Hi!
I bought Pi 4 to watch dvb-t2 and youtube/websites videos.
While it's ok to watch them in a small window (smooth), by resizing them to fullscreen (1920x1080) they are quite slow. It's visible how moving by lips is delayed after sound and it's very distracting. It's like the video would be 10 fps or like so. Sometimes I can see how a frame is drawn from top to bottom.
I'm quite disappointed since everywhere they wrote it has 4k hevc support, but in reality it's not possible to play even FullHD Youtube video smoothly.
Well it might be a sw issue or wrong configuration, therefore I'm asking if you don't have an idea what I can tweak to obtain the smooth FullHD video. For the time being I changed memory split - assigned 256 MB memory to gpu.
I'm running:
Raspbian Buster with desktop
Version: June 2019
Release date: 2019-06-20
Kernel version: 4.19
on Rpi 4 4GB RAM.
I use preinstalled Chromium to watch Youtube and web videos and installed Kaffeine to watch dvb-t2 channels.