https://bugs.kde.org/show_bug.cgi?id=441460
Bug ID: 441460
Summary: When enabling second display with lower resolution
than primary display, second monitor has visual
defects even at matching/correct resolution
Product: systemsettings
Version: 5.22.4
Platform: Other
OS: Linux
Status: REPORTED
Severity: normal
Priority: NOR
Component: kcm_kscreen
Assignee: kscreen-bugs-n...@kde.org
Reporter: kdere...@gmail.com
CC: plasma-b...@kde.org
Target Milestone: ---
SUMMARY
Assuming a monitor setup like this:
Primary: 1440p
Secondary: 1080p
If the secondary is disabled and the primary is set to 1440p, then when you
enable the second display, the resolution seems to be correctly set to the
highest common denominator (1080p) - but the displayed image is visually
defective.
STEPS TO REPRODUCE
1. Start with 1440p monitor as primary and 1080p as secondary
2. Ensure you're running 1440p and the secondary monitor is disabled
3. Now enable the secondary monitor using Win+P/Meta+P
OBSERVED RESULT
KDE settings reflects 1080p, but visual issues affect text legibility and edge
smoothness.
EXPECTED RESULT
Clear, crisp image.
SOFTWARE/OS VERSIONS
Linux/KDE Plasma: Kubuntu 21.04
KDE Plasma Version: 5.22.4
KDE Frameworks Version: 5.85.0
Qt Version: 5.15.2
ADDITIONAL INFORMATION
Screen scaling set to 100% on both displays. Not forcing font DPI setting.
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