When you start you get the error could not initialize openGL
The problem is a Plugin called Welcome
First you start qtcreator with the parameter -noload Welcome
qtcreator -noload Welcome
When the IDE opens you go to the help menu, select About Plugins, go to Welcome and uncheck this plugin.
Now you are able to start just by using qtcreator on the commandline or start it from the GUI.
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About the Author
Author: Wim Peeters - Keskon GmbH & Co. KG
Wim Peeters is electronics engineer with an additional master in IT and over 30 years of experience, including time spent in support, development, consulting, training and database administration. Wim has worked with SQL Server since version 6.5. He has developed in C/C++, Java and C# on Windows and Linux. He writes knowledge base articles to solve IT problems and publishes them on the Lubby Knowledge Platform.