On 11/8/24 13:11, Felix Miata wrote:

Here is one example
https://www.youtube.com/watch?v=cueTzJAW1kU&t=196s
Played fine after first several seconds in Chromium in 15.5 KDE3 on i3-7100T
CPU/Intel HD Graphics 630 (KBL GT2).

Those videos also play fine on my ThinkPad, so the problem appears to be hardware sensitive.

BTW, I believe I'm on KDE 4 or whatever the default is on 15.6.