[mythtv-users] New HDTV: Which x resolution should I use?
adeffs.mythtv at gmail.com
Mon Nov 26 15:09:04 UTC 2007
On Nov 25, 2007 4:19 AM, Michael Rice <mikerice1969 at gmail.com> wrote:
> On Nov 24, 2007 6:07 PM, Steven Adeff <adeffs.mythtv at gmail.com> wrote:
> > On Nov 24, 2007 5:17 PM, Michael Rice <mikerice1969 at gmail.com> wrote:
> > > I have a new HDTV which is connected to the TV with DVI->HDMI cable. Looks good
> > > to me but I am new to HD so who knows... Anyway when I do nothing
> > > nvidia-auto-select
> > > chooses a virtual screen size of 1920x1080. The TV supposedly has a
> > > native resolution
> > > of 1366x768 (not sure how to verify that).
> > >
> > > So it would seem to me that for 720p recordings Myth/X would scale it up to
> > > 1920x1080 then the TV would end up scaling it back to 720p... True? Is there
> > > a better way to configure X for a better picture or better performance?
> > >
> > > Any help would be appreciated. The verbose EDID info is below.
> > <snip>
> > you will want to set up 3 resolutions in your xorg.conf, one for the
> > native resolution of the TV to use for the interface, the other two
> > being 720p and the 1920x1080 it's currently using. You can also set up
> > a 480p resolution but Xv should do fine in scaling SD material to
> > 720p. Then have Myth use the 720p modeline for 720p and 480 content
> > and the 1080 modeline for 1080i/p content letting the TV then scale
> > it.
> Saving the native resolution for later I added some modes to my xorg.conf:
> (II) NVIDIA(0): Assigned Display Device: DFP-0
> (II) NVIDIA(0): Validated modes:
> (II) NVIDIA(0): "1920x1080_60"
> (II) NVIDIA(0): "1280x720_60"
> (II) NVIDIA(0): "720x480_60"
> (II) NVIDIA(0): Virtual screen size determined to be 1920 x 1080
> (**) NVIDIA(0): DPI set to (100, 100); computed from "DPI" X config option
> How do I "have Myth use" these modes? I looked in the playback profiles
> but I don't see how to select modes. When the 1920x1080 mode is
> there it seems to only use that one.
if you have XRandR enabled then Myth should show you all the valid
resolutions as options to choose from.
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