Bug 439955

Summary:	desktop effects zoom is rendering wrong with NVIDIA GPU
Product:	[Plasma] kwin	Reporter:	saunders
Component:	effects-various	Assignee:	KWin default assignee <kwin-bugs-null>
Status:	RESOLVED WORKSFORME
Severity:	normal	CC:	kde.podagric, nate, xaver.hugl
Priority:	NOR
Version First Reported In:	5.22.3
Target Milestone:	---
Platform:	Gentoo Packages
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	demonstration

Description saunders 2021-07-16 19:30:19 UTC

SUMMARY
using the zoom feature in desktop effects. when zooming in and moving along the border it will crop(?) it wrong.

STEPS TO REPRODUCE
1. Zoom on desktop.
2. Move around the edges of the screen.

OBSERVED RESULT
The screen will crop/wrap/not draw properly (hard to describe).

EXPECTED RESULT
Zoom.

SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 5.22.3
KDE Frameworks Version: 5.84.0
Qt Version: 5.15.2

ADDITIONAL INFORMATION
2560x1440 resolution, nvidia gtx 980.

Comment 1 Podagric 2021-07-17 13:44:24 UTC

does this bug happen to you with graphics other than nvidia? works fine for me with intel

Comment 2 saunders 2021-07-17 18:58:32 UTC

Created attachment 140146 [details]
demonstration

and no I have not tested this with an intel gpu.

Comment 3 Nate Graham 2021-08-03 16:46:03 UTC

Cannot reproduce with an Intel HD620 iGPU

Comment 4 Vlad Zahorodnii 2023-01-25 10:43:43 UTC

Works for me too. Reopen if the issue is still present in 5.26 or 5.27

Comment 5 saunders 2023-01-25 20:47:18 UTC

Same exact bug still exists. Card is now a 1080ti with no other changes.

Comment 6 Zamundaaa 2024-06-07 18:03:27 UTC

Can't reproduce in Plasma 6, not even with an NVidia GPU