[kde] [Bug 479891] Some text glyphs in QML software are vertically mis-aligned or squished when using a fractional scale factor

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=479891

--- Comment #66 from gilles at gagniard.org ---
Hi,

Unfortunately, it's not a valid workaround, neither on X11 nor Wayland (and
this bug is equally reproducible on both environments with the reproducer in
https://bugs.kde.org/show_bug.cgi?id=479891#c37 as long as fractional scaling
is enabled):

- On X11, it screws up the relative scaling of images and text, as I explained
in https://bugs.kde.org/show_bug.cgi?id=479891#c35 for instance

- On Wayland, it completely disables native fractional rendering, instead
relying on the compositor, as explained here
https://bugreports.qt.io/browse/QTBUG-113574. As a result, fonts gets blurry,
which depending on personal tolerance to bad font rendering, is perceived from
invisible to insufferable. In particular, it makes CJK characters really hard
to read at small font sizes.

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