Machine: Lenovo Thinkpad X13 Gen 3 AMD
APU: AMD Ryzen 5 PRO 6650U with Radeon Graphics
Version: Fedora Workstation 42
First time installing Linux on this machine. Firefox seems to be lacking VP8_HW_DECODE for some reason. It’s being blocklisted and giving the failure code FEATURE_FAILURE_VIDEO_DECODING_MISSING. I followed the wiki article for H264/5 HW decoding hoping it would help but VP8 still seems to not work. It works fine on Windows so I’m assuming it’s not a hardware issue. Not sure where to go from here.
It is something related to your configuration because VP8 is one of the three formats that are supported on mine.
The bad thing for me is VP8 is not used anywhere.
Youtube streams VP9 and AV1, you can force H264 but the quality is bad.
After a few days of fumbling around, I’m thinking this is some kind of bug in libva regarding this particular APU. I tried installing Ubuntu and still had the same issue. I even tried Gentoo and made sure to compile natively with the hwaccel use flag. Same issue so definitely not exclusive to Fedora. It’s likely not a problem with the amdgpu kernel modules or mesa either as VP8 decode appears to work fine under libvdpau.