[kde] [Bug 489464] New: Fractional Scaling on High DPI screens causing visual inconsistency.

[Edan]

https://bugs.kde.org/show_bug.cgi?id=489464

            Bug ID: 489464
           Summary: Fractional Scaling on High DPI screens causing visual
                    inconsistency.
    Classification: I don't know
           Product: kde
           Version: unspecified
          Platform: Arch Linux
                OS: Linux
            Status: REPORTED
          Severity: normal
          Priority: NOR
         Component: general
          Assignee: unassigned-bugs at kde.org
          Reporter: eddielaz.p at gmail.com
  Target Milestone: ---

Problem:
Fractional Scaling on High DPI screens causing visual inconsistency.

Steps to reproduce:
1. First off you need a monitor considered high dpi, e.g. 4k
2. Set scaling to fractional, this means values like: 125%, 150%, 175%... The
bug doesn't happen if the scaling is 100%, 200% etc.
3. Now in certain borders, applications, when resizing or moving the app,
sometimes the borders that supposed to be 1px turns out to be 2px, the look and
the feedback of this feels very, bad and btw I tested this on others Linux
distro and the issue persist, I'm not sure if is a qt issue, or KDE issue,
another thing I'm sure is that this happens in both Qt Quick and Qt Widgets
applications

Additional Notes:
I think the issue is some algorithm/calculation which is not 100% correctly,
dealing in Qt/KDE apps to render wrong pixels.

Expected Result:
Maintain visual fidelity for fractional scaling.

Software/OS Versions:
Linux/KDE Plasma: Arch Linux

-- 
You are receiving this mail because:
You are the assignee for the bug.