https://bugs.kde.org/show_bug.cgi?id=454067
Bug ID: 454067
Summary: [wayland] Some System Settings text appears blocky
when opened on scaled display until it is moved to a
non-scaled display and back again
Product: systemsettings
Version: 5.24.90
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: general
Assignee: plasma-b...@kde.org
Reporter: indecisiveautoma...@gmail.com
Target Milestone: ---
SUMMARY
Some system settings text appears blocky when it is opened on a scaled display,
until the window is moved to a display that is not scaled and then moved back
again, which displays text with the correct aliasing. This does not affect all
systems settings panels, it does not affect Proxy settings or Input Devices
settings for example, but seems to affect most of what I tested (Everything
under Appearance, Workspace, and Personalisation, as well as About this
System).
Blocky text on 4k@150% scaled display: https://i.imgur.com/dQ0lzFs.png
After moving to 1080p display that is not scaled and back again:
https://i.imgur.com/W0inwwT.png
This affects the Shortcuts menu in System Settings but it does NOT affect the
shortcuts menu inside of other KDE applications, i.e. Spectacle. They render
correctly. Also, I believe this issue is present even on 5.24, but I don't
think it was quite as prevalent. At least if it was, I did not notice it in as
many places in System Settings as I do now, but I can't verify this.
STEPS TO REPRODUCE
1. Open System Settings on a scaled display
2. Open one of the sub menus - For example, About this System
3. If text is blocky, move it to a non-scaled display
OBSERVED RESULT
Text is blocky in some System Settings submenus until it is dragged to an
unscaled display and dragged back
EXPECTED RESULT
Text should display properly on scaled display without needing to be dragged to
an unscaled display.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: 5.17.9-zen1-1-zen (64-bit)
KDE Plasma Version: 5.24.90
KDE Frameworks Version: 5.94.0
Qt Version: 5.15.4
ADDITIONAL INFORMATION
- I am using a setup with 4 displays, three unscaled 1080p displays and one 4k
display scaled at 150%. This could perhaps be related. With other similar
issues such as Bug 448556, scaled text issues seem to go away when there is
only one monitor. So the issue could be rooted more specifically in mixed-DPI
or mixed-scaling display setups.
- Possibly related: Bug 448567, Bug 448556
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