[Boulder]

1) My LG plasma TV supports 24p. Is it possible to force 24p output for movies with framerate of 23.976 or 24 frames per second? I have tried overriding the refreshrate settings via advancedsettings.xml but my receiver (and thus TV) doesn't get proper 24p signal. It used to work with my previous media player, the Mede8er MED500X2.

I believe you can, but unsure on the exact method. Which frame rate works and which doesn't with your receiver/TV?

My TV supports 24p, 50Hz and 60Hz modes at least according to what I've seen on its OSD when checking the refreshrate. So "standard" framerates would be 23.976, 24, 25, 50 and 59.94 fps.

Using advancedsettings.xml to put everything encoded at 23.976 fps to refreshrate 24 fps, the "debug" display shows 24 fps while playing the video but my TV stays in 60Hz mode.

2) Subtitle positioning doesn't work. I have set the position in the calibration dialog but still they appear at the bottom of the screen. I can move them by CTRL + +/- and it clearly shows that the position is not what I have chosen in the calibration.

pretty sure Kodi stores video calibration data on a per-refresh rate basis. So if you calibrate the subtitle position via the settings menu while the output is 60Hz, that's what the calibration is for. Try forcing the UI to 24Hz and then calibrating the position.

Thanks, I'll try that too. I had no idea that it would be that way..

3) MPEG-2 video decoding is not always hardware accelerated, which also means that I'm sometimes missing the advanced deinterlacing techniques such as VAAPI motion compensated deinterlacing. Are there some cases in which the decoding is done via software?

I believe mpeg2 is only hardware accelerated for HD video streams, something to do with dvd playback compatibility.

It could be that. I opened a DVD VOB file which was then hardware decoded. When playing a DVD folder, software decoding kicks in. I'll need to test this too.