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  1. Qt
  2. QTBUG-78475

QSerialPort readyRead signal isn`t emitted

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Details

    • Bug
    • Resolution: Duplicate
    • Not Evaluated
    • None
    • 5.13.1
    • Serial Port
    • None
    • HP laptop
    • Windows

    Description

      I´ve used the terminal example from QT Creator (https://doc.qt.io/qt-5/qtserialport-terminal-example.html) in order to communicate with a attached device via usb to rs232 dongle.

      My settings are 460800 Baud 8 data bits 1 stop bit no flow or parity.

      I`ve probed the RX and TX lines with a oscilloscope and each character is send out to the device and resent via TX back to PC but the readyRead signal isn`t emitted.

      The example is working with QT 12.5.1 but not with 5.13.1 with MinGW 7.3.0 64bit on the same machine.

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          duplicates

          Bug - A problem which impairs or prevents the functions of the product. QTBUG-78086 QSerialPort readyRead broken in 5.13.1, was fine in 5.13.0

          • 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
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              kuzulis Denis Shienkov
              sfuchs Steffen Fuchs
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                Created:
                Updated:
                Resolved:

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