[mythtv-users] 0 byte recordings with HD-PVR and Myth 0.28 on Ubuntu 14.04.2

[Jon Heizer]

On Wed, May 13, 2015 at 1:06 PM, Fred Hamilton <fred at yonkitime.com> wrote:

> On Wed, May 13, 2015 at 7:52 AM, Gary Buhrmaster <
> gary.buhrmaster at gmail.com> wrote:
>
>> On Wed, May 13, 2015 at 12:30 AM, Fred Hamilton <fred at yonkitime.com>
>> wrote:
>> > However "cat /dev/video0 > temp.ts" always works (if it's run before
>> > MythBackend tries to record something.  After Mythbackend tries and
>> fails,
>> > "cat /dev/video0 > temp.ts" starts producing zero byte recordings as
>> well.
>> > So it seems like the hardware and driver are OK until mythbackend tries
>> to
>> > use it.
>>
>> This suggests a more basic OS issue.  Did you happen
>> to upgrade the OS/kernel recently (or add another USB
>> device to the mix)?  There have been some recent fixes
>> in the kernel for various USB issues, and it is possible
>> that you are hitting a regression.
>
>
> That's sort-of what I'm thinking - something that was intermittent
> (perhaps unrelated) turned permanent after an update.  Unfortunately I
> haven't been logging system/Myth updates vs HD-PVR functionality.
>
> I don't *think* it's the OS because "cat /dev/video0 > temp.ts" works, and
> I have the same problem on Ubuntu 14.04.2 and a newly-installed 15.04 with
> different kernels (3.16 and 3.19).  So maybe it was a Myth 0.28 update?
>
>
>
My first guess would also to be trying to adjust the sleep at the end of
the channel changing script.

Jon
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