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avieth
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 Posted: Mon Dec 28, 2009 9:00 pm Post subject: Broken Sound Chip? |
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Hello,
I've built a new system from old parts: an ASUS SK8N motherboard, AMD Opteron 146, etc. Everything is going well, except that the onboard nForce3 sound chip (intel8x0 driver) doesn't seem to be functioning. I have it enabled in the bios, but lspci doesn't say anything about it. Of course this leads me to suspect that the onboard sound is physically broken. Is there any other explanation for lscpi not showing the device?
Thanks. |
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audiodef
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avieth
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Posts: 1945
Location: Canada
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| Posted: Tue Dec 29, 2009 11:15 pm Post subject: |
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Today I powered on the machine and nForce audio is back in lspci. Weird. However, loading snd-intel8x0 doesn't work, and dmesg shows:
| Code: |
Intel ICH 0000:00:06.0: PCI INT A disabled
Intel ICH: probe of 0000:00:06.0 failed with error -5
Intel ICH 0000:00:06.0: PCI INT A -> Link[LAUI] -> GSI 21 (level, high) -> IRQ 21
Intel ICH 0000:00:06.0: setting latency timer to 64
codec_ready: codec is not ready [0x300000]
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I don't know why Intel ICH is there. There is nothing in this system that bears an Intel label. I do remember that when I had Windows on this machine many years ago, the audio driver was Realtek, but I'm sure intel8x0 is the driver for nForce3 audio.
What could be causing this strange behaviour? |
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aCOSwt
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Joined: 19 Oct 2007
Posts: 2537
Location: Hilbert space
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| Posted: Tue Dec 29, 2009 11:33 pm Post subject: |
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Hello,
Of course, you know your system better than I do, but I would have bet that ALC850 and not Intel 8x is the appropriate sound driver for nforce3 chipsets.
As it his a Realtek HDA, I just wonder wether you get the driver for Intel HDA (ICH10 chipset) which unfortunately tries to attach the device. |
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avieth
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| Posted: Tue Dec 29, 2009 11:46 pm Post subject: |
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Where can I find ALC850 in the kernel? I checked out all of the PCI driver options and none of them are called ALC850. I'm running gentoo-sources-2.6.31-r6
In the meantime, here is lspci -vv for my sound card, as well as /proc/interrupts.
| Code: |
00:06.0 Multimedia audio controller: nVidia Corporation nForce3 Audio (rev a2)
Subsystem: ASUSTeK Computer Inc. Device 80c5
Control: I/O+ Mem+ BusMaster- SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Interrupt: pin A routed to IRQ 21
Region 0: I/O ports at e800 [size=256]
Region 1: I/O ports at e400 [size=128]
Region 2: Memory at febfb000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Kernel modules: snd-intel8x0
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| Code: |
# cat /proc/interrupts
CPU0
0: 121 IO-APIC-edge timer
1: 8 IO-APIC-edge i8042
7: 1 IO-APIC-edge
8: 2 IO-APIC-edge rtc0
9: 0 IO-APIC-fasteoi acpi
12: 4 IO-APIC-edge i8042
14: 42 IO-APIC-edge ide0
15: 0 IO-APIC-edge ide1
17: 3073 IO-APIC-fasteoi eth0
19: 36321 IO-APIC-fasteoi sata_promise
20: 32 IO-APIC-fasteoi ehci_hcd:usb1, ohci_hcd:usb2, ohci_hcd:usb3
NMI: 0 Non-maskable interrupts
LOC: 54929 Local timer interrupts
SPU: 0 Spurious interrupts
CNT: 0 Performance counter interrupts
PND: 0 Performance pending work
TRM: 0 Thermal event interrupts
THR: 0 Threshold APIC interrupts
MCE: 0 Machine check exceptions
MCP: 3 Machine check polls
ERR: 1
MIS: 0
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aCOSwt
Bodhisattva
Joined: 19 Oct 2007
Posts: 2537
Location: Hilbert space
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| Posted: Tue Dec 29, 2009 11:53 pm Post subject: |
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Did you come across this one ?
https://bugs.gentoo.org/113595
BTW, your preceeding traces show that intel_8x0 catched the device |
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avieth
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| Posted: Wed Dec 30, 2009 7:32 am Post subject: |
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Unfortunately, that fix didn't work for me. |
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audiodef
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avieth
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Posts: 1945
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| Posted: Wed Dec 30, 2009 7:50 pm Post subject: |
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| audiodef wrote: | http://www.google.com/search?q=nforce&ie=utf-8&oe=utf-8&aq=t&rls=org.gentoo:en-US:unofficial&client=firefox-a
Or did I miss something and nforce has nothing at all to do with nvidia? |
The motherboard's chipset bears nVidia's name, but the sound chip is, in reality, manufactured by Realtek. The Realtek logo even appears on the chip itself. |
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NeddySeagoon
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Joined: 05 Jul 2003
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| Posted: Wed Dec 30, 2009 8:06 pm Post subject: |
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avieth,
If the sound device randomly comes and goes from lspci, you probably have an intermittent fault on the motherboard.
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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avieth
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Joined: 17 Sep 2004
Posts: 1945
Location: Canada
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| Posted: Wed Dec 30, 2009 8:12 pm Post subject: |
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| avieth wrote: | | Code: |
Intel ICH 0000:00:06.0: PCI INT A disabled
Intel ICH: probe of 0000:00:06.0 failed with error -5
Intel ICH 0000:00:06.0: PCI INT A -> Link[LAUI] -> GSI 21 (level, high) -> IRQ 21
Intel ICH 0000:00:06.0: setting latency timer to 64
codec_ready: codec is not ready [0x300000]
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I posted this earlier. Notice how it points to IRQ21, but /proc/interrupts lists no IRQ21, but stops instead at IRQ20. I don't have a great understanding of how IRQs work, but could this be a problem?
What I'd really like to know is the meaning of "PCI INT A disabled" and "error -5". I've been googling for hours with no luck. |
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NeddySeagoon
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| Posted: Wed Dec 30, 2009 9:36 pm Post subject: |
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avieth,
The PCI bus provides for four IRQa called "#A" "#B" "#C" and #"D" ... the # means active low.
Motherboards tend to only connect "#A" and its up to some mechanisim to route these IRQs to the IRQ numbers.
So "PCI INT A disabled" means the IRQ for that card has been disabled. "error -5" will be ther reason but I would need to read the code or maybe /usr/src/linux/Documentation to see what error -5 really means
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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audiodef
Watchman
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avieth
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Joined: 17 Sep 2004
Posts: 1945
Location: Canada
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| Posted: Thu Dec 31, 2009 7:44 pm Post subject: |
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I looked at the manual for this motherboard, and it says that the sound shares an IRQ with the parallel port; IRQ5, to be exact. So, I turned on the parallel port in the BIOS, and now lspci shows this:
| Code: |
00:06.0 Multimedia audio controller: nVidia Corporation nForce3 Audio (rev a2)
Subsystem: ASUSTeK Computer Inc. Device 80c5
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx-
Status: Cap+ 66MHz+ UDF- FastB2B+ ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
Latency: 0 (500ns min, 1250ns max)
[b] Interrupt: pin A routed to IRQ 4 [/b]
Region 0: I/O ports at e800 [size=256]
Region 1: I/O ports at ec00 [size=128]
Region 2: Memory at febfb000 (32-bit, non-prefetchable) [size=4K]
Capabilities: [44] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Kernel modules: snd-intel8x0 |
And of course, IRQ 4 doesn't show up in /proc/interrupts. Once again, I have no idea whether or not this is an important discovery, but it just seems strange to me.
I booted up the latest Knoppix CD and it returns the same errors in dmesg that I get on my installation:
| Code: |
Intel ICH 0000:00:06.0: setting latency timer to 64
codec_ready: codec is not ready [0x300000]
Intel ICH: probe of 0000:00:06.0 failed with error -5
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It no longer complains about PCI INT A, but that's probably because I disabled ACPI support in the kernel. I suspect that perhaps the driver is failing to recognize the actual make on my device, opting instead for an Intel chip. |
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NeddySeagoon
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Location: 56N 3W
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| Posted: Thu Dec 31, 2009 9:34 pm Post subject: |
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avieth,
The device may not show up in /proc/interrupts until there is a driver loaded for the device. So
| Code: | | 00:06.0 Multimedia audio controller: nVidia Corporation nForce3 Audio (rev a2) |
looks encouraging and | Code: | | Intel ICH: probe of 0000:00:06.0 failed with error -5 |
looks bad.
snd-intel8x0 accepts these load time module parameters
| Code: | parm: index:Index value for Intel i8x0 soundcard. (int)
parm: id:ID string for Intel i8x0 soundcard. (charp)
parm: ac97_clock:AC'97 codec clock (0 = whitelist + auto-detect, 1 = force autodetect). (int)
parm: ac97_quirk:AC'97 workaround for strange hardware. (charp)
parm: buggy_semaphore:Enable workaround for hardwares with problematic codec semaphores. (bool)
parm: buggy_irq:Enable workaround for buggy interrupts on some motherboards. (bool)
parm: xbox:Set to 1 for Xbox, if you have problems with the AC'97 codec detection. (bool)
parm: spdif_aclink:S/PDIF over AC-link. (int)
parm: enable:bool
parm: joystick:int |
Try | Code: | modprobe -r snd-intel8x0
modprobe snd-intel8x0 buggy_irq=1 |
A description of the parameters can probably be found in /usr/src/linux/Documentation/...
_________________
Regards,
NeddySeagoon
Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail. |
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avieth
Veteran
Joined: 17 Sep 2004
Posts: 1945
Location: Canada
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| Posted: Sat Jan 02, 2010 1:30 am Post subject: |
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I tried buggy_irq=1, buggy_semaphore=1, and ac97_quirk=1 but with no positive results. The same error messages arise.
I installed Windows XP on a different hard drive, and Windows also has trouble with the device. Device manager tells me that the audio controller failed to start with error code 10, and that the device is not using any resources. Since I already have Windows installed, I think I'll update the BIOS. I hope it doesn't add any new problems. |
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