Bug 479083 - Window thumbnails are upside down in Task Manager and Spectacle
Summary: Window thumbnails are upside down in Task Manager and Spectacle
Status: RESOLVED FIXED
Alias: None
Product: KPipeWire
Classification: Frameworks and Libraries
Component: general (show other bugs)
Version: unspecified
Platform: Fedora RPMs Linux
: NOR major
Target Milestone: ---
Assignee: Plasma Bugs List
URL:
Keywords:
: 479759 (view as bug list)
Depends on:
Blocks:
 
Reported: 2023-12-27 16:48 UTC by Fernando M. Muniz
Modified: 2024-01-29 20:24 UTC (History)
7 users (show)

See Also:
Latest Commit: https://invent.kde.org/plasma/kwin/-/commit/bb2391133d524fa72e317db6d91282159db0d74e
Version Fixed In: 6.0
Sentry Crash Report:

Attachments
This image shows the taskbar's "window preview" being displayed upside-down. (108.25 KB, image/jpeg)
2023-12-27 16:48 UTC, Fernando M. Muniz 		Details
View All Add an attachment

Note You need to log in before you can comment on or make changes to this bug.
Description Fernando M. Muniz 2023-12-27 16:48:53 UTC 
Created attachment 164480 [details]
This image shows the taskbar's "window preview" being displayed upside-down.

The issue is that the preview/peek window is mirrored upside-down.
Notice the Discover icon.
Comment 1 Ilya Bizyaev 2024-01-12 22:21:07 UTC 
Interestingly, the thumbnails are not upside down in the Alt+Tab window switcher.

Operating System: openSUSE Tumbleweed 20240111
KDE Plasma Version: 6.0.80
KDE Frameworks Version: 5.249.0
Qt Version: 6.6.1
Kernel Version: 6.6.10-1-default (64-bit)
Graphics Platform: Wayland
Graphics Processor: NVIDIA GeForce RTX 4070/PCIe/SSE2
Comment 2 Fernando M. Muniz 2024-01-12 23:06:53 UTC 
Perhaps a software rendering issue?

Operating System: Fedora Linux 40
KDE Plasma Version: 5.91.0
KDE Frameworks Version: 5.247.0
Qt Version: 6.6.1
Kernel Version: 6.7.0-0.rc8.20240104gitac865f00af29.64.fc40.x86_64 (64-bit)
Graphics Platform: Wayland
Processors: 5 × Intel® Core™ i5-L16G7 CPU @ 1.40GHz
Memory: 7.6 GiB of RAM
Graphics Processor: llvmpipe
Manufacturer: SAMSUNG ELECTRONICS CO., LTD.
Product Name: 767XCL
System Version: P07AJD
Comment 3 Ilya Bizyaev 2024-01-14 19:40:04 UTC 
I have the same problem when recording videos with Spectacle, so the problem is most likely in KPipeWire
Comment 4 Fernando M. Muniz 2024-01-15 08:15:02 UTC 
This issue persists on version 5.92.0

I've noticed that it's actually both mirrored and upside-down, instead of just one of them.
Comment 6 Nate Graham 2024-01-16 23:28:19 UTC 
*** Bug 479759 has been marked as a duplicate of this bug. ***
Comment 7 Ilya Bizyaev 2024-01-16 23:29:58 UTC 
No, that's my commit, it's for a different issue :) This one I don't know how to fix yet.
Comment 8 Nate Graham 2024-01-18 00:27:56 UTC 
Oops, sorry.
Comment 9 Ilya Bizyaev 2024-01-25 11:08:44 UTC 
This somehow got fixed with https://invent.kde.org/plasma/kwin/-/merge_requests/5037 for me. My guess is that NVIDIA supports `DRM_FORMAT_RGBA8888` while other GPUs don't, which is the format KWin was trying to set on the window captures whenever supported, but it was incorrectly flipped somewhere along the way.