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  1. Qt
  2. QTBUG-65424

Gnome/X11/HiDPI -> no scaling

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Details

    • Bug
    • Resolution: Fixed
    • P2: Important
    • None
    • 5.13.0
    • QPA: X11/XCB
    • None

    Description

      OS: Ubuntu 19.10

      DE: GNOME 3.32 / X11 session

      Resolution: 3840x2160, 96x96 dpi

      Gtk scaling: 200%

      When I try to run any Qt-based application (tested with http://download.qt.io/snapshots/qtcreator/4.10/) on my UHD display under a fresh Ubuntu 19.10 install, the app does not scale at all.

      KDE Plasma sets QT_SCREEN_SCALE_FACTORS, but GNOME upstream thinks, it shouldn't:

      https://bugzilla.gnome.org/show_bug.cgi?id=791671

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          is duplicated by

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-74836 Qt does not use screen scaling set in Gnome

          • P2: Important - Urgent, should be fixed, but will not stop the release.
          • Closed
          relates to

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-69136 xwayland: program -geometry uses logical rather than physical coordinates; default window size is wrong (QT_AUTO_SCREEN_SCALE_FACTOR=1)

          • P4: Low - Would be nice to fix, but it's not very important.
          • Reported
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              paeglis Gatis Paeglis
              eszlari Peter Eszlari
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              Dates

                Created:
                Updated:
                Resolved:

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