[mythtv-users] Change Channel After Some Hours causes Stop Start AV Cycling - MythBuntu 8.04.1 - Analogue PVRs

[Tortise]

Hi Nick
Thank you for the detailed comments and very helpful tips.
Kind regards
David



----- Original Message ----- 
From: "Nick Rout" <nick.rout at gmail.com>
To: "Discussion about mythtv" <mythtv-users at mythtv.org>
Sent: Monday, September 22, 2008 11:06 AM
Subject: Re: [mythtv-users] Change Channel After Some Hours causes Stop Start AV Cycling - MythBuntu 8.04.1 - Analogue PVRs


On Fri, Sep 19, 2008 at 2:03 PM, Tortise <tortise at paradise.net.nz> wrote:
> Nick
> I guess you must have a degree of seriousness in your response!  (Thank you)
> I gather you are saying one should plan to not watch liveTV, at least with myth, an interesting proposition.
> Given the nature of the market place, I should have thought if mythtv is not reliable with LiveTV, that part of the development
> thrust might be looking to remedy this?
> Are there any URL's anyone can suggest about this?
> Kind regards
> David

It wasn't entirely tongue in cheek. Channel surfing and liveTV are not
MythTV's strengths. (channel flipping always takes longer than most
STB's or TV built in tuners given the delay inherent in caching
everything to disk and playing back from disk).

If you look through the archives many people are negative about
LiveTV. When you can record what you want to watch and watch it when
you want to do so, why be constrained at all by the networks'
timetable. Plus if you watch a recorded stream you can flick through
the ads, and end up spending 45 minutes watching an hour long
programme. I often get home after 6.00 pm, but I can always watch the
6.00 o'clock news.

A PVR is a different paradigm to livetv. Thats the way the devs see it
and thats often the response to complaints/problems with livetv. I'd
like to see MythTV be good at both, but the reality is that the
development effort goes into making a good PVR rather than a good Set
Top Box.

Even still your machine should handle LiveTV for hours on end, but it
may be that there is a bug in a driver that doesn't show up until its
been running a few hours. I know you are using a newer card which may
have driver bugs. This is only a guess on my part.

Also you won't lose your buffer if you exit MythTV and go back in.
LiveTV is stored in a different recording group and normally deleted
after (I think) 24 or 48 hours. It won't show up in Recorded Programs
unless you set it to show stuff in the LiveTV group. Precise button
pushes to do that are not on the tip of my tongue and I don't have
MythTV here to test it.

>
> ----- Original Message -----
> From: "Nick Rout" <nick.rout at gmail.com>
> To: "Discussion about mythtv" <mythtv-users at mythtv.org>
> Sent: Thursday, September 18, 2008 2:25 PM
> Subject: Re: [mythtv-users] Change Channel After Some Hours causes Stop Start AV Cycling - MythBuntu 8.04.1 - Analogue PVRs
>
>
>> When I leave it running a few hours, then change channels, they jerk and
>> stop and start - about half a second running AV, then stops half a second -
>> and continues like this.  CPU Jumps to 95%.  Happens on both boxes!  Exiting
>> Myth and starting again fixes it, of course I lose the buffer also - this
>> option would preferably be avoided!
>>
>> Is this a known problem?
>
> Dave, running LiveTV is a known newbie problem :-)
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