https://bugs.kde.org/show_bug.cgi?id=382817
--- Comment #16 from Tsu Jan ---
For the sake of thoroughness, I should add that it wasn't a driver issue but
really a kwin problem, which is fixed in V5.13 somehow (the new blur effect may
have a role in that).
My reason is that no driver was upgraded
https://bugs.kde.org/show_bug.cgi?id=382817
--- Comment #15 from Tsu Jan ---
> Marking as upstream as it looks quite a lot like a driver issue.
Most probably.
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https://bugs.kde.org/show_bug.cgi?id=382817
Martin Flöser changed:
What|Removed |Added
Resolution|--- |UPSTREAM
Status|UNCONFIRMED
https://bugs.kde.org/show_bug.cgi?id=382817
--- Comment #13 from Tsu Jan ---
Sorry, I meant DRI2 -- copy/paste typo.
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https://bugs.kde.org/show_bug.cgi?id=382817
--- Comment #12 from Tsu Jan ---
Switching to DDR2 (with modesetting) and choosing "OpenGl 2.0" as well as "Full
screen repaints" in System Settings had a considerable positive effect. DDR3
seems to have bugs, whether with modesetting or with the Intel
https://bugs.kde.org/show_bug.cgi?id=382817
--- Comment #11 from Tsu Jan ---
> What about switching to breeze window decoration?
I sometimes use breeze but there's no difference in this regard.
I tested with an older Intel-based Asus laptop and saw that the problem was so
mild that it was almos
https://bugs.kde.org/show_bug.cgi?id=382817
--- Comment #10 from Martin Flöser ---
What about switching to breeze window decoration?
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https://bugs.kde.org/show_bug.cgi?id=382817
--- Comment #9 from Tsu Jan ---
I tried the Intel Xorg driver again -- its bugs are fixed now -- but it had no
effect on this problem.
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--- Comment #8 from Tsu Jan ---
Oh, I forgot to tell you about something that may contain a clue:
KWin effects (animation) may interfere with non-kwin ones too. For example, I
also use KWin under LXQt. LXQt's hiding panel has an animation and sometimes
https://bugs.kde.org/show_bug.cgi?id=382817
--- Comment #7 from Tsu Jan ---
> You could try switching to OpenGL 3
I had tried that before but got error messages in
`~/.local/share/sddm/xorg-session.log` (I don't remember them).
However, I tried it again a few minutes ago and saw no error messag
https://bugs.kde.org/show_bug.cgi?id=382817
--- Comment #6 from Martin Flöser ---
You could try switching to OpenGL 3
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--- Comment #5 from Tsu Jan ---
It's modesetting ("xf86-video-intel" was VERY buggy here and its use is
discouraged correctly, IMO). As for dri3, `LIBGL_DEBUG=verbose glxinfo | grep
libgl` gives:
...
libGL: pci id for fd 4: 8086:191b, driver i965
libGL
https://bugs.kde.org/show_bug.cgi?id=382817
--- Comment #4 from Martin Flöser ---
Are you using dri2 or dri3? Are you using the Intel xorg driver or modesettings
driver?
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--- Comment #3 from Tsu Jan ---
Another descriptive info, if it helps:
With kwin effects enabled, starting Dolphin (and some other apps that may have
a delay on starting -- although I think Dolphin's start delay is a bug)
sometimes creates an empty rec
https://bugs.kde.org/show_bug.cgi?id=382817
--- Comment #2 from Tsu Jan ---
KWin Support Information:
The following information should be used when requesting support on e.g.
http://forum.kde.org.
It provides information about the currently running instance, which options are
used,
what OpenGL dr
https://bugs.kde.org/show_bug.cgi?id=382817
--- Comment #1 from Martin Flöser ---
please provide output of:
qdbus org.kde.KWin /KWin supportInformation
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