[mythtv-users] Vizio LCD native resolution problem over DVI->HDMI

[Phil Bridges]

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.
>
>  Richard

Have you tried using the EDID info from the display?  Put

Option          "UseEDID" "True"

in the screen section of your xorg.conf