ok guys , thank u very much !!!
I dont read the other post sry !
So , I selected in the whitelist all the res/Refresh rate available (2160p all refresh rate : 60--->23.976 and 1080p also)
it seems to be ok but :
-when I m playing uhd movie , no problem , refresh rate ok , resolution UHD ok on tv.
-when I try to play full hd movie file : refresh rate ok BUT resolution of my TV change to 1080p.
With previous version of kodi (17.6) , all my full HD file was readen without the change of resolution , my TV stayed in 2160p.
why this behaviour now ?
edit : ok I read the other read thread and the explanation :
https://forum.kodi.tv/showthread.php?tid=331840&page=4
But I think there s a big problem now :
also I ve some very old file (only in 720p or less !!!) and unfortunately , I cant see this resolution in white list so no switching framerate.
I had absolutely no problem during many years with kodi and autoframerate worked perfectly without whitelist.
I understand it s good now because upscale can be made by the TV , but if no white list enabled , many files (especially old files with small resolution 720p or less) can't be read smoothly cos no resolution/refresh rate appear in white list