ForceCompatibleRenderer = 4,
https://github.com/acidanthera/WhateverGreen/blob/master/WhateverGreen/kern_shiki.hpp
sudo nvram boot-args="shikigva=60 shiki-id=Mac-7BA5B2D9E42DDD94"
Accrodig to kern_shiki.hpp, shikigva=32 is for replacing board-id. So I would suggest you using the command below.I can't find the documents that explain those shikigva options.
Code:
sudo nvram boot-args="shikigva=32 shiki-id=Mac-7BA5B2D9E42DDD94"
For detailed information, please check// Aside generic DRM unlock patches, which are always on, Shiki also provides a set of patches
// to workaround various issues with hardware video acceleration support.
// These are set as a shikigva boot-arg bitmask.
// For example, to enable ForceOnlineRenderer, ExecutableWhitelist, and ReplaceBoardID
// you sum 1 + 8 + 32 = 41 -> and pass shikigva=41.
ForceOnlineRenderer = 1,
AllowNonBGRA = 2,
ForceCompatibleRenderer = 4,
AddExecutableWhitelist = 8,
DisabledUnused16 = 16,
ReplaceBoardID = 32,
UnlockFP10Streaming = 64,
DeprecatedUnused128 = 128
https://github.com/acidanthera/WhateverGreen/blob/master/WhateverGreen/kern_shiki.hpp