Bug 482329 - On X11, Force Font DPI setting now affects more than just the font size
Summary: On X11, Force Font DPI setting now affects more than just the font size
Status: RESOLVED INTENTIONAL
Alias: None
Product: systemsettings
Classification: Applications
Component: kcm_fonts (show other bugs)
Version: 6.0.0
Platform: Other Linux
: NOR normal
Target Milestone: ---
Assignee: Plasma Bugs List
URL:
Keywords: qt6
Depends on:
Blocks:
 
Reported: 2024-03-03 17:54 UTC by popov895
Modified: 2025-01-13 12:21 UTC (History)
7 users (show)

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Description popov895 2024-03-03 17:54:46 UTC 
SUMMARY

In Plasma 5, the Force Font DPI option only affects the font size (which is expected and consistent with its name). In Plasma 6, this option affects the entire UI and has the same effect as Global Scale on the Display Configuration page. It would be wise to bring back its behavior as in Plasma 5.

SOFTWARE/OS VERSIONS

Operating System: KDE neon 6.0
KDE Plasma Version: 6.0.0
KDE Frameworks Version: 6.0.0
KDE Gear Version: 24.02.0
Qt Version: 6.6.2
Kernel Version: 6.5.0-21-generic (64-bit)
Graphics Platform: X11
Graphics Processor: Mesa Intel® UHD Graphics 620
Comment 1 Doug 2024-03-04 06:06:09 UTC 
Can reproduce.

Operating System: KDE neon Testing Edition
KDE Plasma Version: 6.0.0
KDE Frameworks Version: 6.0.0
Qt Version: 6.6.2
Kernel Version: 6.5.0-21-generic (64-bit)
Graphics Platform: Wayland
Processors: 12 × Intel® Core™ i7-9750H CPU @ 2.60GHz
Memory: 15.4 GiB of RAM
Graphics Processor: AMD Radeon Pro WX 3200 Series
Comment 2 Doug 2024-03-06 04:43:12 UTC 
I can reproduce this on Wayland, too.
Comment 3 Nate Graham 2024-03-06 05:27:00 UTC 
There is no Force Font DPI setting on Wayland in Plasma 6, and the value set for it on X11 is ignored on Wayland. So what you're seeing is something else.
Comment 4 Kishore Gopalakrishnan 2024-03-10 10:26:44 UTC 
I find that with the 'force fonts DPI' setting disabled and Display scaling set to 150% on X11,

1. Qt5 applications are not scaled (checked with Cantor and Kile)
2. The titlebars of all windows are unscaled

Nevertheless, gtk3 applications (gedit) and Qt6 applications (System Settings and Dolphin) have their content scaled correctly.
Comment 5 David Edmundson 2025-01-13 12:21:13 UTC 
This all works as intended.