[mythtv-users] mythtv and judder free playback

[John Drescher]

On Mon, Oct 25, 2010 at 12:29 PM, Phil Wild <philwild at gmail.com> wrote:
> Hello,
>
> I am trying to implement judder free playback as per the JYA
> instructions within the wiki.
>
> Everything appears to work fine except for one frequency which my TV
> does not support.
>
> I have a Samsung 50" plasma model 50A650
>
> If I run xrtandr I see the following:
>
> 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     59.0     60.0     61.0     62.0     63.0
>  64.0     65.0     66.0     67.0     68.0     69.0
>   1680x1050      70.0     71.0
> {more deleted]
>
> And if I work through the frequencies, all work fine except for 63
> using xrandr -r 63
>
> When I run this command, my X log file displays the following
>
>  NVIDIA(0): Setting mode "1920x1080_60_3"
>
> Perhaps I am missing something but I can't seem to figure out what I
> have to modify to stop mythtv selecting this frequency.
>

I believe the part of problem is nvidia drivers do not (by default)
report the correct frequency in xrandr.

For me I believe 50 Hz is reported and that really means 85 Hz on my
CRT monitor.

John