How to Fix Missing H265 Hardware Acceleration in Big Sur
This mini-guide provides a structural approach to troubleshoot and fix the issue.
Prerequisites
- Confirm your hardware specifications (CPU, GPU, Motherboard).
- Ensure you have a bootable recovery USB and backup your EFI.
Fix Steps
- Check if your GPU requires WhateverGreen or specific boot-args (e.g., agdpmod=pikera).
- Ensure Metal acceleration is fully supported for your macOS version.
- Update Lilu and WhateverGreen to the latest versions.
Verification
- Reboot and verify if the functionality is restored and stable under typical usage.
Original Question:
Hi all,
I'm trying to fix an issue with H265 Hardware Acceleration in Big Sur with one of my builds:
- ASUS Prime H310I-PLUS R2.0
- Intel Core i3 8100
- iGPU Intel UHD 630
- SSD NVME 1TB
- 16GB DDR4
The exact same configuration boot in Catalina with a perfectly working H265 Hardware Acceleration, while in Big Sur such doesn't work.
H264 Hardware Acceleration works fine both in Catalina and Big Sur.
Can anyone help unlock it?
I add to this thread my DSDT dump, OpenCore Configuration, IOReg...
Read more
I'm trying to fix an issue with H265 Hardware Acceleration in Big Sur with one of my builds:
- ASUS Prime H310I-PLUS R2.0
- Intel Core i3 8100
- iGPU Intel UHD 630
- SSD NVME 1TB
- 16GB DDR4
The exact same configuration boot in Catalina with a perfectly working H265 Hardware Acceleration, while in Big Sur such doesn't work.
H264 Hardware Acceleration works fine both in Catalina and Big Sur.
Can anyone help unlock it?
I add to this thread my DSDT dump, OpenCore Configuration, IOReg...
Read more
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