[asterisk-users] TDM400P FXO click sounds

[Stephen Bosch]

Hi, Gustavo:

ggonzalez at telviso.com.ar wrote:
> Hi all and thanks for every suggest about my problem, I found that my TDM400P
> was sharing IRQ with onboard sound device using cat /proc/interrupts, lspci -v
> and lspci -vb. When I disable all unnecessary hardware on my machine and test
> it, clicking sounds continue on the line with the same intensity; again using
> lspci -vb i found that:
> 
> 01:00.0 VGA compatible controller: VIA Technologies, Inc. Unknown device 3230
> (rev 11) (prog-if 00 [VGA])
>         Subsystem: Micro-Star International Co., Ltd. Unknown device 7253
>         Flags: bus master, 66MHz, medium devsel, latency 64, IRQ 11
>         Memory at c0000000 (32-bit, prefetchable)
>         Memory at dd000000 (32-bit, non-prefetchable)
>         Capabilities: [60] Power Management version 2
>         Capabilities: [70] AGP version 3.0
> 
> 04:04.0 Communication controller: Tiger Jet Network Inc. Tiger3XX Modem/ISDN
> interface
>         Subsystem: Unknown device b119:0003
>         Flags: bus master, medium devsel, latency 64, IRQ 11
>         I/O ports at be00
>         Memory at dfaff000 (32-bit, non-prefetchable)
>         Capabilities: [40] Power Management version 2
>  
> Now TDM card share IRQ 11 with onboard vga controller. I have a sata raid 1
> level running on the box too and cat /proc/interrupts show me:
> 
>   0:   23572057          0    IO-APIC-edge  timer
>   1:        196          0    IO-APIC-edge  i8042
>   6:          3          0    IO-APIC-edge  floppy
>   7:          0          0    IO-APIC-edge  parport0
>   8:          0          0    IO-APIC-edge  rtc
>   9:          0          0   IO-APIC-level  acpi
>  14:         66          0    IO-APIC-edge  ide0
> 209:    3663990          0   IO-APIC-level  eth0
> 217:     403070          0   IO-APIC-level  libata
> 225:   95602389          0   IO-APIC-level  wctdm
> NMI:       3824        180
> LOC:   23572106   23572083
> ERR:          0

You must ignore the IRQ flag in the lspci output when your system uses
IO-APIC.

Your /proc/interrupts doesn't seem to show a shared IRQ... are we sure
this is the real cause of the problem?

-Stephen-