this is downstream tracking bug for https://bugs.kde.org/show_bug.cgi?id=187356 in comment 3 it was asked... Please find out how your Qt4.5 was built (ask your distribution packagers), if they used the configure switch -graphicssystem raster or -graphicssystem opengl then file a bugreport with your distribution. Thats simply wrong, enabling anything but the native graphicssystem on X11 will cause random applications to break in random ways - from painting errors as you see to crashes. I had x11-libs/qt built with opengl use flag... but that flag only applies to that build which is meta... does it actually enable the above configure option? I see the raster use flag... perhaps it should be removed. I was not using that. I'm not fluent enough in how the qt.eclass/ebuilds work to know if having opengl enabled in the meta build would turned this on. Reproducible: Always
No!. Raster use flag wont be removed cause not everybody uses KDE4. There are other people with other DE that want raster backend rendering engine. There is a big fat warning when you enable raster use flag though to warn you about possible corruption etc . about the opengl use flag , this flag does not enable opengl graphics engine but instead it build the QtOpengl module. So this flag is irrelevant to possible corruption To sum up, you should really avoid using raster use flag with KDE4 ( unless you want to satisfy your curiosity :) ). Also, opengl use flag has nothing to do with opengl backend engine. This bug will close as invalid. Feel free to re-open it if I did not answer properly :) Thanks
