Bug 437744 - Window previews for XWayland windows are colour-shifted
Summary: Window previews for XWayland windows are colour-shifted
Status: RESOLVED WORKSFORME
Alias: None
Product: plasmashell
Classification: Plasma
Component: Task Manager and Icons-Only Task Manager (show other bugs)
Version: 5.21.5
Platform: Fedora RPMs Linux
: NOR normal
Target Milestone: 1.0
Assignee: Eike Hein
URL:
Keywords: wayland
Depends on:
Blocks:
 
Reported: 2021-05-27 17:32 UTC by Alex
Modified: 2022-06-14 04:35 UTC (History)
5 users (show)

See Also:
Latest Commit:
Version Fixed In:


Attachments
Screenshot of Discord window preview (55.02 KB, image/png)
2021-05-27 17:32 UTC, Alex
Details

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Description Alex 2021-05-27 17:32:45 UTC
Created attachment 138828 [details]
Screenshot of Discord window preview

This only seems to affect XWayland windows, not Wayland native windows.

See the attached image. I have a blue theme on my Discord, but the preview appears orange.

I'm pretty sure this exists on 5.22, but I'm currently on 5.21.5.
Comment 1 Alex 2021-06-09 11:10:12 UTC
I don't think the colours are fully inverted, because I have a dark blue theme on my Discord, and it appears as dark orange in the thumbnail. If the colours are truly inverted, I would expect the thumbnail to have a light background. I described the effect as "rotated" because it looks like a hue shift to me, aka a rotation around the hue wheel.
Comment 2 Alexander Ewering 2021-06-09 16:01:55 UTC
Probably wrong channel order (RGB vs BGR)? (I'm not a KDE dev but I wanted to look important anyway! ;))
Comment 3 Alex 2021-08-09 13:30:48 UTC
As of 5.22.4 I can't reproduce this issue anymore. Can anyone else?
Comment 4 Bug Janitor Service 2021-08-24 04:36:42 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 5 Alex 2021-08-29 06:06:09 UTC
I will mark this as fixed then, because I don't encounter the bug anymore and no one else said that they still encounter this bug.
Comment 6 Alex 2021-10-07 11:48:24 UTC
I am encountering this bug again on 5.22.90.
Comment 7 Alex 2021-10-07 11:50:33 UTC
Specifically, out of the windows I have open, the previews for Kdenlive, FL Studio, and Discord are colour-shifted with what appears to be a hue rotation effect, as previously described.
Comment 8 Alex 2022-05-15 09:04:48 UTC
On Plasma 5.24.5, I cannot reproduce this anymore. Moving to NEEDSINFO in case anyone else still encounters this.
Comment 9 Bug Janitor Service 2022-05-30 04:35:44 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 10 Bug Janitor Service 2022-06-14 04:35:27 UTC
This bug has been in NEEDSINFO status with no change for at least
30 days. The bug is now 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

Thank you for helping us make KDE software even better for everyone!