My laptop runs Ubuntu 16.04 and has the following specs:
- SSD 256
- i5 7200u
- 8 gb RAM
- nvidia Nvidia GeForce GTX 950M
So ... it properly plays 30fps 4k video on YouTube, but it freezes when I try to play 60fps 4k video though there was no such an issue with it on Windows 10.
I tried different drivers ...
and even different browsers ...
but it still works properly only on Windows ...
but I don't want to go back to Windows!
After having a conversation with NVIDIA support - it was found out that upon YouTube 4k play - Ubuntu highly uses CPU like on this System monitor screenshot: