Bug 390243

Summary:	Sidebarview resize redraw is slow on X11
Product:	[Applications] systemsettings	Reporter:	Ongun Kanat <ongun.kanat>
Component:	sidebarview	Assignee:	Marco Martin <notmart>
Status:	RESOLVED INTENTIONAL
Severity:	normal	CC:	bugseforuns, lesinars70, mojahedai7, nate, ongun.kanat
Priority:	NOR
Version First Reported In:	5.12.0
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:
Attachments:	Video demonstrating bug Bug catched on video (plasma 5.27)

Description Ongun Kanat 2018-02-11 00:14:36 UTC

Created attachment 110522 [details]
Video demonstrating bug

Resizing Systemsettings window in sidebarview is visually unpleasant due to slow redraw speed. There are glitches and a black bar stretching to the empty space until redraw completes. See attached video for a demonstration. Maybe this bug is related with bug 386190.

Comment 1 Marco Martin 2018-07-20 14:49:42 UTC

due to the combination of QQuickWidget and X11
on wayland is faster, the best scenario will be when whole systemsettings is ported to qml instead of container objects

Comment 2 David Edmundson 2021-04-14 11:09:25 UTC

*** Bug 432019 has been marked as a duplicate of this bug. ***

Comment 3 Nate Graham 2022-05-12 17:56:50 UTC

*** Bug 446391 has been marked as a duplicate of this bug. ***

Comment 4 Nate Graham 2023-01-06 23:51:35 UTC

This has gotten significantly better for me over the years. Feels fixed-ish for me. Is anyone able to reproduce the issue with Plasma 5.26 or later?

Comment 5 Bug Janitor Service 2023-01-21 05:05:59 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 6 Bug Janitor Service 2023-02-05 04:58:38 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!

Comment 7 Arseniy Lesin 2023-04-01 13:06:24 UTC

Created attachment 157766 [details]
Bug catched on video (plasma 5.27)

Bug is reproduced with Plasma 5.27 both X11 and Wayland (video catches X11, respective software versions also shown). 
The single difference between X11 and Wayland is that X11 bug features black bars while Wayland one features transparent.

Comment 8 Arseniy Lesin 2023-04-01 13:08:34 UTC

(In reply to Nate Graham from comment #4)
> This has gotten significantly better for me over the years. Feels fixed-ish
> for me. Is anyone able to reproduce the issue with Plasma 5.26 or later?

I apologize for such a long delay, i was struggling updating plasma on my gentoo installation.

Bug persists on Plasma 5.27, video attached

Comment 9 Nate Graham 2023-04-03 15:57:41 UTC

Yeah, it's only fixed on Wayland. On X11 it's basically unfixable due to the existing infrastructure. There unfortunately isn't any chance it will be improved on X11, sorry.