[mythtv-users] Problems with LiveTV

[Steven Adeff]

On 7/31/06, Jeff <jeff at propixs.com> wrote:
> Steven Adeff wrote:
> > On 7/28/06, Jeff <jeff at propixs.com> wrote:
> >> This is my first post so please be kind....
> >>
> >>  I've been running mythtv for about two years now and about a month ago
> >> upgraded (rebuilt) my system and am now running the latest .19-fixes
> >> from
> >> gentoo which I do believe is the latest .19-fixes (10505) and have had
> >> problems ever since upgrading with liveTV locking up and HDTV dropping
> >> frames for 720P video until after I pause/unpause it then plays back
> >> smoothly most of the time (this problem was evident in .18.1 also)
> >>  As far as liveTV every time it locks up the the frontend log fills
> >> up with
> >> " Ignoring livetv eof in decoder loop" until I exit liveTV and of course
> >> this happens at the show transition.
> >>  Also an interesting note I've seen is fairly frequently I get these
> >> messages in the frontend logs (using OpenGL for Video Timing):
> >>  2006-07-27 20:14:00.522 NVP: Video is 3.85111 frames ahead of audio,
> >> dropping frame.
> >>  2006-07-27 20:14:00.524 NVP: Video is 4.43182 frames ahead of audio,
> >> dropping frame.
> >>
> >>  And the last Observation I had with the .19-fixes is when I view the
> >> position of the playback it is normally somewhere between 3 seconds
> >> behind
> >> to practically zero seconds behind which strikes me as very odd.  I
> >> don't
> >> know if it makes any difference but I am using a set top box controlled
> >> through an IR blaster and when changing channels mythtv records the
> >> actual
> >> channel change (I can see the button presses displayed on the OSD for
> >> the
> >> STB) so maybe thats why it isn't very far behind live.
> >>
> >>  My real question is I haven't seen much traffic on the list recently
> >> with
> >> regards to livetv lockups and wanted to know if I am the only one
> >> that is
> >> having these problems.  If so anyone got some pointers.  I really
> >> don't want
> >> to have to try to get back to  .18.1 but my wife is going to kill me
> >> if the
> >> TV keeps locking up.
> >>
> >>  Thanks
> >>  Jeff
> >
> >
> > is your recordings drive remotely mounted? what deinterlace filter are
> > you using? are you using XvMC? If you have an Nvidia card, which
> > driver version?
> >
> Locally mounted non-raid.  It was Raid 5 for a while but switched it to
> a non-raid non-lvm setup in an attempt to fix the problem, and I will
> say that it got a little better.
>
> Deinterlace filter is Kernel.   No XvMC.  And a Nvidia 5200 with driver
> 7174.  When watching liveTV my CPU show about 90% idle.
>
> Also, didn't include it above (oops) the lockups occur with both my
> pvr350 and HD-3000 but normally the HD-3000 shows an error screen saying
> "an error was encountered  while displaying video" and in-case it
> matters the ivtv drivers at 0.6.3.  But almost all livetv viewing is on
> the 350.
>

try turning off the deinterlace filter when playing back 720p.
Use of 1.0.8756 or 1.0.7676 of the nvidia driver should allow you to
run Bob or Onefield as a deint filter that will work for 480i, 720p
and 1080i.

-- 
Steve
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