[mythtv-users] Any hope for 1080i content at 1080i with nVidia?

Seth Daniel mythtv.org at sethdaniel.org
Fri Aug 24 00:07:13 UTC 2007


On Thu, Aug 23, 2007 at 07:56:12PM -0400, Doug Larrick wrote:
> Seth Daniel wrote:
> 
> > I don't know if it's the TV, the driver, or just my incompetence, but I
> > cannot get 1920x540 (the 540pw mode described in the above link) to
> > work.  My custom 1080i mode is:
> > 
> >   Mode "1080i"
> >     DotClock 74.25
> >     HTimings   1920 2008 2052 2200
> >     VTimings   1080 1084 1089 1124
> >     Flags      "Interlace" "+HSync" "+VSync"
> >   EndMode
> > 
> > For the 540pw mode I changed it to:
> > 
> >   Mode "540pw"
> >     DotClock   79.912
> >     HTimings   1920 2008 2052 2200
> >     VTimings   540   542  544  562
> >     Flags      "+HSync" "+VSync"
> >   EndMode
> 
> If you have a working 1080i mode, you want the 540pw vertical timings to
> be *exactly* half of the corresponding numbers in the 1080i mode.
> Everything else should be identical.  You want the TV to think it's
> still receiving a 1080i mode.

They are exactly half.  Hmmm.  Except for 544...what's exactly half of
1089?  Can you place fractional values in the vtimings section?


-- 
seth / @sethdaniel.org
Eat drink and be merry, for tomorrow they may make it illegal.


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