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Ticket #10741: Changing channels in LiveTV with HDPVR periodically fails on remote frontend

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noreply at mythtv

May 19, 2012, 5:21 PM

Post #1 of 4 (116 views)
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Ticket #10741: Changing channels in LiveTV with HDPVR periodically fails on remote frontend

#10741: Changing channels in LiveTV with HDPVR periodically fails on remote
frontend
----------------------------+--------------------------------------------
Reporter: mitch.capper@… | Type: Bug Report - Hang/Deadlock
Status: new | Priority: major
Milestone: unknown | Component: MythTV - General
Version: Master Head | Severity: medium
Keywords: | Ticket locked: 0
----------------------------+--------------------------------------------
When in liveTV on a remote frontend tuned with the HDPVR and changing to a
new channel on the HDPVR the change to the new channel plays for 2 seconds
or so then pauses then freezes.

Problem is not reproducible with other inputs including dual tuner hd home
run or hd5500. Problem only occurs on remote frontends. Problem does not
occur with -prerecorded programs. Problem does not happen with initially
entering live-tv only when changing channels when the HDPVR is already
tuned to a specific channel and is changed to another. Problem occurs if
the guide is on screen or when changing just using the OSD with channel up
and down.
Frontend and backend should be are within 1 second of each other for time.
Currently running on 568e161f39a33cde70ba1a74081ab46d28006a2c (may 4th)
Has been happening for at least many months.

Tried with signal_timeout set to 1000 and 4000 and channel_timeout at 3000
and 12000 on the hdpvr card.

I attached the log files running with -v all and without -v at all. Both
showing the same situation. For the non verbose a timeline is:
16:36:28 - enter live TV and enters without problem on channel 280
16:36:51 - hit guide button
16:37:18 - changed to channel 278
16:37:30 - playes a few seconds of video and freezes
16:37:43 - plays another second of video completed frozen
16:38:16 - kicked out of live TV video buffering error

On the frontend running local to the backend it shows a similar behavior
with a pause when changing channels after playing a 2-3 seconds of video
but then it continues normally.

For the verbose logs the channel change is at 16:21:36 channel was changed
to a new channel(280)

--
Ticket URL: <http://code.mythtv.org/trac/ticket/10741>
MythTV <http://code.mythtv.org/trac>
MythTV Media Center
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noreply at mythtv

May 19, 2012, 5:22 PM

Post #2 of 4 (116 views)
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Re: Ticket #10741: Changing channels in LiveTV with HDPVR periodically fails on remote frontend [In reply to]

#10741: Changing channels in LiveTV with HDPVR periodically fails on remote
frontend
----------------------------------------+-----------------------------
Reporter: mitch.capper@… | Owner:
Type: Bug Report - Hang/Deadlock | Status: new
Priority: major | Milestone: unknown
Component: MythTV - General | Version: Master Head
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------------+-----------------------------

Comment (by mitch.capper@…):

Logs are 2M zipped so they are hosted at http://mitchcapper.com/myth-
logs.zip

--
Ticket URL: <http://code.mythtv.org/trac/ticket/10741#comment:1>
MythTV <http://code.mythtv.org/trac>
MythTV Media Center
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noreply at mythtv

May 20, 2012, 7:07 PM

Post #3 of 4 (108 views)
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Re: Ticket #10741: Changing channels in LiveTV with HDPVR periodically fails on remote frontend [In reply to]

#10741: Changing channels in LiveTV with HDPVR periodically fails on remote
frontend
----------------------------------------+-----------------------------
Reporter: mitch.capper@… | Owner:
Type: Bug Report - Hang/Deadlock | Status: new
Priority: major | Milestone: unknown
Component: MythTV - General | Version: Master Head
Severity: medium | Resolution:
Keywords: | Ticket locked: 0
----------------------------------------+-----------------------------

Comment (by mitch.capper@…):

After trying several different things upgrading the HDPVR firmware from
the recommended 1.5.7, from June 17, 2010 to Mar 7 2012 and the problem
is gone. This was the only change made to resolve the issue. As far as I
am concerned this ticket can be closed.

--
Ticket URL: <http://code.mythtv.org/trac/ticket/10741#comment:2>
MythTV <http://code.mythtv.org/trac>
MythTV Media Center
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noreply at mythtv

May 21, 2012, 2:01 PM

Post #4 of 4 (103 views)
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Re: Ticket #10741: Changing channels in LiveTV with HDPVR periodically fails on remote frontend [In reply to]

#10741: Changing channels in LiveTV with HDPVR periodically fails on remote
frontend
----------------------------------------+------------------------------
Reporter: mitch.capper@… | Owner:
Type: Bug Report - Hang/Deadlock | Status: closed
Priority: minor | Milestone: unknown
Component: MythTV - General | Version: Master Head
Severity: medium | Resolution: Upstream Bug
Keywords: | Ticket locked: 0
----------------------------------------+------------------------------
Changes (by kenni):

* priority: major => minor
* status: new => closed
* resolution: => Upstream Bug

Comment:

Thank you for reporting back.

--
Ticket URL: <http://code.mythtv.org/trac/ticket/10741#comment:3>
MythTV <http://code.mythtv.org/trac>
MythTV Media Center
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