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  1. Qt
  2. QTBUG-47179

[REG 4.8.6->5.5] QTimer doesn't work while screen is locked [works when qt configured with -no-xcb-xlib]

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    • Icon: Bug Bug
    • Resolution: Unresolved
    • Icon: P2: Important P2: Important
    • None
    • 5.5.0
    • QPA: X11/XCB
    • None
    • Xubuntu 14.04 64bit, Light Locker (standard)

      Qt 5.5 QTimer doesn't work while the session / screen is locked by Light Locker (Xubuntu, standard configuration). I have attached two sample apps that shows the problem. A version for the console and one with GUI.

      The console version works when the screen is locked, the GUI version is stopped as long as the screen is locked (see the missing timestamps in the output).

      Qt 4.86 works fine
      Qt 5.5 console: ok
      Qt 5.5 GUI: fails

        1. Sample_apps.zip
          5 kB
          Michael Mense
        2. log.txt
          20 kB
          Michael Mense
        3. trace.log.zip
          43 kB
          Michael Mense
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            Unassigned Unassigned
            hefeweizen Michael Mense
            Veli-Pekka Heinonen Veli-Pekka Heinonen
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