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  1. Qt
  2. QTBUG-99605

XCB: QGuiApplication::primaryScreen() always last screen

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Details

    • Bug
    • Resolution: Done
    • P2: Important
    • 6.3.0 Alpha, 6.4.0 Beta1
    • 6.3
    • QPA: X11/XCB
    • None
    • deepin
    • Linux/X11
    • 38a66aa53a (qt/qtbase/dev) 38a66aa53a (qt/tqtc-qtbase/dev) a318de3f40 (qt/qtbase/6.3) a318de3f40 (qt/tqtc-qtbase/6.3)

    Description

      since  "xcb: convert last screen to fake when no screen" d8f37d94e537aaab4fa960b80aacabe79bcc14c4 https://codereview.qt-project.org/c/qt/qtbase/+/371170 committed，QGuiApplication::primaryScreen() always return last screen.

      see https://github.com/qt/qtbase/blob/d8f37d94e537aaab4fa960b80aacabe79bcc14c4/src/plugins/platforms/xcb/qxcbconnection_screens.cpp#L537-L540

      xcbScreenNumber always equal to primaryScreenNumber(), so every primaryScreen will setPrimary(true)

      Attachments

        1. screen.zip
          6 kB
        2. screen.mp4
          2.59 MB

        Issue Links

          resulted from

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-96247 QScreen crash on Linux/X11

          • P1: Critical - Urgent and Important, will STOP the release if matched with set FixVersion field. This includes regressions from the last version that are not edge cases; Data loss; Build issues; All but the most unlikely crashes/lockups/hanging; Serious usability issues and embarrassing bugs & Bugs critical to a deliverable. This is the highest possible priority for requirements.
          • Closed
          For Gerrit Dashboard: QTBUG-99605
          # Subject Branch Project Status CR V
          388677,8 xcb: Correctly update primary screen status with RandR 1.5 dev qt/qtbase Status: MERGED +2 0
          389507,2 xcb: Correctly update primary screen status with RandR 1.5 6.3 qt/qtbase Status: MERGED +2 0

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              liaqi Liang Qi
              kingderzhang kingderzhang
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              Dates

                Created:
                Updated:
                Resolved:

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