Bug 481457

Summary:	Text is not rendered correctly
Product:	[Applications] khelpcenter	Reporter:	Iyán M. V. <me>
Component:	general	Assignee:	Documentation Editorial Team <kde-doc-english>
Status:	RESOLVED UPSTREAM
Severity:	minor	CC:	aylamz, bugseforuns, eekhofmartine, fanzhuyifan, mail, nicolas.fella, nilskemail+kde
Priority:	NOR	Keywords:	qt6
Version First Reported In:	6.0.240195
Target Milestone:	---
Platform:	Other
OS:	Linux
Latest Commit:		Version Fixed In:	Qt 6.8.0
Sentry Crash Report:
Attachments:	Help Center text without anti-aliasing screen shot that I think looks fine screenshot showing bad font kerning

Description Iyán M. V. 2024-02-17 11:32:29 UTC

SUMMARY
The text on the Help Center in Plasma 6 RC 2 looks bad. It feels like the anti-aliasing from Plasma is ignored just for this app.


STEPS TO REPRODUCE
1. Open the help center
2. Open any manual

OBSERVED RESULT
Text looks pixelated

EXPECTED RESULT
Text should use desktop settings and use anti-aliasing if it is enabled.

SOFTWARE/OS VERSIONS
Operating System: Arch Linux 
KDE Plasma Version: 5.93.0
KDE Frameworks Version: 5.249.0
Qt Version: 6.7.0
Kernel Version: 6.7.4-arch1-1 (64-bit)
Graphics Platform: Wayland
Processors: 8 × 11th Gen Intel® Core™ i5-1135G7 @ 2.40GHz
Memory: 15.3 GiB of RAM
Graphics Processor: Mesa Intel® Xe Graphics
Manufacturer: LENOVO
Product Name: 20XYCTO1WW
System Version: ThinkPad X1 Yoga Gen 6

Comment 1 Iyán M. V. 2024-02-17 11:36:01 UTC

Created attachment 165891 [details]
Help Center text without anti-aliasing

Comment 2 fanzhuyifan 2024-02-17 18:42:10 UTC

Created attachment 165910 [details]
screen shot that I think looks fine

Can't notice issues with the font on arch source build, wayland, with or without fractional scaling --- or maybe I just have bad eyesight and can't tell the difference

Comment 3 Patrick Silva 2024-02-18 00:03:49 UTC

Created attachment 165918 [details]
screenshot showing bad font kerning

I see bad font kerning when using display scale 125% and default Noto Sans font.

Operating System: Arch Linux 
KDE Plasma Version: 5.93.0
KDE Frameworks Version: 5.249.0
Qt Version: 6.7.0
Graphics Platform: Wayland

Comment 4 Iyán M. V. 2024-02-18 12:41:58 UTC

(In reply to fanzhuyifan from comment #2)
> Created attachment 165910 [details]
> screen shot that I think looks fine
> 
> Can't notice issues with the font on arch source build, wayland, with or
> without fractional scaling --- or maybe I just have bad eyesight and can't
> tell the difference

This looks bad to me as well :S

Comment 5 Patrick Silva 2024-03-06 11:35:21 UTC

*** Bug 482458 has been marked as a duplicate of this bug. ***

Comment 6 Nicolas Fella 2024-03-08 22:41:14 UTC

This is https://bugreports.qt.io/browse/QTBUG-113574

Comment 7 Iyán M. V. 2024-07-08 07:39:02 UTC

Fixed in QTBUG-113574

Comment 8 Robert Kratky 2024-08-16 08:22:34 UTC

*** Bug 490315 has been marked as a duplicate of this bug. ***