Few seconds Freeze in KDE Plasma since F30

[Frédéric]

Hi,
Since I moved to F30, I get some plasma freeze from time to time. It
freezes just for a few seconds (3-5 s) and only the mouse can still be
moved (clicking does not work).
Last time, I had a top open and there was nothing more than 5% (Xorg).
Any idea?
Thanks,
F

[Ed Greshko]

On 8/7/19 2:44 PM, Frédéric wrote:
> Since I moved to F30, I get some plasma freeze from time to time. It
> freezes just for a few seconds (3-5 s) and only the mouse can still be
> moved (clicking does not work).
> Last time, I had a top open and there was nothing more than 5% (Xorg).
> Any idea?

Is it one application where clicking doesn't work or all applications?

[Frédéric]

> Is it one application where clicking doesn't work or all applications?

All. It even did once with just the terminal open (terminator).

F

[Frédéric]

This morning, I have just 2 terminals open (does the same with
terminator and konsole).
Each time I type Alt+Tab to switch from one terminal to the other, it
freezes during 13-14 s before switching.
I ran top with 1 s delay refresh and I can see that top also freezes
in the source terminal. When I arrive in the target terminal, top
starts again and at the first update, kwin_x11 becomes first with 20%.
And then everything becomes normal again.
It does the same if the termnal are not full screen but next to each other.
F

[Frédéric]

I've just updated my F30 and a new kernel has come (5.2.5) with new
nvidia drivers (3:430.40). No update of kwin.
Still the same after update.
I would like to test with the nouveau driver but without uninstalling
nvidia. Can I do that?
F