[mythtv-users] nvidia help

[HP-mini]

On Tue, 2013-09-24 at 14:39 -0700, glen wrote:
> On 09/24/2013 01:25 PM, HP-mini wrote:
> > On Tue, 2013-09-24 at 12:23 -0700, glen wrote:

> >> has video.
> > Does the mobo have DVI output. Try a passive cable adapter.
> >
> > MythTV (from 0.24?) hard-coded the video frame sync to the framerate.
> > This results in sub-optimal playback if you can't use "perfect" screen
> > video modes.
> > It also makes no improvement for those who are using "perfect" modes.
> >
> > At least XBMC sees the sense in making that config option.
> thanx for the help. motherboard and video card both have dvi out. what 
> is a passive cable adapter ? do you mean go out of the dvi on the nvidia 
> and get cable converter to hdmi for tv connection. ?. i could go out of 
> the mobo dvi with convert to vga plug and to television, but then i 
> would have to switch to intel graphics and remove nvidia from unit or 
> possible just remove kernel module ? .. not sure what you are suggesting.


The term "refurbished" has lots of bad connotations..

Best way to test VDPAU is outside of mythtv by using vdpautest or
qvdpautest and mplayer.

The video stuttering problems are much more likely related to desktop
effects manager/composite, disk or network I/O.

The mythtv frontend logs/stdout's pages of info when launched with
logging options.
mythfrontend -v playback

HDMI is electrically equivalent to single link DVI with an higher price
tag & nasty non-locking connector design.

If your mobo has DVI-A video output connector, you can use a passive DVI
to VGA.
You can always use DVI to HDMI passive adaptor (single link limited
1920x1200 at 60p). (HDA audio works over DVI).

The VGA inputs on modern TVs usually (intentionally) support standard
video modes with overscan & exclude native resolutions. So only use VGA
as a last resort.

Even the lowly (not recommended) GT210 measures up well against older
intel graphics, partly because of drivers but that is changing fast.
But I believe only the latest Haswell is good enough for HTPC that has
to support playback of interlaced video.
But GT210 & 510 & 620? are too slow to de-interlace well.