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  1. Qt
  2. QTBUG-78086

QSerialPort readyRead broken in 5.13.1, was fine in 5.13.0

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    • Platform/s:
      Windows

      Description

      The signal readyRead is never emitted, even if data is sent to the serial port from a connected device.

      The member bytesAvailable returns 0 even if data has been sent to the serial port from a connected device.

      The only way to have the signal readyRead emitted is receiving some data while waitForReadyRead is waiting.

      In Qt 5.13.0 all worked as intended: readyRead was emitted as soon as the new data was sent to the serial port from a connected device.

      The "Simple Terminal" example can be used to reproduce this bug.
      I've tried the one from Qt 5.13.0 and works fine with a test device (38400 | 8n1 | no flow control).
      The one from Qt 5.13.1 simply outputs nothing.

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              Assignee:
              kuzulis Denis Shienkov
              Reporter:
              jubba Claudio Barutta
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                Created:
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                Resolved:

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