[mythtv-users] LiveTV problem

David Watkins watkinshome at gmail.com
Tue Nov 22 13:08:38 UTC 2011

On 22 November 2011 11:33, Mike Perkins <mikep at randomtraveller.org.uk> wrote:
> On 21/11/11 15:48, Kris B. wrote:
>> On Monday, November 21, 2011 3:31 PM, "Tim Draper"<veehexx at gmail.com>
>> wrote:
>>> what are you classing as a 'bad' channel?
>>> i have weak signal on some channels and it can sometimes result in
>>> heavy blocking and audio glitching. i dont exhibit the issue the OP
>>> reports.
>>> however, i do have channels hidden from my tv listings, and there for
>>> unable to tune into them
>>> i'm wondering if you need to hide the problematic channels, or if this
>>> issue only presents itself under certain conditions on, what should
>>> be, working channels.
>> I am not the original poster, but I do get this problem as well, however
>> it is rare (1 or 2 times a year).
>> There is a channel that is local to me, but when it rains heavy just
>> right, I will get severe blocking and only a partial lock.  However, it
>> is the closest station to me (albeit off axis from my main antenna
>> receive lobe), and has the best local news for me for storms and such.
>> I can live with it not always being there, so I leave it on my regular
>> listing, and since it is 95% signal most of the time, it isn't a real
>> issue.  It is an NBC affiliate, but I get another NBC Affiliate without
>> this issue from another market where the antenna is pointed.
>> If I tune into that channel and lose the lock, myth will lockup and boot
>> me out.  When I try to watch livetv again, since the channel won't lock,
>> it fails and will kick me out again.  It doesn't even really give you a
>> warning what is happening, all you get is a black screen.  Sometimes you
>> don't even get kicked back to the main menu, you just get a black screen
>> with no information, schedule guide info - or anything.  No matter what,
>> I will be stuck in that loop.  Occasionally I can tune into another
>> channel when the channel with the partial lock will slightly lock for a
>> nanosecond, I can type another channel number in quickly and go about my
>> business.  If not, then I have to go into mythsetup (not stopping the
>> backend), reset the starting channel number on that card, and I am good
>> to go.
>> The fix, I guess, would be if there is no lock after 10-15 seconds, go
>> up a full channel number and give a warning that previous channel failed
>> to lock.
> That solution works fine for LiveTV, but not so good if the system is attempting
> to record something...
> Remember, LiveTV is just a specialized kind of recording anyway. Would you
> rather your scheduled recording be aborted and rescheduled, or would you rather
> have a recording of something random from an arbitrarily selected channel?
> I think in these circumstances, an abort back to the menu should be the only
> response available. For LiveTV, a means for the user to pre-select the channel
> might be the way to then deal with this issue.
> --
> Mike Perkins
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