<div dir="ltr"><div> </div><div class="gmail_extra"><br><div class="gmail_quote">On 15 September 2014 14:03, Andrew Potter <span dir="ltr"><<a href="mailto:andrew@potter.id.au" target="_blank">andrew@potter.id.au</a>></span> wrote:<br><blockquote style="margin:0px 0px 0px 0.8ex;padding-left:1ex;border-left-color:rgb(204,204,204);border-left-width:1px;border-left-style:solid" class="gmail_quote"><span><br>
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-----Original Message-----<br>
From: <a href="mailto:mythtv-users-bounces@mythtv.org">mythtv-users-bounces@mythtv.org</a><br>
[mailto:<a href="mailto:mythtv-users-bounces@mythtv.org">mythtv-users-bounces@mythtv.org</a>] On Behalf Of Mark Perkins<br>
Sent: Monday, 15 September 2014 10:26 PM<br>
To: Discussion about MythTV<br>
Subject: Re: [mythtv-users] Zero Byte Recordings<br>
<br>
</span><span>Have you tried going to LiveTV then manually changing to one of your<br>
recording tuners (press m, source, switch input, then select tuner 1). Then<br>
check each channel one at a time (channel up / down) and check that you can<br>
see all these channels with LiveTV and your recording tuners (as opposed to<br>
your LiveTV tuner which is the least likely to get used for recordings).<br>
<br>
What region are you in? Have you gone to <a href="http://retune.digitalready.gov.au" target="_blank">http://retune.digitalready.gov.au</a><br>
to check whether you are affected by the channel restack? I don't suppose<br>
you are eastern South Australia or maybe Murrumbidgee / Upper Murray given<br>
your channel numbering, there have been various changes scheduled around<br>
June / July / August which might align with your problems? You might need to<br>
rescan to pick up changes in frequencies.<br>
<br>
I'm just guessing here.<br>
____________________________<br>
<br>
</span>Mark,<br>
<br>
Thanks for replying.<br>
<br>
OK tried changing the channels as you suggested and I thought you had nailed<br>
it. I was unable try to access the back-end setup and fix it right away as<br>
some waf recordings are happening (that are working). They are not scheduled<br>
to finish for an hour or two.<br>
<br>
There is one recording that is currently showing as zero bytes (still<br>
showing as recording though) using tuner number 1. I changed the current<br>
input to that adapter and there was nothing visible, just a black screen. As<br>
it was recording it would not allow me to change the channel. So I stopped<br>
the recording (it wasn't working anyway). Then retuned to that tuner. It<br>
started on abc and was displaying a picture correctly. Changed to all the<br>
other channels also, i.e. Prime, Win and Southern Cross. All displayed<br>
picture and audio fine, so now I am baffled. It appears that the tuner<br>
sometimes does not tune correctly.<br>
<br>
I think I need to read up on unloading the tuners before shutting down to<br>
try and get away from the warm start issues.<br>
<span><font color="#888888"><br>
</font></span>I'm assuming your source is DVB-T?</blockquote></div><div> </div><div>There were some adjustable tuning delay parameters in the card setup section of mythtv-setup which I had to increase a while ago to get reliable recordings from one of my DVB cards, though I can't remember if the symptom was zero-byte recordings or just failed recordings.</div><div> </div><div>It's possible that when your box is cooler the cards take longer to get a lock? It's a pure guess - but it wouldn't do any harm to tweak the defaults up a bit.</div><div> </div><div>(WARNING. I'm not running the latest MythTV version - these settings may have disappeared now)</div></div></div>