[mythtv-users] New system w poor quality picture

Brian Wood beww at beww.org
Wed Jun 10 22:51:05 UTC 2009


On Wednesday 10 June 2009 16:29:21 Steve V wrote:
> ----- Original Message ----
>
> > From: Jim Morton <Jim at Morton.hrcoxmail.com>
> > To: Discussion about mythtv <mythtv-users at mythtv.org>
> > Sent: Thursday, 11 June, 2009 8:53:26 AM
> > Subject: [mythtv-users] New system w poor quality picture
> >
> > Hi All,
> > I've been lurking here for only about a month so I'm still a little
> > wobbly on my Myth-feet. I just finished setting up a new Mythbuntu box
> > (my first) front-end / back-end combo, and was able to record and watch
> > live TV on it. This is just so freaking cool! But the quality of the live
> > tv picture is a little disappointing. It is a tiny bit jerky and nowhere
> > near as clean and clear as direct from antenna to TV. This is OTA only
> > from an HD digital antenna. I think I might need to set up this VDPAU
> > that everyone is talking about but I'm not real sure how I can even
> > determine that. Or it may be some other problem.
> >
> > Hardware:
> > TV - 42" Samsung LCD 1080P
> > Tuner - HD Homerun
> > Motherboard - Foxconn A7DA-S
> > CPU - AMD Athlon 64 X2 7750 Kuma 2.7Ghz dual core
> > Video - Asus silent GeForce 8400GS 64bit PCIe
> > Ram - Kingston 4GB PC2 8500
> > PSU - Corsair 400W
> > HDDs - Samsung 1TB x2 for video + Samsung 250GB for os
> >
> > Software: Mythbuntu 9.0.4 64bit
> >
> > Is there a how-to on setting up VDPAU and do you think I need it?
> >
> > -- _________________________________________________________
> >
> > Jim Morton 
> > _______________________________________________
> > mythtv-users mailing list
> > mythtv-users at mythtv.org
> > http://mythtv.org/cgi-bin/mailman/listinfo/mythtv-users
>
> Jerkiness, often means that the CPU is running at 100% plus can you run top
> in a terminal and advise CPU usage while watching a show. Your system
> should be capable of watching HD content without reaching 100% but worth
> checking to start with. If CPU is over 100% then VDPAU would probably help.

Or perhaps something as simple as selecting the "Slim" playback profile, or 
putting "UseEvents True" into the xorg.conf, though I'm not certain that line 
is still valid.

-- 
beww
beww at beww.org


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