[CastagnaIT]

I bought almost a new pc to try to eliminate the problem,
this time have a cpu AMD dualcore (instead of intel) with a new AMD R7 250 DirectX 12 compatible and wddm 2.3 ready, Fresh install Win10x64.

Now with "latest" nightly Kodi 18 dated "20171203",
similar problems arise with "Adjust display refresh rate" on start/stop:

now the video frequency is changed correctly no black screen, but,
the video starts with blows and then stabilizes after a few seconds,
after about a minute or so the video starts jamming and gets worse and worse.
If you use fast forwarding, buffering crazy always,
the buffer does not fill up remains zero, after a few minutes it resumes but does not work properly...

if i disable "Adjust display refresh rate" everything work as expected.

I want to mention this is not a problem only old video cards but ALSO NEW ONES!