Bug#555010: dvgrab: Dvgrab is uncompatible with new kernel ieee1394 stack
2009/11/8 Erik Schanze <email@example.com>:
> reassign 555010 linux-image-2.6.30-2-amd64 2.6.30-8
> Hi Fernando,
> Fernando Cerezal <firstname.lastname@example.org>:
>> I have updated the system and now I have 2.6.30-1-amd64 and libc6
>> 2.10.1-5. The same dvgrab and libieee1394.
>> * 533.138171] firewire_core: skipped bus generations, destroying all nodes
>> [ *533.636043] firewire_core: rediscovered device fw0
>> [ *533.729058] firewire_core: created device fw1: GUID 08004601048f7e83, S100
>> [ *533.729065] firewire_core: phy config: card 0, new root=ffc1, gap_count=5
>> [ *535.375660] firewire_core: phy config: card 0, new root=ffc1, gap_count=5
>> [ *537.019056] firewire_core: phy config: card 0, new root=ffc1, gap_count=5
> This seems to be a problem in the new fw stack, so I reassign the
> bug to the kernel.
I dont know if that messages show an error.
> The 686er version of this kernel works for me with dvgrab, so perhaps there
> is a problem only for amd64?
Maybe, I cant probe on other systems.
> Please install current version linux-image-2.6.30-2-amd64 and test it again.
I will try it as soon as #551286 be fixed.
> (I reassign it anyway, because there was nothing done on fw stack in the new
> version according changelog, so the bug will still be there.)
However, dvgrab starts play and then stop the camera, so dvgrab
comunicates with camera (using avc). Besides, with lib1394-8 installed
I get a video with several gaps per second, but get "something".
Firewire is a serial tecnology, dont exist some wires for control
(avc) and other for data, all uses the same wires. If the software
send avc (using libavc) commands to camera and it answers, and it get
complete frames from camera, using lib1394-8 instead of lib1398-11,
but not continue video, I think the problem is not from the kernel.
So, are you sure the problem is not related to lib1394 or dvgrab?
However, I will try to use the newer kernel.
Thank you very much.
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