[mythtv-commits] Ticket #2965: ATSC QAM256 channels fail to tune (partial lock) that are working channels with xine and vlc

[MythTV]

#2965: ATSC QAM256 channels fail to tune (partial lock) that are working channels
with xine and vlc
--------------------------------------------------------+-------------------
 Reporter:  Wylie Swanson <wylie.swanson at pingzero.com>  |       Owner:  ijr    
     Type:  defect                                      |      Status:  new    
 Priority:  major                                       |   Milestone:  unknown
Component:  mythtv                                      |     Version:  0.20   
 Severity:  medium                                      |  
--------------------------------------------------------+-------------------
 MythTV gets partial lock on (good working) channels.  The same channels
 are viewable Xine (in case with Air2PC) and with VLC  (with HDHomeRun).  I
 suppose it is how my cable company is broadcasting, but the streams can be
 viewed.  There has been some discussion about this on HDHomeRun forum.

 I added a HDHomeRun to my environment today.  About six months ago on my
 Air2PC (ATSC/QAM256 cable), I noticed Partial Lock (no audio/video) on a
 few channels that had previously worked (SVN mid-to-early 2006).

 Today, with HDHomeRun, I am seeing the same thing.  Mythtv-setup can
 sometimes find all of the important channels (and a bunch of channels that
 don't matter).  However, mythfrontend shows partial lock in the tuning
 phase.  There was a patch around the 17th that was a significant
 improvement, but the mythfrontend still gets partial lock.

 From reading the forums, SageTV does not have the same problem (of course,
 there is no way I am switching from MythTV!).  For me, the channels can be
 viewed from xine on the Air2PC and using vlc for the HDHomeRun.

 I am happy to provide more diagnostic (and quickly).  Let me know what
 information would be helpful (e.g. cmdlines for mythfrontend or backend
 with relevant diag).  For the record, I have Cox Cable in Phoenix,
 Arizona.

 best regards,
 W

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Ticket URL: <http://svn.mythtv.org/trac/ticket/2965>
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