Priority: Not Evaluated
Affects Version/s: 5.13.1
Fix Version/s: None
Component/s: Serial Port
Our application uses QSerialPort to communication with our READ (hardware our company produces).
Since the upgrade to Qt 5.13.1 the communication no longer works. readyRead() is not emitted until a lot of data has been written, but our commands are usually just a few bytes long.
We used Qt 5.9.0 before and all worked fine.
Tested it with Qt 5.12.4 and Qt 5.13.0 - with both at least the Qt Terminal example works fine.
The behavior can easily be reproduced with the Qt Terminal example - it is unusable with Qt 5.13.1.
Our serial port settings are:
Commit: Emit _q_notify only if there's no notification pending
is a regression.