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

[Nick Rout]

On Oct 4, 2012 3:03 PM, "Boleslaw Ciesielski" <bc-mythtv at comcast.net> wrote:
>
> On 10/03/2012 09:25 PM, Nick Rout 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.
>
>
> These numbers do not have any meaning. They are basically unique
identifiers for available modes.
>
> But you must be using an older driver. In newer drivers this has changed.
See http://www.gossamer-threads.com/lists/mythtv/users/529400#529400

Yes it was that thread that prompted me to look into it. I am using 195.36
on mythbuntu 10.04 and 295.20 on linhes 7.4.

>
> Bolek
>
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