[mythtv-users] strange 1920x540 with nvidia

Seth Daniel mythtv.org at sethdaniel.org
Tue Feb 20 01:49:22 UTC 2007

On Mon, Feb 19, 2007 at 08:31:22PM -0500, Calvin Harrigan wrote:
> Seth Daniel wrote:
> > The problem is that when I select the 1920x1080 mode I get only a
> > 'virtual' screen of 1920x1080 (the nvidia driver calls this the
> > 'backend' resolution).  I get a visible screen (frontend) of 1920x540.
> > Everything is chopped off in the middle (video playback is chopped in
> > the middle, the mythtv frontend is chopped in the middle, etc...).
> > This is with the 9xxx nvidia drivers.  
> >
> > When I use the 8xxx driver I can get 1920x1080i, but I get the black
> > screen when trying to play any video.  If I am using, say, mplayer to
> > play something at this resolution then mplayer will become nearly
> > impossible to kill and the window it created will not un-map even if I
> > 'kill -9' the mplayer process (the process will eventually go away but
> > the black, empty window sticks around).  The only potential error
> > messages that I see are the '(WW) NVIDIA(0): WAIT(...)' messages that I
> > get in my Xorg.0.log file.  The myth logs say nothing when I try to
> > watch tv at 1920x1080i with the 8xxx drivers.
> >
> > Currently I am running everything at 1280x720p.  It looks fine but I
> > know my TV can do 1920x1080i. :-( 
> >
> This wouldn't happen to be a sony tv would it?
> I'm having similar problems with any interlaced mode usng the 9xxx drivers.
> It think it's a problem with the edid and how the driver interprets it.
> Drivers 8756 seems to interpret it properly, but I wanted to have the
> useevents option.
> The mode is defined as 1920x540 in EDID.
> What is the native resolution of the TV?

This is a JVC 56WP84.  It is a CRT RPTV that I bought in early 2004.
According to nvidia-settings the native resolution is 1920x1080.  I
don't know that a 'native resolution' makes much sense on a CRT RPTV
since it can do any number of resolutions.   But I may not understand
the phrase entirely.

nvidia-settings thinks it is a DFP.  

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

More information about the mythtv-users mailing list