D'ailleurs en relisant ce wiki y'a des options pour forcer l'autoframe rate... si des motivés veulent tester
<!-- Settings for when "Adjust refreshrate to match video fps" is enabled, available since r33806. -->
<!-- NOT available in the Dharma release or any release before that -->
<adjustrefreshrate>
<!-- "Adjust refreshrate to match video fps" will try to select the best refreshrate for the video fps -->
<!-- but it doesn't always get it right, for example it might switch to an unsupported refreshrate. -->
<!-- You can add overrides here to switch to a certain refreshrate based on video fps -->
<!-- It's possible to add as many overrides as you need. -->
<!-- Overrides are processed in order, if the first one doesn't match the fps or no refreshrates match -->
<!-- that override, it will try the next one until no overrides are left -->
<override>
<fps>23.976</fps> <!-- if the fps is between 23.966 and 23.986 -->
<refresh>60.0</refresh> <!-- switch to the first found refreshrate that is between 59.99 and 60.01 -->
</override>
<override>
<fpsmin>29.96</fpsmin> <!-- You can also specify the fps range yourself -->
<fpsmax>30.01</fpsmax>
<refreshmin>59.0</refreshmin> <!-- Same for the refreshrate -->
<refreshmax>61.0</refreshmax>
</override>
<!-- It none of the overrides match, or none of the refreshrates match any of the fps matching overrides, -->
<!-- it will choose a fallback refreshrate. Fallbacks are process in order, if the first fallback doesn't match -->
<!-- any refreshrate, it will try the next one until no fallbacks are left -->
<fallback>
<refresh>50.0</refresh> <!-- switch to the first found refreshrate that is between 49.99 and 50.01. -->
</fallback>
<!-- You can also specify the range for the fallback yourself -->
<fallback>
<refreshmin>49.0</refreshmin>
<refreshmax>51.0</refreshmax>
</fallback>
<!-- If none of the overrides match the video fps, or no refreshrates match any of the fps matching overrides, -->
<!-- and no fallbacks are specified or no refreshrates match any fallbacks, -->
<!-- it will automatically choose the best refreshrate (same as having no overrides and fallbacks). -->
</adjustrefreshrate>