[KOSKERS]

I have installed the newest version xbmc by PPA.
I have 2 4K videos.
A video can be played by xbmc 13.But not smoothly.
Another video can not be played.I just heard the sound.

Theses are the videos' specification.
plz see the below..

CODE:H264-MPEG-4 AVC
3840X2160

CODE:H264-MPEG-4 AVC
3840X2160 hi10p


BTW:
I7-4700MQ Haswell HD4600(In use)
8Gb
GTX765M(disable by bumblebee)

How can i enable the GTX765M in xbmc?
when i enable the GTX765M, xbmc said that VDAPU.so not found.


plz help me