[mythtv-users] Black screen after half an hour recording

[gkanis at cems.umn.edu]

An update to the black screen issue.

First of all it is not entirely black. It is dark and the figures are in red. 
I can hardly see anything.

I was recording something from NGC which was an hour long and although at the 
beginning the picture was fine, after about half an hour it became dark, as I 
describe above.

Vasilis

On Tuesday 03 February 2004 02:21 pm, gkanis at cems.umn.edu wrote:
> OK,
>
> Here we are:
>
> video output device: Radeon 7500 or if you prefer ATI Technologies Inc
> Radeon RV200 QW [Radeon 7500] (prog-if 00 [VGA])
>
> xv picture controls enabled: No, I have not enabled them and here is what
> xvinfo says:
> I have two adaptors:
> 1) Adaptor #0: "video4linux"
>     number of ports: 1
>     port base: 69
>     operations supported: PutVideo
>
> and
> 2) Adaptor #1: "ATI Radeon Video Overlay"
>     number of ports: 1
>     port base: 70
>     operations supported: PutImage
>
> I think you now have all that you asked me .... hoped so :-)
>
> Does this help to indentify the problem... ?
>
> Vasilis
>
> On Tuesday 03 February 2004 01:34 pm, Patrick Reynolds wrote:
> > > dmesg gives this:
> > > bttv0: skipped frame. no signal? high irq latency?
> > > [main=d519000,o_vbi=ad1d000,o_field=d519020,rc=ad1d01c]
> >
> > I see that sometimes, too.  You may get it less if you pick less
> > demanding encoding settings (e.g., lower resolution or RTJPEG instead of
> > MPEG4).  If you're happy with the output quality (that is, you're not
> > seeing annoying skips or frame-drops), then don't worry about it.
> >
> > > video output device: no idea?
> >
> > He means your video card.  lspci -v and look for "VGA compatible
> > controller."
> >
> > > xv picture controls enabled: no idea?
> >
> > Try 'xvinfo'.  You should get 'screen #0' with one adaptor, 'PutImage'
> > supported, and some supported visuals.  If you don't get all of that,
> > then you probably don't have Xv.
> >
> > > Watching LiveTv uses 50% of the CPU capacity.
> >
> > That's normal!  Live TV is constantly recording to disk so that you can
> > pause or rewind.
> >
> > > I recorded a movie and transcode used 60% of CPU capacity (but I think
> > > that this is normal).
> >
> > I would expect transcode to use 100% unless something else (e.g., Live
> > TV) was running at the same time.
> >
> > --Patrick
>
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