[mythtv-users] Vizio LCD native resolution problem over DVI->HDMI
gravityhammer at gmail.com
Mon May 12 20:16:09 UTC 2008
On Mon, May 12, 2008 at 3:18 PM, Richard Shaw <hobbes1069 at gmail.com> wrote:
> On Mon, May 12, 2008 at 1:48 PM, Joe Votour <vulturej at vulturesnest.net> wrote:
> > Quoting Richard Shaw <hobbes1069 at gmail.com>:
> > > I'm currently using a VGA cable from a KVM to get 1360x768 at 60. The
> > > native resolution is 1366x768 but apparently Nvidia card need the
> > > resolution to be divisible by 8. I'm trying to get the DVI->HDMI cable
> > > working but I've run into a couple of issues.
> > >
> > > I can get X/Nvidia to validate a mode for "1360x760_60" but the TV
> > > says there is no signal. If I change it to "1280x720_60" then it works
> > > fine. It seems strange that the driver thinks it's fine but the TV
> > > will not display a resolution that works fine over VGA. The only
> > > ValidationMode option I'm using is the "NoNativeWidthCheck" or
> > > something like that.
> > >
> > > I'd really like to take the crappy VGA cable out of the equation. Any Ideas?
> > >
> > > Thanks,
> > > Richard
> > Odds are your Vizio (like mine) will allow you to do full 1080p
> > (1920x1080) over the HDMI port. I would not even bother with the
> > 1360x760 resolution (and in fact, it may not even be supported).
> > -- Joe
> Hm... It was not advertised as a 1080p TV. The manual does state that
> the native resolution is 1366x768 and even has dot clock rates,
> horizontal and vertical scan rates, etc in the manual. It just seems
> strange that it works (@1360x768) over VGA but not HDMI.
Have you tried using the EDID info from the display? Put
Option "UseEDID" "True"
in the screen section of your xorg.conf
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