A big thanks to everyone who has worked on this thread and the fix for this problem, I want to make a small post with system specs and what I used to get my iTunes finally to play HD movies.
Basic Specification:
Clover Bootloader version 4061 SMBIOS iMac14,2 - [ Inject NVidia ] selected only
Mac OS Sierra 10.12.5 (16F73)
Nvidia Web Driver: 378.05.05.15f01
Integrated Graphics Processor IGPU disabled within BIOS
MSI GeForce GTX 750 Ti Gaming - Using DVI output to DVI input on Dell U2412M
GA-Z87X-UD4H (BIOS 10b)
en0: Card Type: AirPort Extreme - TP-LINK TL-WDN4800 N900 Wi-Fi PCI-E card
Ethernet onboard disabled from within BIOS
AppleIntelHD3000GraphicsVADriver.bundle moved to trash (just following the herd with this one)
iTunes version 12.6.1.25
Following
DerDing's OP instructions: on post
#1
Mounted EFI and placed - [ Shiki.2.0.3 - Lilu.1.1.6 ] & [ iMac.kext see below for link to post ] all attached below into EFI/Clover/kexts/10.12 folder
ran terminal commands:
Code:
defaults write com.apple.AppleGVA forceNV -boolean yes
defaults delete com.apple.coremedia
defaults delete com.apple.AppleGVA
sudo rm -rf /Users/Shared/SC\ Info
sudo defaults delete com.apple.coremedia
sudo defaults delete com.apple.AppleGVA
Ignoring the no such file errors for both com.apple.coremedia & com.apple.AppleGVA (I would jump off any cliff if told to
)
Rebooted PC and tested SD and HD movies within iTunes (they do play but only after downloading to computer, no streaming) so pleased to now enjoy movies without dual booting to Win10 first.
sightlysuperior posted the attachment of iMac.kext many thanks, this was the final fix and saved me having to use my brain and edit the plist.
https://www.tonymacx86.com/threads/...een-solution-hdcp.195083/page-23#post-1385798