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  1. Qt
  2. QTBUG-77828

QPainter fails in 5120x1440 resolution

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Details

    • Bug
    • Resolution: Incomplete
    • P2: Important
    • None
    • 5.13.0
    • QPA: X11/XCB
    • None
    • Hardware: Intel i7 5930K, Geforce 1080Ti
      Manjaro kernel: 4.14.138
    • Linux/X11

    Description

      I recently bought the new Samsung 49" ultrawide monitor that has a resolution of 5120x1440 and since then I have some trouble getting certain Qt-based programs to start.
      If I decrease the resolution to 3840x1080 they start just fine and if I then swap back to the native resolution of 5120x1440 they work fine as long as I don't close them.
      If I try to run either program from a terminal I get output about QPainter not being active and eventually it seg faults.

      The programs I've noticed I have problems with is VLC (3.0.8) and KeepassXC (2.4.3). There might be other Qt-based programs that run fine but I haven't investigated other programs I use that run fine to figure out if they use Qt or not.

      As for OS, I'm running Manjaro with i3, all fully updated.

      Attachments

        1. fillwidget.zip
          0.8 kB
        2. output.txt
          7 kB
        3. QT_XCB_NO_MITSHM-output.txt
          17 kB

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              paeglis Gatis Paeglis
              ohjay Oscar J
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              Dates

                Created:
                Updated:
                Resolved: