Bug#1033849: Acknowledgement (libffado2: Firewire device disconnects after a while.)

[Alexandre Lymberopoulos <lymber@gmail.com>]

Dear all,

I heard that VIA chipsets does not work well with those cards (mine is a
VIA 6315 on a PCIExpress card). Should I consider getting another card
with Texas Instruments chipset? Is it required to power in that card
with its MOLEX input or the power coming from the slot is enough? Should
I use the external AC adapter (this last one is what I'm doing with no
improvements)?

Any help would be largely appreciated and I'm available to help as I
can. Another incident led the following on dmesg:

[  754.550709] snd_bebob fw1.0: Detect discontinuity of cycle: 4670 4679

and after a while

[ 1561.332132] snd_bebob fw1.0: Detect discontinuity of cycle: 59487 59496
[ 1789.828800] snd_bebob fw1.0: Detect discontinuity of cycle: 31497 31505
[ 1831.919030] snd_bebob fw1.0: Detect discontinuity of cycle: 48161 48169
[ 1840.081206] snd_bebob fw1.0: Detect discontinuity of cycle: 49593 49602

Heard some clicks (probably in the timestamp above) and the car stopped
playing. Left the computer and when I got back, I went to qwgraph to
check connections and the removed an extra connection from firefox to a
channel of the 410 and the card worked normally, but not for too much:

[13364.296669] firewire_ohci 0000:01:00.0: DMA context IT0 has stopped, error code: evt_timeout
[13364.296766] firewire_ohci 0000:01:00.0: DMA context IR0 has stopped, error code: evt_descriptor_read

This is the current state as reported by ffado-test:

~# ffado-test ListDevices
-----------------------------------------------
FFADO test and diagnostic utility
Part of the FFADO project -- www.ffado.org
Version: 2.4.7
(C) 2008-2021, Daniel Wagner, Pieter Palmers and others
This program comes with ABSOLUTELY NO WARRANTY.
-----------------------------------------------

=== 1394 PORT 0 ===
  Node id  GUID                  VendorId     ModelId   Vendor - Model
   0       0x000d6c01007b89ea  0x00000D6C  0x00010046   M-AUDIO - FW 410
   1       0x0011066600000009  0x00001106  0x00000000   Linux Firewire - 
no message buffer overruns

Hope to hear from you soon.

Best, Alexandre
-- 
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Alexandre Lymberopoulos - lymber@gmail.com
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