Jerky video playback

[Oliver Grawert]

hi,
Am Mittwoch, dem 14.06.2023 um 15:01 +0200 schrieb Volker Wysk:
> Hi!
> 
> I have a problem with my machine. When I play a video, it often
> occurs that
> the playback is jerky. It's hard to reproduce. When I stop it for a
> few
> seconds, it runs smoothly for a while. The same happens when I "cat"
> it to
> /dev/null.
> 
> I'm using SMPlayer most of the time. When I tried VLC with a jerky
> video
> lately, the video track became smooth. But the audio track became
> jerky
> instead.
> 
> I have a standard PC, which is about three years old. It has 16 GB of
> memory
> and an "AMD Ryzen 7 2700X Eight-Core Processor" CPU. The videos are
> on an
> internal hard disk drive (the spinning kind). The main system is on
> an SSD.
> 
which ubuntu release is this and what kernel/HWE stack do you have
installed on it ... 

especially for AMD it makes sense to always have the latest HWE stack
for kernel/graphics drivers and particuary for your problem VAAPI libs
installed.

the video player might simply not use HW deoding with the VAAPI
packages you have installed and fall back to CPU based decoding.

ciao
	oli
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