Chip: Realtek ALC850 rev 0

options snd-pcsp index=2

thanks!

windscape

Member

Registered: 2010-04-30

Posts: 69

Re: Loss of Sound

Hi jamba,

I think the issue is that your output of lspci shows no Audio device. Perhaps it got disabled in the BIOS? dmesg output may indicate something else afoot with your audio hardware.

Hope that helps.

MoonSwan

Member

From: Great White North

Registered: 2008-01-23

Posts: 881

Re: Loss of Sound

!snd_intel8x0m  <- is your problem. Your sound module got blacklisted so un-list it. Modprobe it then try sound again or just reboot and it should work.

jamba

Member

From: NC

Registered: 2010-02-14

Posts: 15

Website

Re: Loss of Sound

Hi jamba,

I think the issue is that your output of lspci shows no Audio device. Perhaps it got disabled in the BIOS? dmesg output may indicate something else afoot with your audio hardware.

Hope that helps.

I'll check out dmesg output.  also still need to check if something got disabled in the BIOS.

!snd_intel8x0m  <- is your problem. Your sound module got blacklisted so un-list it. Modprobe it then try sound again or just reboot and it should work.

moonswan.  snd_intel8x0 is the sound card (I think), in the alsa wiki it said it was recommended to blacklist snd_intel8x0m as a quirk fix. 
No sound with or without it blacklisted still :-(

thanks