Bug 490906

Summary:	Cube effect freezes desktop with medium/large HDRIs/Skyboxes
Product:	[Plasma] kwin	Reporter:	Gunqqer Friithian <gunqqer>
Component:	effects-various	Assignee:	Plasma Bugs List <plasma-bugs-null>
Status:	RESOLVED DUPLICATE
Severity:	minor	CC:	kde, kdedev, nate, vlad.zahorodnii
Priority:	NOR
Version First Reported In:	6.1.3
Target Milestone:	---
Platform:	Neon
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Gunqqer Friithian 2024-07-27 22:40:01 UTC

SUMMARY
When using the cube desktop effect with a skybox that is larger, activating the effect can take 1 second to multiple seconds with a massive (16k) HDRi. 

STEPS TO REPRODUCE
1. Obtain an HDRi (I am using https://polyhaven.com/a/dikhololo_night , the 4k and 8k version show this off well, the 1k version is fast enough to not be noticable) and set it to be used by the cube effect
2. Launch cube effect

OBSERVED RESULT
All graphics freeze while loading the skybox

EXPECTED RESULT
The desktop should not freeze, even if it takes time for the file to get loaded

SOFTWARE/OS VERSIONS

Linux/KDE Plasma: Neon
(available in About System)
KDE Plasma Version: 6.1.3
KDE Frameworks Version: 6.4.0
Qt Version: 6.7.0

ADDITIONAL INFORMATION
The HDRi is on an SSD, with an r5 5900x and rx 6700xt so low hardware specs I don't think are the issue
In my opinion,  the 8k version of the skybox is the minimum to be good on my 1080p screen

Comment 1 Nate Graham 2024-07-30 20:40:55 UTC

Can reproduce the issue with that skybox image.

Comment 2 TraceyC 2025-03-17 20:44:25 UTC

Migrated to kwin
Resetting version

Comment 3 David Edmundson 2025-11-18 19:48:58 UTC


*** This bug has been marked as a duplicate of bug 505800 ***