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Old 05-16-2005, 10:34 AM   #1
c_ryan
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Registered: May 2005
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Unhappy No audio on ALC850 onboard sound (FC3)


Hello,
I've recently installed Fedora Core 3 (32-bit, not 64-bit version) on my computer, and it is generally working fine. However, I have been having some sound problems. (My soundcard is a "Realtek ALC850, 8-channel CODEC" onboard my Asus K8N-E Deluxe motherboard). Regardless of the output plugin I choose in programs like XMMS, I get messages to the effect of soundcard busy or nonexistent. I did have the sound working fine a few days ago and don't know why it's suddenly decided to stop working. If I try to adjust the volume controls on the desktop I am told that no sound card exists

Here is my /sbin/lspci

Code:
00:00.0 Host bridge: nVidia Corporation: Unknown device 00e1 (rev a1)
00:01.0 ISA bridge: nVidia Corporation: Unknown device 00e0 (rev a2)
00:01.1 SMBus: nVidia Corporation nForce 250Gb PCI System Management (rev a1)
00:02.0 USB Controller: nVidia Corporation CK8S USB Controller (rev a1)
00:02.1 USB Controller: nVidia Corporation CK8S USB Controller (rev a1)
00:02.2 USB Controller: nVidia Corporation CK8S USB Controller (rev a2)
00:05.0 Bridge: nVidia Corporation CK8S Ethernet Controller (rev a2)
00:06.0 Multimedia audio controller: nVidia Corporation nForce3 250Gb AC'97 Audio Controller (rev a1)
00:08.0 IDE interface: nVidia Corporation CK8S Parallel ATA Controller (v2.5) (rev a2)
00:0a.0 IDE interface: nVidia Corporation CK8S Serial ATA Controller (v2.5) (rev a2)
00:0b.0 PCI bridge: nVidia Corporation nForce3 250Gb AGP Host to PCI Bridge (rev a2)
00:0e.0 PCI bridge: nVidia Corporation nForce3 250Gb PCI-to-PCI Bridge (rev a2)
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 NV43 [GeForce 6600/GeForce 6600 GT] (rev a2)
02:0b.0 FireWire (IEEE 1394): VIA Technologies, Inc. IEEE 1394 Host Controller (rev 80)
02:0c.0 RAID bus controller: Silicon Image, Inc. (formerly CMD Technology Inc) SiI 3114 [SATALink/SATARaid] Serial ATA Controller (rev 02)
And my kernel is 2.6.11-1.14_FC3

Here are the results of lsmod | grep snd before the problem
Code:
snd_intel8x0           34049  11
snd_ac97_codec         71097  1 snd_intel8x0
snd_pcm_oss            51953  0
snd_mixer_oss          18241  2 snd_pcm_oss
snd_pcm                99657  3 snd_intel8x0,snd_ac97_codec,snd_pcm_oss
snd_timer              33093  1 snd_pcm
snd                    56741  26 snd_intel8x0,snd_ac97_codec,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_timer
soundcore              10785  2 snd
snd_page_alloc          9669  2 snd_intel8x0,snd_pcm
lsmod | grep snd with the problem
Thanks,

Last edited by c_ryan; 05-19-2005 at 08:38 AM.
 
Old 05-17-2005, 09:04 PM   #2
Simon Bridge
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Registered: Oct 2003
Location: Waiheke NZ
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You mean besides: no drivers = no sound?
Or do you want to know why all the snd drivers unloaded suddenly?

Have you tried reloading all the drivers?
 
Old 05-19-2005, 08:36 AM   #3
c_ryan
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Registered: May 2005
Posts: 5

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Well I did want to know why the drivers suddenly unloaded themselves and how I could get them back.
I reinstalled FC3 and the sound is working again now.
 
Old 05-20-2005, 03:58 AM   #4
Simon Bridge
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Registered: Oct 2003
Location: Waiheke NZ
Distribution: Ubuntu
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You control modules (drivers) with modprobe ... man page for details.

Modules do not unload themselves unless ... if they are unused for a long time, I think there is a daemon which unloads them, but the same daemon loads them again when they are needed. (I think this was kerneld - but AFAIK that is depreciated in the 2.4.20+ kernels.)

However, in general, something has to call rmmod or modprobe to remove the modules. Such a call would probably have been in then logs.
 
  


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