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

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              paeglis Gatis Paeglis
              ohjay Oscar J
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              Dates

                Created:
                Updated:
                Resolved:

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