<![CDATA[QT4 vs QT5 - QGLWidget problem...]]>Hi,
I have a problem with a QGLWidget derived class in QT5. If paintGL does nothing except glClear() the window is not cleared at all. When drawing something it is cleared and everything works OK. This happens under QT5. An easy way to check is to comment out logo->draw() from glhello example. With QT4.8 however everything is fine... and native GL , too. My OS is 64b Arch Linux. Did someone have similar problems ?

Cheers,
Pawel

]]>https://forum.qt.io/topic/39385/qt4-vs-qt5-qglwidget-problemRSS for NodeFri, 16 Oct 2026 07:49:18 GMTSun, 23 Mar 2014 19:44:40 GMT60<![CDATA[Reply to QT4 vs QT5 - QGLWidget problem... on Sun, 23 Mar 2014 22:39:55 GMT]]>Can you try with the latest "5.3 beta":http://download.qt-project.org/snapshots/qt/5.3/5.3.0-beta/2014-03-23_28/ ?

If it's still there, you should take a look at the "bug report system":http://bugreports.qt-project.org to see if it's something known. If not please open a new bug report providing a minimal sample example

]]>https://forum.qt.io/post/219711https://forum.qt.io/post/219711Sun, 23 Mar 2014 22:39:55 GMT<![CDATA[Reply to QT4 vs QT5 - QGLWidget problem... on Sun, 23 Mar 2014 22:05:01 GMT]]>Hi,
the latest one for this distro, right now it seems to be 5.2.1
thanks for the post!

]]>https://forum.qt.io/post/219699https://forum.qt.io/post/219699Sun, 23 Mar 2014 22:05:01 GMT<![CDATA[Reply to QT4 vs QT5 - QGLWidget problem... on Sun, 23 Mar 2014 22:01:35 GMT]]>Hi and welcome to devnet,

Which version of Qt 5 are you using ?

]]>https://forum.qt.io/post/219698https://forum.qt.io/post/219698Sun, 23 Mar 2014 22:01:35 GMT