[kwin] [Bug 398438] Desktop cube corruption on misaligned multiple monitors

2018-09-10 Thread Vlad Zagorodniy
https://bugs.kde.org/show_bug.cgi?id=398438

Vlad Zagorodniy  changed:

   What|Removed |Added

 Resolution|--- |DUPLICATE
 Status|UNCONFIRMED |RESOLVED

--- Comment #6 from Vlad Zagorodniy  ---
Thank you for the info.

*** This bug has been marked as a duplicate of bug 362360 ***

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[kwin] [Bug 398438] Desktop cube corruption on misaligned multiple monitors

2018-09-10 Thread Mayeul Cantan
https://bugs.kde.org/show_bug.cgi?id=398438

--- Comment #5 from Mayeul Cantan  ---
(In reply to Vlad Zagorodniy from comment #4)
> (In reply to Mayeul Cantan from comment #3)
> > (b) The problem seems fixed now without background contrast.
> You mean the blur effect, right?

No. I was able to reproduce this bug with with the blur effect disabled. Then I
am pretty sure I re-enabled it.

I have not been able to reproduce it after disabling the background contrast
effect, either with or without the blur effect.

As a matter of fact, I have not been able to reproduce this bug ever since I
switched the background contrast effect off, then on again.

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[kwin] [Bug 398438] Desktop cube corruption on misaligned multiple monitors

2018-09-10 Thread Vlad Zagorodniy
https://bugs.kde.org/show_bug.cgi?id=398438

--- Comment #4 from Vlad Zagorodniy  ---
(In reply to Mayeul Cantan from comment #3)
> (b) The problem seems fixed now without background contrast.
You mean the blur effect, right?

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[kwin] [Bug 398438] Desktop cube corruption on misaligned multiple monitors

2018-09-10 Thread Mayeul Cantan
https://bugs.kde.org/show_bug.cgi?id=398438

--- Comment #3 from Mayeul Cantan  ---
> (a) can you reproduce this issue when all screens are aligned in a straight 
> line?
> (b) can you reproduce this bug if you disable the blur effect (and the 
> background contrast effect)?

Short version:
(a) Yes.
(b) Yes with blur, no with background contrast.

Longer version:

(a) It seems to happen only if the two following conditions are met:
* The two screens on the left share the same Y-coordinates
* The screen on the right is lower than this.

It doesn't happen if either:
* One screen is disabled
* The screen on the right is above
* The two left screens are misaligned

(b) The problem seems fixed now without background contrast. Furthermore, it
didn't reappear after re-enabling it.
Both blur and background contrast were originally only partially checked. I
have no idea what this means. They are both fully checked now, and it seems to
be working. This survived across a session connect-and disconnect.

That means I can't reproduce the bug anymore for now. I'll write back if it
happens again.
Thanks for your help :)

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[kwin] [Bug 398438] Desktop cube corruption on misaligned multiple monitors

2018-09-09 Thread Vlad Zagorodniy
https://bugs.kde.org/show_bug.cgi?id=398438

--- Comment #2 from Vlad Zagorodniy  ---
(a) can you reproduce this issue when all screens are aligned in a straight
line?
(b) can you reproduce this bug if you disable the blur effect (and the
background contrast effect)?

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[kwin] [Bug 398438] Desktop cube corruption on misaligned multiple monitors

2018-09-09 Thread Mayeul Cantan
https://bugs.kde.org/show_bug.cgi?id=398438

--- Comment #1 from Mayeul Cantan  ---
Created attachment 114867
  --> https://bugs.kde.org/attachment.cgi?id=114867&action=edit
Screenshot of the problem

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