Mailing List Archive: MythTV: Users

HD-PVR spdif input will not work after channel change

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jnissley at nissley

May 16, 2010, 6:12 PM

Post #1 of 4 (463 views)
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HD-PVR spdif input will not work after channel change

I have been having this issue for some time and have just ignored it and
continued to use the stereo input for the HD-PVR. Now I want the 5.1
surround sound that comes with the HD channels.

Today I upgraded the firmware to the latest version just to make sure
that my firmware was not this issue and the problem still persists.

I have the component in and the spdif in set up. If I go into mythtv
and select the HD-PVR the channel will be displayed and I will have
sound. Once I change the channel I loose the sound 95% of the time. If
I use the stereo in I never have a sound problem. I am using the
timewarner HD STB. I have not tested if the stb is really outputting
sound after a channel change which is something I will try to figure out
how to test. Before I take the STB and move it somewhere to test the
output after a channel change is there anyone who has had this problem
before and if so how was it resolved.

Thank you.
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jerrymr at gmail

May 16, 2010, 6:52 PM

Post #2 of 4 (432 views)
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Re: HD-PVR spdif input will not work after channel change [In reply to]

On Sun, May 16, 2010 at 9:12 PM, John Nissley <jnissley [at] nissley> wrote:

> I have been having this issue for some time and have just ignored it and
> continued to use the stereo input for the HD-PVR. Now I want the 5.1
> surround sound that comes with the HD channels.
>
> Today I upgraded the firmware to the latest version just to make sure that
> my firmware was not this issue and the problem still persists.
>
> I have the component in and the spdif in set up. If I go into mythtv and
> select the HD-PVR the channel will be displayed and I will have sound. Once
> I change the channel I loose the sound 95% of the time. If I use the stereo
> in I never have a sound problem. I am using the timewarner HD STB. I have
> not tested if the stb is really outputting sound after a channel change
> which is something I will try to figure out how to test. Before I take the
> STB and move it somewhere to test the output after a channel change is there
> anyone who has had this problem before and if so how was it resolved.
>

In the last maybe two months, twice I've had a recording from the HD-PVR
with no sound. I record from component/spdif. Each time, the problem
disappeared by the next recording, so I was never able to diagnose it. I'm
using Verizon FIOS with a Motorola QIP-6200 STB. Sounds like your problem,
but I can't say for sure.

Sorry there's nothing helpful here, but I thought another data point
couldn't hurt.

-Jerry

fred at yonkitime

May 16, 2010, 9:30 PM

Post #3 of 4 (423 views)
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Re: HD-PVR spdif input will not work after channel change [In reply to]

On Sun, May 16, 2010 at 6:52 PM, Jerry Rubinow <jerrymr [at] gmail> wrote:

> On Sun, May 16, 2010 at 9:12 PM, John Nissley <jnissley [at] nissley>wrote:
>
>> I have the component in and the spdif in set up. If I go into mythtv and
>> select the HD-PVR the channel will be displayed and I will have sound. Once
>> I change the channel I loose the sound 95% of the time.
>
> In the last maybe two months, twice I've had a recording from the HD-PVR
> with no sound. I record from component/spdif.
>

I have the same problem, but it happens on less than 5% of my recordings. I
think it happens more often after my wife watches Live TV (I never do), but
I'm not sure.

-Fred

ylee at pobox

May 17, 2010, 10:22 AM

Post #4 of 4 (405 views)
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Re: HD-PVR spdif input will not work after channel change [In reply to]

John Nissley <jnissley [at] nissley> says:
> I have the component in and the spdif in set up. If I go into
> mythtv and select the HD-PVR the channel will be displayed and I
> will have sound. Once I change the channel I loose the sound 95% of
> the time.

Either use a channel-changing script that waits a second or two after
the change before exiting, or the signal-monitoring patches at
#6719/6611.

--
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Backend: Quad-core Xeon 1.6GHz, 6.6TB sw RAID 6
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