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Hardware acceleration didn't work without IGPU on Polaris cards. Read WhateverGreen.kext FAQ for details. There is no solution.

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  • How do I use my IGPU?
    In most cases IGPU should be used for hardware video decoding (with a connector-less frame). In case you need extra screens, IGPU may be fully enabled. You should not use -radlogo boot argument with IntelGraphicsFixup.

  • How do I get hardware video decoding to work?
    Generally hardware video decoding is performed by an IGPU, and thus you are required to inject a connector-less frame. For some GPUs (e.g. HD 7870, HD 6670, HD 7970) it is still possible to get AMD hardware video decoding to work. Please refer to Shiki's FAQ for further details. You may need shikigva=1 on mac models that have forceOfflineRenderer on.

 

For now only RX Vega 56/64 with iMacPro1.1 macmodel can provide hardware acceleration without IGPU.

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