[mythtv-users] What do those reported refresh rates mean?

[Jean-Yves Avenard]

On 4 October 2012 03:25, Nick Rout <nick.rout at gmail.com> wrote:
> I have an nVidia (ION2) graphics card and xrandr reports:
>
> $xrandr|grep 1920
> Screen 0: minimum 320 x 175, current 1920 x 1080, maximum 1920 x 1080
> default connected 1920x1080+0+0 0mm x 0mm
>    1920x1080      50.0*    51.0     52.0     53.0     54.0     55.0
>  56.0     57.0     58.0
>
> the judder free page on the wiki says:
>
> "With nvidia adapters however, nvidia has put a work around this
> limitation [ie that XRANDR only supports integers] by presenting a
> unique refresh rate per screen configuration. So it will show as the
> list of available rates: 50, 51, 52, 53 etc... when 50 is 50Hz, 51 is
> 59.97, 52 is 60Hz etc... "
>
> Is there a fixed correlation between the integers that xrandr reports
> and the actual refresh rates? I cannot find this documented anywhere.

You can retrieve the value for those refresh rates using
nvidia-settings --query=all

Otherwise, myth will not show those values but the real refresh rates,
you go into the appearance settings.