Bug 487679 - Blur effect broken
Summary: Blur effect broken
Status: RESOLVED DUPLICATE of bug 477017
Alias: None
Product: kwin
Classification: Plasma
Component: effects-various (show other bugs)
Version: unspecified
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: KWin default assignee
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2024-05-28 10:30 UTC by Kai Uwe Broulik
Modified: 2024-06-17 18:01 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed In:
Sentry Crash Report:


Attachments
Weird transparency during animation (30.34 KB, image/png)
2024-05-28 10:30 UTC, Kai Uwe Broulik
Details

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Description Kai Uwe Broulik 2024-05-28 10:30:30 UTC
Created attachment 169906 [details]
Weird transparency during animation

SUMMARY
For a few weeks the blur effect is broken for me, it just renders completely black, disregarding the window mask and flickering during sliding popups effect, where you can see some diagonal tiling of black during the animation.

STEPS TO REPRODUCE
1. Have blur contrast effect enabled
2. Open KRunner or Kickoff

OBSERVED RESULT
There’s black flickering during the animation and when it finished you can see that the corners around KRunner are black. Also affects other plasma popups

EXPECTED RESULT
No flickering, beautiful rendering ;)

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: git master as of 2024-05-25 on Intel UHD 620 GPU
Qt version: 6.7.0

ADDITIONAL INFORMATION
When I took a screenshot during the animation I could see that the resulting output was completely transparent, maybe there’s some blending issue there that it ends up “punching through” to the root plane which is black and then you see it through.

Whatever the case, it’s completely borked right now.
Comment 1 David Edmundson 2024-05-29 09:11:43 UTC
Can you run the manual test in KWindowSystem? It'll show whether it's an SVG problem or a blur / kwin problem.

Is konsole also problematic?
Comment 2 Bug Janitor Service 2024-06-13 03:47:12 UTC
Dear Bug Submitter,

This bug has been in NEEDSINFO status with no change for at least
15 days. Please provide the requested information as soon as
possible and set the bug status as REPORTED. Due to regular bug
tracker maintenance, if the bug is still in NEEDSINFO status with
no change in 30 days the bug will be closed as RESOLVED > WORKSFORME
due to lack of needed information.

For more information about our bug triaging procedures please read the
wiki located here:
https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging

If you have already provided the requested information, please
mark the bug as REPORTED so that the KDE team knows that the bug is
ready to be confirmed.

Thank you for helping us make KDE software even better for everyone!
Comment 3 Kai Uwe Broulik 2024-06-17 18:01:45 UTC
Looks like Bug 477017

if I disable "Color profile" (even though I did not have one set) the glitches went away

*** This bug has been marked as a duplicate of bug 477017 ***