[mythtv-users] Firewire troubles after upgrade. Is test-mepg2 mightier than MythTV?

[Jarod Wilson]

On Wed, Jan 27, 2010 at 12:58 PM, Aaron <aaron at rb303.net> wrote:
> On Wed, Jan 27, 2010 at 1:30 AM, Jarod Wilson <jarod at wilsonet.com> wrote:
>> On Wed, Jan 27, 2010 at 1:22 AM, Aaron <aaron at rb303.net> wrote:
>>> In layman's terms, if I download the latest 33 kernel (2.6.33-rc5),
>>> compile and install it my firewire recording should clear up a bit?
>>>
>>> BOTH of my firewire cards are listed in this thread; 23 and 22/A
>>
>> Quite possibly, yes. Dual-buffer should already be disabled on the
>> 22/A going back a kernel version or three, but the 23 will still run
>> dual-buffer anything other than 2.6.33.
>>
>
> I've tried compiling the 33-rc5 kernel from kernel.org, but have now
> run into a couple bugs with dkms and nvidia-common. Both of which seem
> to make it a stopping point for me.

So patch an earlier kernel. Its a dead-simple change to backport. :)

> So... in looking for a new firewire card that does not have the 22/A
> or 23 chipset, I searched the gossamer-threads and found that people
> have been using the 23 chipset with no issues for quite some time.
> This makes me wonder, what am I doing wrong? Jarod, you have the exact
> same STB as I do QIP-6200 from Verizon (or at least had, not sure if
> you still have it).
>
> What should I do...
> Buy a new card?
> Keep trying to compile and install the new kernel?
> Wait?

Well...

> Here is info about my setup:
> Linux gazerbeam 2.6.31-17-generic-pae #54-Ubuntu SMP Thu Dec 10
> 17:23:29 UTC 2009 i686 GNU/Linux

...this says you're running ubuntu, which defaults to the old firewire
stack, if I understand correctly. So I don't know that a newer kernel
is going to help in this case. The patch is specific to the newer
firewire stack. Not sure what to tell you in that case, since the old
stack doesn't ever enable dual-buffer mode, making the patch
irrelevant. Unless of course, you're actually running the newer stack.

For whatever its worth, my cable box is hooked to a mac mini, which
has an onboard Agere FW323 chipset (which is OHCI 1.1-capable, but
reports itself as 1.0, so it doesn't and didn't ever use dual-buffer).

-- 
Jarod Wilson
jarod at wilsonet.com