I've been trying to follow tutorials on enabling hardware accelerated video decoding for my Raspberry Pi 3b+, such as this one:
https://lemariva.com/blog/2020/08/raspberry-pi-4-video-acceleration-decode-chromium
They all seem to want me to select a GL Driver called "Fake KMS", but even after installing the various packages mentioned, it's not listed for me.
I'm using the latest version of Raspberry Pi OS, with updates installed.
cat /proc/device-tree/soc/firmwarekms@7e600000/status
returnsdisabled
cat /proc/device-tree/soc/v3d@7ec00000/status
returnsokay
chrome://gpu
showsVideo Decode: Software only: Hardware acceleration disbled
How can I make this option avaiable, or otherwise do what is needed to enable GPU video decoding in chromium?
dtoverlay=vc4-kms-v3d
in yourconfig.txt