[orlenok41]

Unfortunately, my TV (Sharp LC-42XD1E) cannot do 1080/24p natively and only supports 50hz or 60hz.

By default, my video card started X in 1920x1080@50Hz. After some reading in this forum about video judder when playing 24p on a display that does not support 24p input, I understood that the best 24p playback quality is achieved on 60Hz rather than 50Hz, using a 3:2 pulldown.

I have added the correct modelines to my xorg.conf for 50 and 60Hz, 60Hz being the default.
However, I have noticed that with the 'syncing the video to the refresh rate of the display' option on, XBMC changes the refresh rate to 50Hz when playing 24p content. Is this the correct behaviour? Shouldn't it rather leave it at 60Hz?

[JumJum]

Acctually, playing 24fps content at 25fps will give you smoother playback at 50Hz than any alternative at 60Hz.

You will lose the ability to use passthrough audio though, but you'll save 4,16% of the time it takes to watch the movie!

[bobo1on1]

Yeah it should, but it doesn't do that yet.