> torsten, can you make anything of this? (lkcl's messages in full at > http://bugs.debian.org/806670) > Yes, the event handling is likely the root cause of the issue, but the exact same code works fine with Qt4 and in some cases also with Qt5. There were a number of issues in Qt5 that caused problems, but according to their bug tracker those are fixed (basically https://github.com/openscad/openscad/blob/master/src/openscad.cc#L722)
Just now looking at the code, that line might have been disabled by the patch that introduces QOpenGLWidget (but I'm not sure if that's included in 2015.03-1). > hm ... i was just going to bisect this, but when i checked out that very > version and built it directly from git, i saw the same > dragging. > That basically sums up the reports so far. On my system I can reproduce the issue with debug builds, but not with release builds. On other systems it seems to behave differently. It might be also be influenced by the OpenGL drivers used (I'm using nouveau / Gallium 0.4 on NVE7 / Mesa 11.0.8). Upstream issue is https://github.com/openscad/openscad/issues/1045 It seems the best short term solution is to enable usage of the new QOpenGLWidget "qmake CONFIG+=qopenglwidget". Unfortunately we can't just enable it in general as this needs Qt5.4 and also is causing issues on MacOSX and totally breaks on Windows. On Linux it seems to work, but did not get much testing yet. There's some work going on to update the legacy OpenGL code, but with the limited dev resources that might take a while... ciao, Torsten.
