This gave me the motivation to fix hardware acceleration with Chromium on my system. You need a browser able to do hardware-accelereted video decoding if you don’t want to hear the noise of a CPU fan alongside the voice of our fellow KDE people, or if you just don’t want to waste power. Unfortunately hardware-accelereted video decoding on Linux browsers is still a mess in 2020, to the best of my knowledge.
What I had to do to enable hardware-acceleration in Chromium on my ThinkPad T450s was:
- Switch back to Plasma on X11 :(
~/.config/chromium-flags.confwith the following flags:
You also need to make sure that your Chromium package has been compiled with VA-API support. And of course you need to have VA-API enabled on your system.
I haven’t tried with Firefox, but it should be possible to enable hardware-acceleration there as well (supposedly also on Wayland).