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PROBLEM: sound is stutter, sizzle with lasts kernel releases

DISCUSSION XI 5 participants 11 messages Dec 1, 2002 – Dec 13, 2002

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XI

author
#0 lore raw

Hi,
[1] With kernel-2.4.19 and kernel-2.4.20 the sound stutter, sizzle

[2] The problem seems be correlated with my PCI graphic card (matrox G200 PCI) and my sound card (sound blaster live 5.1).
In fact every time I listen music and that something appens on my screen (moving a window, watching a movie) the sound stutter.

I think the first thing I should do is to try different kernel version in order to find when this problem appeared first.

But before I spend time to do this, I would like to know if someone is going to help me to find the problem.

If I get a positive response, I will do my best to help to find the bug. But If you think this problem isn't really important, I don't want to spend hours to find the problem ...

[3] Keywords:
~ modules: OSS or ALSA (same problem with both)
~ kernel: 2.4.20 (official), 2.4.19 at least. But it works fine with 2.4.8

[7.2] CPU:
processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 6
model name : AMD Athlon(tm) MP 2000+
stepping : 2
cpu MHz : 1666.754
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow
bogomips : 3322.67

processor : 1
vendor_id : AuthenticAMD
cpu family : 6
model : 6
model name : AMD Athlon(tm) Processor
stepping : 2
cpu MHz : 1666.754
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow
bogomips : 3329.22

[7.3] modules

binfmt_misc             6176   1
lp                      7008   0
parport_pc             23368   1
parport                27424   1 [lp parport_pc]
emu10k1                70380   1
soundcore               4516   0 [emu10k1]
ac97_codec             10504   0 [emu10k1]
af_packet              14792   0 (autoclean)
3c59x                  27792   1 (autoclean)
supermount             15716   4 (autoclean)
ide-cd                 30248   0
cdrom                  28800   0 [ide-cd]
ide-scsi                9044   0
scsi_mod               95684   1 [ide-scsi]
usb-ohci               19432   0 (unused)
usbcore                64512   1 [usb-ohci]
rtc                     7680   0 (autoclean)
ext3                   82292   2
jbd                    44736   2 [ext3]

[7.4] Loaded driver and hardware information
0000-001f : dma1
0020-003f : pic1
0040-005f : timer
0060-006f : keyboard
0070-007f : rtc
0080-008f : dma page reg
00a0-00bf : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : ide1
01f0-01f7 : ide0
02f8-02ff : serial(auto)
0376-0376 : ide1
0378-037a : parport0
037b-037f : parport0
03c0-03df : vga+
03f6-03f6 : ide0
03f8-03ff : serial(auto)
0cf8-0cff : PCI conf1
1010-1013 : Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] System Controller
2000-2fff : PCI Bus #02

     2000-207f : 3Com Corporation 3c905C-TX/TX-M [Tornado]
       2000-207f : 02:08.0
     2080-209f : Creative Labs SB Live! EMU10k1
       2080-209f : EMU10K1
     20a0-20a7 : Creative Labs SB Live! MIDI/Game Port
f000-f00f : Advanced Micro Devices [AMD] AMD-768 [Opus] IDE
     f000-f007 : ide0
     f008-f00f : ide1

[root@xii root]# cat /proc/iomem
00000000-0009f7ff : System RAM
0009f800-0009ffff : reserved
000a0000-000bffff : Video RAM area
000c0000-000c7fff : Video ROM
000c8000-000c87ff : Extension ROM
000f0000-000fffff : System ROM
00100000-1feeffff : System RAM

     00100000-00267a41 : Kernel code
     00267a42-002e0d7f : Kernel data

1fef0000-1fefefff : ACPI Tables
1feff000-1fefffff : ACPI Non-volatile Storage
1ff00000-1ff7ffff : System RAM
1ff80000-1fffffff : reserved
f4000000-f48fffff : PCI Bus #01

     f4000000-f47fffff : Matrox Graphics, Inc. MGA G200 AGP
     f4800000-f4803fff : Matrox Graphics, Inc. MGA G200 AGP
f4900000-f5ffffff : PCI Bus #02
     f4900000-f4900fff : Advanced Micro Devices [AMD] AMD-768 [Opus] USB
       f4900000-f4900fff : usb-ohci
     f4901000-f490107f : 3Com Corporation 3c905C-TX/TX-M [Tornado]
     f4904000-f4907fff : Matrox Graphics, Inc. MGA G200
     f4908000-f490bfff : Matrox Graphics, Inc. MGA G200 (#2)
     f5000000-f57fffff : Matrox Graphics, Inc. MGA G200
     f5800000-f5ffffff : Matrox Graphics, Inc. MGA G200 (#2)

f6200000-f6200fff : Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] System Controller
f8000000-f9ffffff : Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] System Controller
fa000000-faffffff : PCI Bus #01
fa000000-faffffff : Matrox Graphics, Inc. MGA G200 AGP
fb000000-fcffffff : PCI Bus #02

     fb000000-fbffffff : Matrox Graphics, Inc. MGA G200
     fc000000-fcffffff : Matrox Graphics, Inc. MGA G200 (#2)

fec00000-fec03fff : reserved
fee00000-fee00fff : reserved
fff80000-ffffffff : reserved

[7.5] PCI information
00:00.0 Host bridge: Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] System Controller (rev 11)
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort+ >SERR- <PERR-

           Latency: 64
           Region 0: Memory at f8000000 (32-bit, prefetchable) [size=32M]
           Region 1: Memory at f6200000 (32-bit, prefetchable) [size=4K]
           Region 2: I/O ports at 1010 [disabled] [size=4]
           Capabilities: [a0] AGP version 2.0
                   Status: RQ=15 SBA+ 64bit- FW+ Rate=x1,x2
                   Command: RQ=0 SBA+ AGP+ 64bit- FW- Rate=<none>

00:01.0 PCI bridge: Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] AGP Bridge (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort- >SERR- <PERR-

           Latency: 99
           Bus: primary=00, secondary=01, subordinate=01, sec-latency=69
           I/O behind bridge: 0000f000-00000fff
           Memory behind bridge: f4000000-f48fffff
           Prefetchable memory behind bridge: fa000000-faffffff
           BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-

00:07.0 ISA bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] ISA (rev 05)
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort- >SERR- <PERR-

Latency: 0

00:07.1 IDE interface: Advanced Micro Devices [AMD] AMD-768 [Opus] IDE (rev 04) (prog-if 8a [Master SecP PriP])
Subsystem: Advanced Micro Devices [AMD] AMD-768 [Opus] IDE
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort- >SERR- <PERR-

           Latency: 0
           Region 4: I/O ports at f000 [size=16]

00:07.3 Bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] ACPI (rev 03)
Subsystem: Advanced Micro Devices [AMD] AMD-768 [Opus] ACPI
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort- >SERR- <PERR-

00:10.0 PCI bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] PCI (rev
05) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort+ >SERR- <PERR-

           Latency: 64
           Bus: primary=00, secondary=02, subordinate=02, sec-latency=69
           I/O behind bridge: 00002000-00002fff
           Memory behind bridge: f4900000-f5ffffff
           Prefetchable memory behind bridge: fb000000-fcffffff
           BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-

01:05.0 VGA compatible controller: Matrox Graphics, Inc. MGA G200 AGP (rev 01) (prog-if 00 [VGA])
Subsystem: Matrox Graphics, Inc. MGA-G200 AGP
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort- >SERR- <PERR-

           Latency: 128 (4000ns min, 8000ns max), cache line size 10
           Interrupt: pin A routed to IRQ 5
           Region 0: Memory at fa000000 (32-bit, prefetchable) [size=16M]
           Region 1: Memory at f4800000 (32-bit, non-prefetchable)
[size=16K]
           Region 2: Memory at f4000000 (32-bit, non-prefetchable) 

[size=8M]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: [dc] Power Management version 1
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [f0] AGP version 1.0
Status: RQ=31 SBA+ 64bit- FW- Rate=x1,x2
Command: RQ=31 SBA+ AGP+ 64bit- FW- Rate=x2

02:00.0 USB Controller: Advanced Micro Devices [AMD] AMD-768 [Opus] USB (rev 07) (prog-if 10 [OHCI])
Subsystem: Advanced Micro Devices [AMD] AMD-768 [Opus] USB
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort- >SERR- <PERR+

           Latency: 64 (20000ns max)
           Interrupt: pin D routed to IRQ 10
           Region 0: Memory at f4900000 (32-bit, non-prefetchable) 

[size=4K]

02:04.0 VGA compatible controller: Matrox Graphics, Inc. MGA G200 (rev
01) (prog-if 00 [VGA])
Subsystem: Matrox Graphics, Inc. Millennium G200 SD
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort- >SERR- <PERR-

           Latency: 128 (4000ns min, 8000ns max), cache line size 10
           Interrupt: pin A routed to IRQ 11
           Region 0: Memory at fb000000 (32-bit, prefetchable) [size=16M]
           Region 1: Memory at f4904000 (32-bit, non-prefetchable)
[size=16K]
           Region 2: Memory at f5000000 (32-bit, non-prefetchable) 

[size=8M]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: [dc] Power Management version 1
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

02:06.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 07)
Subsystem: Creative Labs: Unknown device 8064
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort- >SERR- <PERR-

Latency: 64 (500ns min, 5000ns max)
Interrupt: pin A routed to IRQ 5
Region 0: I/O ports at 2080 [size=32]
Capabilities: [dc] Power Management version 1
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

02:06.1 Input device controller: Creative Labs SB Live! MIDI/Game Port (rev 07)
Subsystem: Creative Labs Gameport Joystick
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort- >SERR- <PERR-

Latency: 64
Region 0: I/O ports at 20a0 [size=8]
Capabilities: [dc] Power Management version 1
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

02:07.0 VGA compatible controller: Matrox Graphics, Inc. MGA G200 (rev
01) (prog-if 00 [VGA])
Subsystem: Matrox Graphics, Inc. Millennium G200 SD
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort- >SERR- <PERR-

           Latency: 128 (4000ns min, 8000ns max), cache line size 10
           Interrupt: pin A routed to IRQ 10
           Region 0: Memory at fc000000 (32-bit, prefetchable) [size=16M]
           Region 1: Memory at f4908000 (32-bit, non-prefetchable)
[size=16K]
           Region 2: Memory at f5800000 (32-bit, non-prefetchable) 

[size=8M]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: [dc] Power Management version 1
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

02:08.0 Ethernet controller: 3Com Corporation 3c905C-TX/TX-M [Tornado] (rev 78)
Subsystem: Tyan Computer: Unknown device 2466
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort- >SERR- <PERR-

           Latency: 80 (2500ns min, 2500ns max), cache line size 10
           Interrupt: pin A routed to IRQ 10
           Region 0: I/O ports at 2000 [size=128]
           Region 1: Memory at f4901000 (32-bit, non-prefetchable)

[size=128]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=2 PME-

[8] Some informations that may be usefull
*** Just down-grading to the kernel 2.4.8 solves the problem *** I have several graphic cards in my P.C. (one AGP and 2 PCI), but using only one PCI cause the problem to occur.
*** I have a SMP machine, but I have tried using only one processor, same problem.
*** I have tried official kernel 2.4.20, with the same problem *** I also tried to use OSS emu10k1-v0.20a drivers: always the same:
problem doesn't occurs with 2.4.8 but occurs with 2.4.19 and 2.4.20 *** I was thinking about some timings changed for PCI bus since kernel 2.4.8 ?

*** As I said before, if I get a positive response, I will do my best to help to find the bug. But If you think this problem isn't really important, I don't want to spend hours to find it ...

Thanks,
Xavier

#1 lore raw
Quoted 7 lines · XI

Hi,
[1] With kernel-2.4.19 and kernel-2.4.20 the sound stutter, sizzle

[2] The problem seems be correlated with my PCI graphic card (matrox G200 PCI) and my sound card (sound blaster live 5.1).
In fact every time I listen music and that something appens on my screen (moving a window, watching a movie) the sound stutter.

Make sure you have the XFree86 settings for the Matrox right -in paticular the PCI retry option

author
#2 lore raw
Quoted 11 lines · Alan Cox
Quoted 7 lines · XI

Hi,
[1] With kernel-2.4.19 and kernel-2.4.20 the sound stutter, sizzle

[2] The problem seems be correlated with my PCI graphic card (matrox G200 PCI) and my sound card (sound blaster live 5.1).
In fact every time I listen music and that something appens on my screen (moving a window, watching a movie) the sound stutter.

Quoted 9 lines

Make sure you have the XFree86 settings for the Matrox right -in paticular the PCI retry option

-
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Thanks for the reply,

Yes, PciRetry option is on in file XF86Config-4; and as I said in my previous mail, changing kernel-2.4.20 to 2.4.8 just solves the problem (ie I change nothing else).

I was thinking about a problem with my chipset (AMD760MPX, motherboard tyan tiger MPX); because I have done some tests on a PC with a matrox G200 PCI and a sound blaster live, with a chipset via KT333 and the problem doesn't seems to occur. Is it possible?

Xavier

#3 lore raw
Quoted 4 lines · XI

I was thinking about a problem with my chipset (AMD760MPX, motherboard tyan tiger MPX); because I have done some tests on a PC with a matrox G200 PCI and a sound blaster live, with a chipset via KT333 and the problem doesn't seems to occur. Is it possible?

Could be - the newer kernel supports IDE DMA, and in my experience the AMD76x has serious fairness problems (I gave up using it for video capture)

author
#4 lore raw
Quoted 9 lines · Alan Cox
Quoted 1 line · XI

I was thinking about a problem with my chipset (AMD760MPX, motherboard tyan tiger MPX); because I have done some tests on a PC with a matrox G200 PCI and a sound blaster live, with a chipset via KT333 and the problem doesn't seems to occur. Is it possible?

Could be - the newer kernel supports IDE DMA, and in my experience the AMD76x has serious fairness problems (I gave up using it for video capture)

This doesn't reassure me :-) but I didn't get the choice for an SMP machine with some athlon processors.

Note that I am also able to use IDE DMA with the kernel 2.4.8 (ie hdparm -d 1 /dev/hd. works)

So now, do you want me to try other kernel version in order to find in what version the problem appeared?

Xavier

#5 lore raw

Hi!

Quoted 14 lines
Quoted 10 lines
Quoted 4 lines

I was thinking about a problem with my chipset (AMD760MPX, motherboard tyan tiger MPX); because I have done some tests on a PC with a matrox G200 PCI and a sound blaster live, with a chipset via KT333 and the problem doesn't seems to occur. Is it possible?

Could be - the newer kernel supports IDE DMA, and in my experience the AMD76x has serious fairness problems (I gave up using it for video capture)

This doesn't reassure me :-) but I didn't get the choice for an SMP machine with some athlon processors.

Quoted 6 lines

Note that I am also able to use IDE DMA with the kernel 2.4.8 (ie hdparm -d 1 /dev/hd. works)

So now, do you want me to try other kernel version in order to find in what version the problem appeared?

Try turning off power managment... CONFIG_ACPI and CONFIG_APM off. If it helps, your power supply is just not good enough.
Pavel

Signature · 2 lines
Worst form of spam? Adding advertisment signatures ala sourceforge.net.
What goes next? Inserting advertisment *into* email?
#6 lore raw
In reply to XI
Quoted 7 lines · XI

Hi,
[1] With kernel-2.4.19 and kernel-2.4.20 the sound stutter, sizzle

[2] The problem seems be correlated with my PCI graphic card (matrox G200 PCI) and my sound card (sound blaster live 5.1).
In fact every time I listen music and that something appens on my screen (moving a window, watching a movie) the sound stutter.

I had a similar problem. Turned out to be where my TV card was plugged into + my mixer settings. I had the tv sound out plugged into mic, instead of line in. Using aumix I was able to figure out that changing which input was allowed to recored got rid of the noise. Have you attempted such trouble shooting?

Quoted 2 lines

I think the first thing I should do is to try different kernel version in order to find when this problem appeared first.

--The GrandMaster

author
#7 lore raw
Quoted 18 lines · GrandMasterLee
Quoted 7 lines · XI

Hi,
[1] With kernel-2.4.19 and kernel-2.4.20 the sound stutter, sizzle

[2] The problem seems be correlated with my PCI graphic card (matrox G200 PCI) and my sound card (sound blaster live 5.1).
In fact every time I listen music and that something appens on my screen (moving a window, watching a movie) the sound stutter.

I had a similar problem. Turned out to be where my TV card was plugged into + my mixer settings. I had the tv sound out plugged into mic, instead of line in. Using aumix I was able to figure out that changing which input was allowed to recored got rid of the noise. Have you attempted such trouble shooting?

Quoted 6 lines
Quoted 2 lines

I think the first thing I should do is to try different kernel version in order to find when this problem appeared first.

--The GrandMaster

Thanks for the reply,

I don't think this is the problem, because nothing is plugged into mic or line in; and all settings are set to 0 in aumix except Vol, Pcm and OGain.

Xavier

#8 lore raw
Quoted 6 lines · XI
Quoted 6 lines
Quoted 4 lines

I think the first thing I should do is to try different kernel version in order to find when this problem appeared first.

Quoted 8 lines
Quoted 2 lines

--The GrandMaster

Thanks for the reply,

I don't think this is the problem, because nothing is plugged into mic or line in; and all settings are set to 0 in aumix except Vol, Pcm and OGain.

It's not so much about what is connected to the devices, as what is actually going on in the asic on the board. If something were faulty, or slightly more sensetive than it should be(too high a tolerance), then you could get this affect. Changing your mixer parameters might show you the light, er um...let you hear the difference and see if it gets worse or not. Another thing you could also do, is move the sblive card to a different slot, if not yet tried. If in too close proximity to the NIC, it *could* cause this behaviour as well.

Quoted 3 lines

Xavier

#9 lore raw
In reply to XI
Quoted 9 lines · XI
Quoted 3 lines

--The GrandMaster

Thanks for the reply,

I don't think this is the problem, because nothing is plugged into mic or line in; and all settings are set to 0 in aumix except Vol, Pcm and OGain.

:) I hear you. I was just pressing it because that was *exactly* what happened to me. :)

Quoted 3 lines

Xavier

#10 lore raw
In reply to XI

I am experiencing the same problem, but it is intermittent. Sound is perfect for a while, until I run some large graphic intensive application, eg. PCB design program. The sound then starts to sizzle and it doesn't stop until I restart X. It doesn't help quitting the program that caused the problem to occur.

My system is a 1.8GHz Pentium IV with Matrox and nVidea video cards (2 headed) with two large CRT screens for circuit design using xinerama.

All worked perfectly on kernel 2.4.18.

Somebody mentioned looking at the X configuration. I'll do that and report back if I manage to find the cause.

Cheers,

Signature · 8 lines
------------------------------------------------------------------------
Herman Oosthuysen
B.Eng.(E), Member of IEEE
Wireless Networks Inc.
http://www.WirelessNetworksInc.com
E-mail: [email protected]
Phone: 1.403.569-5687, Fax: 1.403.235-3965
------------------------------------------------------------------------
Quoted 372 lines · XI

Hi,
[1] With kernel-2.4.19 and kernel-2.4.20 the sound stutter, sizzle

[2] The problem seems be correlated with my PCI graphic card (matrox G200 PCI) and my sound card (sound blaster live 5.1).
In fact every time I listen music and that something appens on my screen (moving a window, watching a movie) the sound stutter.

I think the first thing I should do is to try different kernel version in order to find when this problem appeared first.

But before I spend time to do this, I would like to know if someone is going to help me to find the problem.

If I get a positive response, I will do my best to help to find the bug. But If you think this problem isn't really important, I don't want to spend hours to find the problem ...

[3] Keywords:
~ modules: OSS or ALSA (same problem with both)
~ kernel: 2.4.20 (official), 2.4.19 at least. But it works fine with 2.4.8

[7.2] CPU:
processor : 0
vendor_id : AuthenticAMD
cpu family : 6
model : 6
model name : AMD Athlon(tm) MP 2000+
stepping : 2
cpu MHz : 1666.754
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow
bogomips : 3322.67

processor : 1
vendor_id : AuthenticAMD
cpu family : 6
model : 6
model name : AMD Athlon(tm) Processor
stepping : 2
cpu MHz : 1666.754
cache size : 256 KB
fdiv_bug : no
hlt_bug : no
f00f_bug : no
coma_bug : no
fpu : yes
fpu_exception : yes
cpuid level : 1
wp : yes
flags : fpu vme de tsc msr pae mce cx8 apic sep mtrr pge mca
cmov pat pse36 mmx fxsr sse syscall mmxext 3dnowext 3dnow
bogomips : 3329.22

[7.3] modules

binfmt_misc             6176   1
lp                      7008   0
parport_pc             23368   1
parport                27424   1 [lp parport_pc]
emu10k1                70380   1
soundcore               4516   0 [emu10k1]
ac97_codec             10504   0 [emu10k1]
af_packet              14792   0 (autoclean)
3c59x                  27792   1 (autoclean)
supermount             15716   4 (autoclean)
ide-cd                 30248   0
cdrom                  28800   0 [ide-cd]
ide-scsi                9044   0
scsi_mod               95684   1 [ide-scsi]
usb-ohci               19432   0 (unused)
usbcore                64512   1 [usb-ohci]
rtc                     7680   0 (autoclean)
ext3                   82292   2
jbd                    44736   2 [ext3]

[7.4] Loaded driver and hardware information
0000-001f : dma1
0020-003f : pic1
0040-005f : timer
0060-006f : keyboard
0070-007f : rtc
0080-008f : dma page reg
00a0-00bf : pic2
00c0-00df : dma2
00f0-00ff : fpu
0170-0177 : ide1
01f0-01f7 : ide0
02f8-02ff : serial(auto)
0376-0376 : ide1
0378-037a : parport0
037b-037f : parport0
03c0-03df : vga+
03f6-03f6 : ide0
03f8-03ff : serial(auto)
0cf8-0cff : PCI conf1
1010-1013 : Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] System Controller
2000-2fff : PCI Bus #02

     2000-207f : 3Com Corporation 3c905C-TX/TX-M [Tornado]
       2000-207f : 02:08.0
     2080-209f : Creative Labs SB Live! EMU10k1
       2080-209f : EMU10K1
     20a0-20a7 : Creative Labs SB Live! MIDI/Game Port
f000-f00f : Advanced Micro Devices [AMD] AMD-768 [Opus] IDE
     f000-f007 : ide0
     f008-f00f : ide1

[root@xii root]# cat /proc/iomem
00000000-0009f7ff : System RAM
0009f800-0009ffff : reserved
000a0000-000bffff : Video RAM area
000c0000-000c7fff : Video ROM
000c8000-000c87ff : Extension ROM
000f0000-000fffff : System ROM
00100000-1feeffff : System RAM

     00100000-00267a41 : Kernel code
     00267a42-002e0d7f : Kernel data

1fef0000-1fefefff : ACPI Tables
1feff000-1fefffff : ACPI Non-volatile Storage
1ff00000-1ff7ffff : System RAM
1ff80000-1fffffff : reserved
f4000000-f48fffff : PCI Bus #01

     f4000000-f47fffff : Matrox Graphics, Inc. MGA G200 AGP
     f4800000-f4803fff : Matrox Graphics, Inc. MGA G200 AGP
f4900000-f5ffffff : PCI Bus #02
     f4900000-f4900fff : Advanced Micro Devices [AMD] AMD-768 [Opus] USB
       f4900000-f4900fff : usb-ohci
     f4901000-f490107f : 3Com Corporation 3c905C-TX/TX-M [Tornado]
     f4904000-f4907fff : Matrox Graphics, Inc. MGA G200
     f4908000-f490bfff : Matrox Graphics, Inc. MGA G200 (#2)
     f5000000-f57fffff : Matrox Graphics, Inc. MGA G200
     f5800000-f5ffffff : Matrox Graphics, Inc. MGA G200 (#2)

f6200000-f6200fff : Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] System Controller
f8000000-f9ffffff : Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] System Controller
fa000000-faffffff : PCI Bus #01
fa000000-faffffff : Matrox Graphics, Inc. MGA G200 AGP
fb000000-fcffffff : PCI Bus #02

     fb000000-fbffffff : Matrox Graphics, Inc. MGA G200
     fc000000-fcffffff : Matrox Graphics, Inc. MGA G200 (#2)

fec00000-fec03fff : reserved
fee00000-fee00fff : reserved
fff80000-ffffffff : reserved

[7.5] PCI information
00:00.0 Host bridge: Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] System Controller (rev 11)
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort+ >SERR- <PERR-

           Latency: 64
           Region 0: Memory at f8000000 (32-bit, prefetchable) [size=32M]
           Region 1: Memory at f6200000 (32-bit, prefetchable) [size=4K]
           Region 2: I/O ports at 1010 [disabled] [size=4]
           Capabilities: [a0] AGP version 2.0
                   Status: RQ=15 SBA+ 64bit- FW+ Rate=x1,x2
                   Command: RQ=0 SBA+ AGP+ 64bit- FW- Rate=<none>

00:01.0 PCI bridge: Advanced Micro Devices [AMD] AMD-760 MP [IGD4-2P] AGP Bridge (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort- >SERR- <PERR-

           Latency: 99
           Bus: primary=00, secondary=01, subordinate=01, sec-latency=69
           I/O behind bridge: 0000f000-00000fff
           Memory behind bridge: f4000000-f48fffff
           Prefetchable memory behind bridge: fa000000-faffffff
           BridgeCtl: Parity- SERR- NoISA+ VGA- MAbort- >Reset- FastB2B-

00:07.0 ISA bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] ISA (rev 05)
Control: I/O+ Mem+ BusMaster+ SpecCycle+ MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort- >SERR- <PERR-

Latency: 0

00:07.1 IDE interface: Advanced Micro Devices [AMD] AMD-768 [Opus] IDE (rev 04) (prog-if 8a [Master SecP PriP])
Subsystem: Advanced Micro Devices [AMD] AMD-768 [Opus] IDE
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort- >SERR- <PERR-

           Latency: 0
           Region 4: I/O ports at f000 [size=16]

00:07.3 Bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] ACPI (rev 03)
Subsystem: Advanced Micro Devices [AMD] AMD-768 [Opus] ACPI
Control: I/O- Mem- BusMaster- SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort- >SERR- <PERR-

00:10.0 PCI bridge: Advanced Micro Devices [AMD] AMD-768 [Opus] PCI (rev
05) (prog-if 00 [Normal decode])
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz+ UDF- FastB2B- ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort+ >SERR- <PERR-

           Latency: 64
           Bus: primary=00, secondary=02, subordinate=02, sec-latency=69
           I/O behind bridge: 00002000-00002fff
           Memory behind bridge: f4900000-f5ffffff
           Prefetchable memory behind bridge: fb000000-fcffffff
           BridgeCtl: Parity- SERR- NoISA+ VGA+ MAbort- >Reset- FastB2B-

01:05.0 VGA compatible controller: Matrox Graphics, Inc. MGA G200 AGP (rev 01) (prog-if 00 [VGA])
Subsystem: Matrox Graphics, Inc. MGA-G200 AGP
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort- >SERR- <PERR-

           Latency: 128 (4000ns min, 8000ns max), cache line size 10
           Interrupt: pin A routed to IRQ 5
           Region 0: Memory at fa000000 (32-bit, prefetchable) [size=16M]
           Region 1: Memory at f4800000 (32-bit, non-prefetchable)
[size=16K]
           Region 2: Memory at f4000000 (32-bit, non-prefetchable) 

[size=8M]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: [dc] Power Management version 1
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-
Capabilities: [f0] AGP version 1.0
Status: RQ=31 SBA+ 64bit- FW- Rate=x1,x2
Command: RQ=31 SBA+ AGP+ 64bit- FW- Rate=x2

02:00.0 USB Controller: Advanced Micro Devices [AMD] AMD-768 [Opus] USB (rev 07) (prog-if 10 [OHCI])
Subsystem: Advanced Micro Devices [AMD] AMD-768 [Opus] USB
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap- 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort- >SERR- <PERR+

           Latency: 64 (20000ns max)
           Interrupt: pin D routed to IRQ 10
           Region 0: Memory at f4900000 (32-bit, non-prefetchable) 

[size=4K]

02:04.0 VGA compatible controller: Matrox Graphics, Inc. MGA G200 (rev
01) (prog-if 00 [VGA])
Subsystem: Matrox Graphics, Inc. Millennium G200 SD
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort- >SERR- <PERR-

           Latency: 128 (4000ns min, 8000ns max), cache line size 10
           Interrupt: pin A routed to IRQ 11
           Region 0: Memory at fb000000 (32-bit, prefetchable) [size=16M]
           Region 1: Memory at f4904000 (32-bit, non-prefetchable)
[size=16K]
           Region 2: Memory at f5000000 (32-bit, non-prefetchable) 

[size=8M]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: [dc] Power Management version 1
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

02:06.0 Multimedia audio controller: Creative Labs SB Live! EMU10k1 (rev 07)
Subsystem: Creative Labs: Unknown device 8064
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort- >SERR- <PERR-

Latency: 64 (500ns min, 5000ns max)
Interrupt: pin A routed to IRQ 5
Region 0: I/O ports at 2080 [size=32]
Capabilities: [dc] Power Management version 1
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

02:06.1 Input device controller: Creative Labs SB Live! MIDI/Game Port (rev 07)
Subsystem: Creative Labs Gameport Joystick
Control: I/O+ Mem- BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort- >SERR- <PERR-

Latency: 64
Region 0: I/O ports at 20a0 [size=8]
Capabilities: [dc] Power Management version 1
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

02:07.0 VGA compatible controller: Matrox Graphics, Inc. MGA G200 (rev
01) (prog-if 00 [VGA])
Subsystem: Matrox Graphics, Inc. Millennium G200 SD
Control: I/O- Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort- >SERR- <PERR-

           Latency: 128 (4000ns min, 8000ns max), cache line size 10
           Interrupt: pin A routed to IRQ 10
           Region 0: Memory at fc000000 (32-bit, prefetchable) [size=16M]
           Region 1: Memory at f4908000 (32-bit, non-prefetchable)
[size=16K]
           Region 2: Memory at f5800000 (32-bit, non-prefetchable) 

[size=8M]
Expansion ROM at <unassigned> [disabled] [size=64K]
Capabilities: [dc] Power Management version 1
Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot-,D3cold-)
Status: D0 PME-Enable- DSel=0 DScale=0 PME-

02:08.0 Ethernet controller: 3Com Corporation 3c905C-TX/TX-M [Tornado] (rev 78)
Subsystem: Tyan Computer: Unknown device 2466
Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV+ VGASnoop-
ParErr- Stepping- SERR- FastB2B-
Status: Cap+ 66Mhz- UDF- FastB2B- ParErr- DEVSEL=medium

Quoted 1 line

TAbort- <TAbort- <MAbort- >SERR- <PERR-

           Latency: 80 (2500ns min, 2500ns max), cache line size 10
           Interrupt: pin A routed to IRQ 10
           Region 0: I/O ports at 2000 [size=128]
           Region 1: Memory at f4901000 (32-bit, non-prefetchable)

[size=128]
Expansion ROM at <unassigned> [disabled] [size=128K]
Capabilities: [dc] Power Management version 2
Flags: PMEClk- DSI- D1+ D2+ AuxCurrent=0mA
PME(D0+,D1+,D2+,D3hot+,D3cold+)
Status: D0 PME-Enable- DSel=0 DScale=2 PME-

[8] Some informations that may be usefull
*** Just down-grading to the kernel 2.4.8 solves the problem *** I have several graphic cards in my P.C. (one AGP and 2 PCI), but using only one PCI cause the problem to occur.
*** I have a SMP machine, but I have tried using only one processor, same problem.
*** I have tried official kernel 2.4.20, with the same problem *** I also tried to use OSS emu10k1-v0.20a drivers: always the same:
problem doesn't occurs with 2.4.8 but occurs with 2.4.19 and 2.4.20 *** I was thinking about some timings changed for PCI bus since kernel 2.4.8 ?

*** As I said before, if I get a positive response, I will do my best to help to find the bug. But If you think this problem isn't really important, I don't want to spend hours to find it ...

Thanks,
Xavier

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Signature · 8 lines
------------------------------------------------------------------------
Herman Oosthuysen
B.Eng.(E), Member of IEEE
Wireless Networks Inc.
http://www.WirelessNetworksInc.com
E-mail: [email protected]
Phone: 1.403.569-5687, Fax: 1.403.235-3965
------------------------------------------------------------------------