https://bugs.kde.org/show_bug.cgi?id=407917
Martin Flöser changed:
What|Removed |Added
Component|platform-wayland|compositing
Flags|
https://bugs.kde.org/show_bug.cgi?id=407917
--- Comment #12 from zvova7...@gmail.com ---
I had installed gnome, run under wayland, and create 50 windows od gedit(and
then gnome-terminal) - performance is ok. Then i make 50 windows of
ksysguard(uses wayland mode) - faced slow rendering, with
https://bugs.kde.org/show_bug.cgi?id=407917
--- Comment #11 from Christoph Feck ---
> any gtk application is argb due to csd
I am pretty sure GTK informs wayland about the opaque region _inside_ the
window. Otherwise a stack of windows always needs to be composited completely
from back to
https://bugs.kde.org/show_bug.cgi?id=407917
--- Comment #10 from Martin Flöser ---
(In reply to Christoph Feck from comment #9)
> If Qt doesn't inform Wayland of opaque surfaces, that sure would be worth a
> bug report.
Yes and no. I would say it was a bug on X11 that argb was not supported out
https://bugs.kde.org/show_bug.cgi?id=407917
--- Comment #9 from Christoph Feck ---
If Qt doesn't inform Wayland of opaque surfaces, that sure would be worth a bug
report.
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https://bugs.kde.org/show_bug.cgi?id=407917
--- Comment #8 from Martin Flöser ---
Iirc Qt on Wayland uses an alpha channel by default, so we are always in the
"Konsole" Case.
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https://bugs.kde.org/show_bug.cgi?id=407917
--- Comment #7 from zvova7...@gmail.com ---
Looks like. ksysguard in many instances work fine with shadows(normal size in
shadow settings) in x11, in wayland much slower. So there is 2 problems:
1. konsole in anywhere slow with many instances because
https://bugs.kde.org/show_bug.cgi?id=407917
--- Comment #6 from Martin Flöser ---
Shadows are translucent and Konsole is translucent. That sounds a lot like an
issue in our translucent windows rendering path.
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--- Comment #5 from zvova7...@gmail.com ---
Another interest thing - if open ksysguard in 100+ instances, all fine. But
with konsole slideshow O_o. This is on x11, on wayland stable performance
problem with any windows. I tried to switch to wayland by
https://bugs.kde.org/show_bug.cgi?id=407917
--- Comment #4 from zvova7...@gmail.com ---
It is default kde theme, transparent and blured only plasma(taskbar what
visible). Window is not transparent, only when moved. But I had disabled
transparency and blur in effect settings - and window run more
https://bugs.kde.org/show_bug.cgi?id=407917
--- Comment #3 from Martin Flöser ---
Maybe it's a problem with translucent windows? Especially if window background
is blurred a performance degrading is to be expected with more open windows.
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--- Comment #2 from zvova7...@gmail.com ---
Interest thing. I had received updates for my archlinux, with released
kwin(5.16) and Qt 5.13(before I'm used beta releases), and have tested this
again.
In x11 if open 50 konsole instances - performance
https://bugs.kde.org/show_bug.cgi?id=407917
tro...@free.fr changed:
What|Removed |Added
CC||tro...@free.fr
--- Comment #1 from
https://bugs.kde.org/show_bug.cgi?id=407917
Nate Graham changed:
What|Removed |Added
CC||n...@kde.org
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