https://bugs.kde.org/show_bug.cgi?id=414785

--- Comment #33 from Carlo Meijer <ca...@youcontent.nl> ---
(In reply to Michael Hamilton from comment #32)
> (In reply to Carlo Meijer from comment #29)
> > I managed to work around the problem by means of the solution proposed here,
> > number 2 (Disabling KWIN Vsync and force full composition pipeline):
> > https://www.reddit.com/r/EndeavourOS/comments/p8b2kf/
> > for_those_that_have_stutterlags_problems_with_kde/
> > I already reported it in the relevant nvidia forums topic, but I'm also
> > posting it here since disabling vsync in KWin and forcing it to be offloaded
> > to the nvidia driver seems to fix the issue. Perhaps there's something
> > unforeseen going on in KWin and something can be done in KWin to
> > fix/workaround the issue (perhaps some nvidia-specific hacks).
> > 
> > I found that latte-dock still stutters, disabling tooltips solved that one
> > for me. I was hoping this magically solved it as well, but apparently not.
> 
> I tried the described work around. it doesn't appear to fix the stutter
> described in bug 443696 (a duplicate of this one), the test being: 
> 
>      for i in 1 2 3 4 5 6 7 8 9 10; do notify-send --expire-time 20000 test
> $i; done
> 
> Perhaps bug 443696 is not actually the same as this one.

It seems that, indeed, there are two distinct issues:
1) is the one described by TS; as long as the notification is open, everything
stutters. I had this issue as well, and solved it by offloading vsync to the
nvidia driver, as referenced in my previous post.
2) is described in 443696 and 436902; stutters and cpu spikes appear only
during the appearance and disappearance of a notification.

Now that I pay attention to it, it seems that my system is also affected by
(2). However, in my humble opinion, it's is much less severe than (1). I can
live with it until wayland is ready for daily use. Hopefully that will
magically make the issue go away.

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