Become a MacRumors Supporter for $50/year with no ads, ability to filter front page stories, and private forums.

nigel415674

macrumors member
Original poster
Oct 22, 2015
38
18
Seattle
I recently upgraded my 2020 iMac and it no longer allows me to encode to HEVC using Hardware Acceleration (Video Toolbox). I've tried this using ffWorks and a program called VideoProc. I've been using this functionality for 18 months now, and after upgrading the Monterey, it stopped working. Is anyone else having this problem?

I tried downgrading to Big Sur, but the Big Sur installer will not allow me to downgrade so I am looking at other options right now.

My machine specs are:
2020 iMac
3.6 GHz 10-Core Intel Core i9
Cores: 10
Memory: 64 GB
T2 chip
AMD Radeon Pro 5500 XT



noHEVC.png
 
I have the same issue with my MacPro7,1 with Radeon Pro Vega II gpu. Any ideas how to fix this?
 
Your iMac has got two HEVC hardware encoders (one in the T2, one in the CPU and one in the GPU), it's weird.
Does it work in QuickTime or HandBrake?
 
Register on MacRumors! This sidebar will go away, and you'll see fewer ads.