I've lost hardware accelerated vp9 codec capability with recent driver update. Before Adrenalin it used to work just fine, 4k 60fps with mostly no dropped frames.
Chrome flags I've used for it:
No longer work for me after driver update.
Short search revealed that it was removed as a capability but I'd like to both have it back and know why it was removed, since it worked fine on my setup with a custom chromium startup flag.
Win 7 pro 64 bit, updated
Radeon RX 480 8GB (sapphire nitro+ one)